A circular loop of wire with radius 0.0410 m and resistance 0.169 Ω is in a region of spatially uniform magnetic field, as shown in the following figure (Figure 1). The magnetic field is directed out of the plane of the figure. The magnetic field has an initial value of 7.78 T and is decreasing at a rate of -0.605 T/s.
a) Is the induced current in the loop clockwise or counterclockwise?
b) What is the rate at which electrical energy is being dissipated by the resistance of the loop?

A. 40 cm

We can use Coulomb's law to calculate the distance between the two Cheetos:

F = k * (q1 * q2) / r^2

where F is the force acting on the first Cheeto, q1 and q2 are the charges on each Cheeto, k is the Coulomb constant and r is the distance between the two Cheetos.

Given that the force acting on the first Cheeto is 5.73 E−1 N, the charge on the first Cheeto is 1.2 E−5 C, the charge on the second Cheeto is 2.5 E−6 C and the Coulomb constant is 8.99 E9 N*m2/C2.

We can rearrange the equation to solve for the distance r:

r = (k * q1 * q2 / F)^(1/2)

r = (8.99 E9 N*m2/C2 * 1.2 E−5 C * 2.5 E−6 C / 5.73 E−1 N)^(1/2)

r = 0.04 m

So the distance between the two Cheetos is 40 cm.

Nuclei of the same element can have different values of A and Nuclei of the same element can have different values of N and Nuclei of the different elements can have the same values of A.

On the basis of the 1909 Geiger-Marsden gold foil experiment, Ernest Rutherford identified the atomic nucleus in 1911, which is the compact, dense region made up of protons and neutrons at the heart of an atom.

There are 118 species of atoms listed in the periodic table of elements, and each of these can be found (either naturally or artificially) in several iterations with various neutron counts, leading to a total of around 3,000 distinct atomic nuclei.

Both nuclei are held together by the electron, which "orbits" them. We have a molecular ion because the total charge is undoubtedly non-zero. According to Wikipedia, this system is referred to as the dihydrogen cation and goes by the symbol H+2.

the solution is

The proton ratio (Z) for a particular element is fixed. The mass number can vary depending on the number of neutrons (N) in the same element and other elements (A).

Atoms having the same Z and different N (and hence different A) are called isotopes. They are usually forms of the same element.

Sometimes atoms of different element can have the same mass number (A) but different atomic number (Z) and neutron number (N) that makes up the same mass number (A). They are called isobars

Also,atoms of different element can have the same neutron number (N) but different atomic (Z) and mass number (A). they are called isotones

therefore

A) Option 3 and 4

B) Option 3 and 4

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Each contour line as you go inland represents ground that is at a constant

elevation 5 meters higher than the previous contour are:

a) Steep cliffs can be found at points A, D, and F on the map.

b) High area A is 35 meters above sea level and high area B is 50 meters above sea level.

c) The path from sea level to high point B with the most gentle slope would be to follow the contour lines from sea level upwards in a spiral pattern, starting at point A and ending at point B.

d) Following the path in part C will minimize the amount of work to climb to the top, as it follows the contour lines which represent the most gentle slopes.

What is contour line?
A contour line is a line drawn on a map that connects points of equal elevation, such as the peaks and valleys of a landscape. Contour lines are used to show the shape of the land, which can help map-readers to understand the features of the terrain and the change in elevation of the landscape.

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According to the question of circuit, the value of resistor R will be 10 Ω.

What is circuit?
Circuit is an electrical network consisting of connected components that allow electrical signals or power to pass through it. The components are usually connected by conductors such as wires, cables, or printed circuit boards. Circuits can be simple and consist of only a few components, or extremely complex containing thousands of components. Circuits can be used to control machines, computers, household appliances, and more. They are used in almost every area of electronics and electrical engineering, from the communication signals in a cellphone to the power distribution in a skyscraper.

R is calculated by Ohm's law, which states that the voltage (V) across a resistor is equal to the current (I) multiplied by the resistance (R). Therefore, R = V/I = 6V/0.86A = 10 Ω.

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Consider the first-order decomposition of A molecules (red spheres) in three vessels of equal volume - A) 2:4:3 , B) 1:1:1 , C) increase by a factor of 2, D) remain the same.

What is first-order decomposition ?

When the reaction's pace is proportional to the concentration of the reactant, it is referred to as a first-order reaction. On the other hand, as the concentration rises, the reaction rate doubles. One or two reactants are used in the decomposition process, an illustration of a first-order reaction.

What is molecules ?

A molecule is a collection of at least two chemically bound atoms from the same or distinct elements. One molecule of water, for instance, is created when two hydrogen atoms and one oxygen atom combine.

Therefore, the first-order decomposition of A molecules (red spheres) in three vessels of equal volume - A) 2:4:3 , B) 1:1:1 , C) increase by a factor of 2, D) remain the same.

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Answer:

After the inelastic collision, the velocity of the 8 kg mass would be the same as the center of mass velocity. Which is the velocity of the combined system of both masses. To find the velocity of the center of mass, we can use the following formula:

vcm = (m1v1 + m2v2) / (m1+m2)

where m1 = 8kg, v1 = 9.6 m/s east, m2 = 6kg, v2 = 14.8 m/s west

vcm = (89.6 + 6(-14.8)) / (8 + 6) = -0.8 m/s (west)

Therefore, after the inelastic collision, the velocity of the 8 kg mass would be -0.8 m/s (west)

The electric potential is zero when there is no difference in electric potential energy between two points. Therefore, the value of xx between 0 and 1.00 mm where the electric potential is zero is 0.500 mm.

The electric potential at a given point is the amount of electric potential energy per unit charge at that point in space. This can be found by measuring the electric potential difference between two points, one of which is the point at which we are interested in finding the electric potential. In this case, the electric potential at any point between 0 and 1.00 mm is zero since there is no difference in electric potential energy between the two points. Therefore, the value of xx where the electric potential is zero is 0.500 mm.

The electric potential is zero when there is no difference in electric potential energy between two points. Therefore, the value of xx between 0 and 1.00 mm where the electric potential is zero is 0.500 mm.

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7.1 m/s. allows us to determine the angular velocity of the rod after it has been struck by the bullet. Calculated value: = 29.1 s-1.

The angular velocity (w), a vector quantity in uniform circular motion, is determined by dividing the angular displacement (), also a vector quantity, by the change in time (t).

If the ball is rolling without slipping, the rotational acceleration and the provided acceleration will be perpendicular at point B, and the no slip condition will be satisfied at point O by applying mr=I. nevertheless I=mr 2

α= \sr \sω

​Angle acceleration is equal to r.

If a ball rolls without slipping, the acceleration caused by rotation and the supplied acceleration will be perpendicular at point B, making the total acceleration at point A equal to a 2 + (r) 2.​

s = \s2 \s​ \s ω

Point A's velocity is 2

t=2 /2.5*2

= 7.1 m/s.

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Answer

68+84+76+80+x / 5 =78

x= it is value of his result in 5th test

x=82

Explanation:

Then you put all value from smallest to the biggest

68,76,80,82,84

median = 80

From greatest to least, rank is

a. A=B=C

b. A=B=C

c. A=B=C

d. B, A, C

How do you find initial potential energy?

The formula for potential energy depends on the force acting on the two objects. For the gravitational force, the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

What is the formula for initial kinetic energy?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

What happens to kinetic energy when you throw a ball?

When a ball is thrown straight up into the air, all its initial kinetic energy is converted into gravitational potential energy when it reaches its maximum height.

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Answer:

4.09 m/s

Explanation:

1/2 * k * x^2 = 1/2 * 241 N/m * (0.024 m)^2

= 1.56 Nm

KE = 1/2 * m * v^2

v^2 = 2 * KE/m

v = √(2*1.56 Nm / 0.24 kg)

v = 4.09 m/s

(a) Magnitude of the force that the left side of the groove exerts on the ball is 26.4 N. (b) Magnitude of the force that the right side of the groove exerts on the ball is 21.5 N.

(a) Magnitude of the force that the left side of the groove exerts on the ball:

The centripetal force (Fc) required to keep the ball moving in a circle can be calculated using the equation:

Fc = (m × v²) / r

m × g × h = (1/2) × m × v²

v² = (2 × g × h)

v² = 2 × 9.81 × 1.20

v² = 23.55

v = √(23.55)

v = 4.854 m/s

Now, we can find the centripetal force (Fc):

Fc = (3.00 × (4.854)²) / 1.40

Fc = 26.4 N

(b) Magnitude of the force that the right side of the groove exerts on the ball:

Weight of the ball (Fg) = m × g

Fg = 3.00 × 9.81 m/s² = 21.5 N

So, the magnitude of the force that the right side of the groove exerts on the ball (the normal force) is approximately 21.5 N.

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To maintain an electric potential difference and maintain a voltage, a sustained electric current needs a proper pumping mechanism.

There must be some form of pushing force in order to keep an even (or sustained) passage of electric charge across a conductor. The term "emf" for this is electromotive force. Voltage affects current, in other words. Current can be made to flow through a conductor by using a potential difference or voltage. In order for charge to go across a circuit, there needs to be a closed conducting loop and an energy source that can provide an electric potential difference. A supply of freely flowing electric charges (electrons), some sort of push to move the charges across the circuit, and a path to carry the charges are necessary for the production of an electric current.

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a)The radius is 2.6 cm and b) The mass is measured to 4.76 g/cm³ and c)0.00476 kg/m³  is the density kg/m³ in kg/m³.

The quantity of matter per unit volume is referred to as densities (volumetric mass density or specific mass). Density is most frequently represented by the lowercase Greek letter rho, but the Latin letter D is also acceptable. Density is calculated mathematically by dividing mass by volume.

a. The formula: gives the surface area of a spherical.

A = 4 * pi * r²

where A is the surface area, pi is approximately 3.14, and r is the radius of the sphere.

Given the surface area A = 85 cm², we can write the equation for the radius as:

85 = 4 * pi * r²

Solving for r, we get:

r = sqrt(85 / (4 * pi)) = sqrt(85 / 12.56) = sqrt(6.77) = 2.6 cm (approx)

b. The density of an object is given by the formula:

density = mass / volume

The following formula determines a sphere's volume:

V = (4/3) * pi * r³

where V is the volume and r is the radius of the sphere.

Given the mass of the ball M = 160 g, we can calculate the density as:

density = mass / volume = 160 g / [(4/3) * pi * (2.6 cm)^3] = 160 g / (33.51 cm^3) = 4.76 g/cm³

c. To convert the density from g/cm³ to kg/m³, we need to divide the value by 10³.

density = 4.76 g/cm³ / (10³) = 0.00476 kg/m³

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Inductance is a measure of a component or circuit's ability to store electrical energy in the form of a magnetic field when an electric current is flowing through it.

What is  Inductance?

Inductance is a property of a circuit or electronic component that opposes changes in current, producing a voltage in the circuit proportional to the rate at which the current is changing. This voltage is known as an inductive reactance, and is related to the frequency of the current. Inductance is a fundamental property of materials, and is the basis of many electrical components, including transformers, chokes, and inductors. Inductance is also responsible for the generation of electromagnetic fields, which are used in many applications, such as motors and generators.

The equation for the period of an LC oscillator is:

T = 2π √(L x C)

Thus,

2.4 = 2π √(L x 18 x 10^-3)

L = 6.8 x 10^-3 H = 6.8 mH

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Point charges +4.3 µC and -2.2 µC are placed on the x-axis at (10 m, 0) and (-10 m, 0) . Point to the left of the negative charge where the electric potential vanishes is at x = 6.77 m

Charge [tex]Q_{1[/tex] (4.3μC) is places at x=10 m and charge [tex]Q_{2}[/tex] (-2.2μC) is placed at x=-10 m . Let at point A the electric potential vanishes and it is at a distance a to left from charge [tex]Q_{2}[/tex] Formula for potential due to point charge at a distance r from it is  [tex]\frac{KQ}{r}[/tex].

As potential at point A is 0 . So net potential due to all the charges will be 0

Distance of point A from point B is 20+a

Potential at A  is

[tex]-\frac{KQ_{2} }{a}[/tex] + [tex]\frac{KQ_{1} }{20+a}[/tex]  =0  

[tex]\frac{Q_{2}}{a}= \frac{Q_{1}}{20+a}[/tex]  

[tex]20Q_{2}+aQ_{2}=aQ_{1} \\\\a(Q_{1}-Q_{2})=20Q_{2}\\\\a=\frac{20Q_{2}}{Q_{1}-Q_{2}}[/tex]

Putting values of  [tex]Q_{1}[/tex] and [tex]Q_{2}[/tex] we get

[tex]\frac{20*(2.2)}{4.3+2.2}\\ \\=\frac{44}{6.5} \\\\= 6.77[/tex]m  

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7.58 ohms , 22.39 A and 3800 W are the correct answers .

What is resistance ?

Resistance is measured in ohms and represented by the Greek letter omega (Ω). Ohm is named after German physicist Georg Simon Ohm (1784-1854), who studied the relationship between voltage, current and resistance. He has been credited with formulating Ohm's law.

All substances resist the flow of electricity to some degree. They fall into one of two broad categories:

conductor: A material that offers very little resistance through which electrons can easily move. example:

silver, copper, gold, aluminium.

Insulator:

A substance that has a high resistance and restricts the flow of electrons. example:

Rubber, paper, glass, wood, plastic.

a) R= V^2/P = 120*120/1900 = 7.58 ohms

b) P= IV

I=1900/120 = 15.83A

I peak = sqrt2*15.83= 22.39 A

c) average power= 2*average power = 2*1900= 3800 W

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If you walk 5 meters north, 2 meters west, 4 meters south, and 7 meters east....then the displacement is      [tex]\sqrt{26}[/tex].

A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P undergoing motion.

Solution:

As per the given statement when  you walk 5 meters north, 2 meters west, 4 meters south, and 7 meters east... then you will be resulting in forming a right angled triangle from origin to ending point.

That right angled triangle will have

base=5m

perpendicular=1cm

hypotenuse=?

to find hypotenuse we use Pythagoras theorem:

[tex]h^{2}[/tex]=[tex]b^{2}+ p^{2}[/tex]

On putting values we get

[tex]h^{2}[/tex]=[tex]b^{2}+ p^{2}[/tex]

h=[tex]\sqrt{25+1}[/tex]

h=[tex]\sqrt{26}[/tex]

Hence, the displacement is      [tex]\sqrt{26}[/tex].

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The linear distance from the center of the pattern to the n = 4 dark fringe is 0.7142m

Dark fringes are formed by destructive interference where the waves are out of the phase. Bright fringes are formed by constructive interference where waves are in phase.

d= 1.5 x 10^-6m

D = 510 x 10^-3

n=4

lamda = 545 x 10^-9m

Distance= 4 xD x λ/d

Distance= 4 x545 x 10^-9/1.5 x 10^-6

Distance= 0.7142mm

The distance between 2 adjacent dark or bright color fringes is mainly denoted as “fringe width”, calculated as the formula: “β = λD/d”. If the “resultant amplitude” is zero then the interference is determined as “destructive”.

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The nuclei are observed to decay by emitting a β− particle releases a positively charged beta particle called a positron, and a neutrino.

The mechanism of contact between subatomic particles that causes the radioactive disintegration of atoms is known as the weak interaction, also known as the weak force or weak nuclear force, in nuclear physics and particle physics.

The three most frequent types of decay are beta decay, gamma decay, and alpha decay, all of which entail the emission of one or more particles. While the nuclear force and electromagnetism are in charge of the other two, the weak force is the process that causes beta decay.

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The acceleration of the car is - 4.0m/s². Hence, option (B) is correct.

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

Initial velocity of the car: u = + 65 m/s.

Final velocity of the car: v = + 45 m/s.

Time interval: t = 5 seconds.

Hence, acceleration of the car = change in velocity/time interval

= (v - u)/t

= ( +45 - 65)/5 m/s²

= - 20/5 m/s²

= - .0m/s².

So, acceleration of the car is  - 4.0m/s².

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Answer: C.

Explanation: The core or Nucleus of an atom contains Protons and Neutrons. A proton has a +1 charge while a Neutron is a Neutral or 0 charge. Electrons orbit the Nucleus and have a -1 charge.

The angle in degrees. It is the middle angle of the arc or the angle that separates the two arc radii. 180 r, where r is the radius and L is the length of an arc.

We may get the length of an arc using the following formula given an angle and a circle's diameter:

ArcLength = (angle / 360) * (2 * pi * radius)

where diameter equals 2 * radius, angle is in degrees, and

pi = 22/7.

The arc length formula for a circle is times the radius of a circle. When r is in radians, the formula for arc length can be written as arc

length = r.

Arc Length

= (/180) r,

where r is the radius and L is the length of an arc.

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In astronomy, a dynamically hot population refers to a group of stars or other celestial objects that have high velocities and a wide range of orbits.

They are characterized by high kinetic energy and low potential energy, and are typically found in the halo of a galaxy or in the outskirts of galaxy clusters.

On the other hand, a dynamically cold population refers to a group of stars or celestial objects that have low velocities and a narrow range of orbits. They are characterized by low kinetic energy and high potential energy, and are typically found in the disk of a galaxy or in the central regions of galaxy clusters.

In summary, a dynamically hot population is one that is characterized by high velocities, wide range of orbits, high kinetic energy and low potential energy, while a dynamically cold population is one that is characterized by low velocities, narrow range of orbits, low kinetic energy and high potential energy.

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The gravitational potential energy of the skier is  2,712.65 J.

The skier’s gravitational potential energy at this point is calculated by applying the following formula.

P.E = mgh

where;

The gravitational potential energy of the skier is calculated as follows;

P.E = ( 80.7 kg )  x  ( 9.8 m/s² ) x  ( 3.43 m )

P.E = 2,712.65 J

Thus, the gravitational potential energy of the skier is a function of the height and mass of the skier.

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The resistance of wire one is three times of resistance of wire 2. The correct option is (a).

The resistance of a wire is directly proportional to length (L) and inversely proportional to the cross-sectional area.

For wire 1:

R₁ = k ×L ÷(π × (d÷2)²)

Here,

Diameter (d) and constant (k).

For wire 2:

R₂ = k × 3L ÷ (× ((3d)÷2)²)

R₂ = (1/3) × k ×L ÷(π × (d÷2)²)

R₂ = 1÷ 3R₁

R₁ = 3R₂

Hence, The resistance of wire one is three times of resistance of wire 2. The correct option is (a).

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Given a position vector →v=⟨a,b⟩,the magnitude is found by |v|=√a2+b2.

The components of a vector, which is symbolized by an arrow, are a magnitude (the size of a measurement) and a direction (the direction the arrow is pointing), for example, 2 meters south. A solitary vector is a vector that exists by itself. A resultant vector is produced by adding two or more single vectors.

A combined force that is smaller than either individual force is created when two forces engage in opposition to one another. Subtract the magnitude of the smaller force from the magnitude of the bigger force to determine the resultant force. The smaller force and the resultant force both have the same direction.

|A| stands for the magnitude of a vector A, which represents its length. It is the sum of the squares of the vector's component parts' square roots.

A two-dimensional vector's magnitude can be calculated from its coordinates by:

How to Find Magnitude of a Vector?

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According to the given statement So, the volume occupied by 55.85 g of iron is 7.12 cm³.

The quantity of matter per unit volume is referred to as dense (volumetric mass density or specific mass). Density is most frequently represented by the lowercase Greek letter rho, but the Latin letter D is also acceptable.

The density of matter varies with temperature and pressure. This variation is typically small for solids and liquids and much larger for gases. Increasing the pressure on an object decreases the volume of the object, thus increasing its density. Increasing the temperature of a substance.

The following formula determines an object's density:

density = mass / volume

Given that the density of iron is 7.86 g/cm³ and the mass of the iron is 55.85 g, we can calculate the volume occupied by the iron as:

volume = mass / density = 55.85 g / 7.86 g/cm³ = 7.12 cm³

So, the volume occupied by 55.85 g of iron is 7.12 cm³.

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a. The chromatic resolving power of such a grating in the first order is 1.8 x 10^-6 cm.

b. This grating resolve the lines of the sodium doublet (λ1 = 589.00nm, λ2 = 589.59nm ) in the first order cannot resolve the lines of the sodium doublet in the first order.

c. The shortest wavelength you could distinguish from the iron line is 587.8

d. The longest wavelength you could distinguish from the iron line is 587.8

e. The range of wavelengths you could not distinguish from the iron line?(Values of λshorter and λlonger you have calculated in two previous parts.) is 587.8002 - 587.8)nm to (587.8 - 587.8002)nm.

a. The chromatic resolving power of a diffraction grating is given by the formula: R = mλ/Δλ, where m is the order of diffraction, λ is the wavelength, and Δλ is the minimum separation of two wavelengths that can be resolved. In the first order, m = 1. Therefore, the chromatic resolving power is R = mλ/Δλ = 1 * (1/5500 cm) = 1.8 x 10^-6 cm.

b. To determine if the grating can resolve the lines of the sodium doublet, we need to compare the separation of the doublet lines (589.59nm - 589.00nm = 0.59nm) to the chromatic resolving power of the grating. If the separation is greater than the resolving power, the lines can be resolved. The resolving power is 1.8 x 10^-6 cm, which is equivalent to 1.8 x 10^-9 m. The separation of the doublet lines is 0.59 x 10^-9 m, which is less than the resolving power, so this grating cannot resolve the lines of the sodium doublet in the first order.

c. In the second order, m=2, the shortest wavelength that can be distinguished from the 587.8002 nm line of iron is 587.8002 nm - (1.8 x 10^-6 cm) = 587.8002 nm - (1.8 x 10^-9 m) = 587.8002 nm - 0.00000000018 m = 587.8002 - 0.000000018 m = 587.8.

d. In the second order, m=2, the longest wavelength that can be distinguished from the 587.8002 nm line of iron is 587.8002 nm + (1.8 x 10^-6 cm) = 587.8002 nm + (1.8 x 10^-9 m) = 587.8002 nm + 0.00000000018 m = 587.8002 + 0.000000018 m = 587.8.

e. The range of wavelengths that cannot be distinguished from the iron line of 587.8002 nm is from (587.8002 - 587.8)nm to (587.8 - 587.8002)nm.

Therefore, the correct answers are as given above

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Answer:

Explanation:

To construct a graph of force due to gravity vs. distance, we need to collect data for force due to gravity (Fg) and distance (d) and plot the data points on a graph. From the information given, we have the mass of the object (1.23 kg) and the angle of the incline (35º), but we do not have any data for force due to gravity or distance. Without this data, it is not possible to construct a graph for force due to gravity vs. distance.

Since we don't have the data for force due to gravity or distance, it's not possible to calculate the work done by gravity using the data table.

Without the data for force due to gravity, distance, or time it's not possible to construct a free-body diagram or calculate work done by gravity. Also, we don't have the angle of the incline, so we cannot calculate the work done by gravity by multiplying it by the cosine of the angle.

It's important to note that work done by gravity (W) = force due to gravity (Fg) x distance (d) x cos(theta), where theta is the angle between the force of gravity and the distance.

It's also important to remember that work is a scalar quantity and not a vector, and it's the angle between the force and the displacement that is important to calculate the work done by gravity, not the angle of the incline.