Answer:
It increases to three times it's original value.
Explanation:
B
Hi there!
Recall the equation for the magnetic field of a wire (assuming infinite):
[tex]B = \frac{\mu _0 i_{encl}}{2\pi r}[/tex]
B = Magnetic field (T)
μ₀ = Permeability of Free Space (Tm/A)
i = enclosed current (A)
r = distance from wire (m)
From the equation, we can see that there is a DIRECT relationship between the current and the magnetic field.
Therefore, if the current is increased by a factor of 3, the FIELD will also be increased by a factor of three.
A group of physics students set a tuning fork of 500 Hz just above a big cooking pot. The tuning for is struck and continues to ring throughout the experiment. The students pour water into the pot until they hear the resonance of the fundamental mode.
If the cooking pot is 0.2 meters tall, how long is the wavelength of the resonance created?
What is an estimate for the speed of sound in this situation?
You may discover that the speed of sound seems a bit off. Write down some ideas on why that is.
(a) The wavelength of the resonance created is 0.8 m.
(b) The speed of the sound in the fundamental mode is 400 m/s.
(c) The low value of speed of speed of sound in water calculated may be as a result of low temperature of the water poured into the cooking pot.
Wavelength of the resonance createdThe wavelength of the resonance created is determined by assuming the cooking pot to be a closed pipe.
Wavelength of fundamental mode of a closed pile = 4L
where;
L is length of the pipeλ = 4 x 0.2 = 0.8 m
Estimated speed of soundThe speed of the sound in the fundamental mode is calculated as follows;
v = fλ
v = 500 x 0.8
v = 400 m/s
Sound wave is directly proportional to temperture, as the temperature of the water increases, the speed of sound increases as well.
The low value of speed of speed of sound in water calculated may be as a result of low temperature of the water poured into the cooking pot.
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The average speed of a car that travels 100 miles in 4 hours is
Emma wants to drive forward in her car. What does she need to do other than place her vehicle's gear in Drive and accelerate
She need to release the cluch slowly and apply force on the accelator other than place her vehicle's gear in Drive and accelerate
How we drive a car?We drive a car by applying pressure on the accelator, remove foot from the brakes and releasing cluch slowly. When the vehicle get speed, we have to change the gear.
So we can conclude that She need to release the cluch slowly and apply force on the accelator for driving a car.
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state two factors that affect the type of Shadows formed
Answer:
The two factors that affect the type of Shadows formed are stated below ::
The distance between the source of land and the object. The angel where the ray of light falls on the object.Answer:
The distance of the source of light from the object.
The angle at which the light rays fall on the object.
The size of the opaque object.
The size of the shadow depends on the distance of the source of light and on the angle at which the light rays fall on the object.
If the source of light is closer to the object, a larger shadow is formed than when the source of light is far from the object.
Explanation:
picture is in the top ️️️⬆️⬆️⬆️⬆️⬆️
It can be observed from the above figure that as the angle of light incident on the object changed the length of the shadow changed.
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A wave has a speed of 3.4m/s, if its frequency is 2.5 (Hz). What is the wavelength. Equation:
Speed= wavelength x frequency (Hz)
A. 25m
B. 10m
C. 1.36m
D. 0.73m
Answer:
1.36 meters
Explanation:
we just plug in the values into the formula given in the question
3.4/2.5 = answer
answer is 1.36
What is the molarity of 3 moles of nacl in 12 liters of water
Answer:
your mom g
Explanation:
DRACO SEASON WITH THE BOOK BAG
Non-Contact Forces Unit Test
Why is glass a good insulator? (1 point)
O The atoms in glass hold on tightly to their positively charged particles.
O The atoms in glass do not hold on tightly to their positivelycharged particles.
The atoms in glass do not hold on
Glass is known to be a good insulator because atoms in glass hold on tightly to their positively charged particles.
What is an insulator?Insulators are those substances that do not conduct heat or electricity like their conductor counterparts.
Conduction of electric charges is as a result of the free flow of electrons in the atom of the substance.
Hence, a good insulator holds on tightly to its electrons and prevent them from flowing freely to conduct electric charges.
Therefore, Glass is known to be a good insulator because atoms in glass hold on tightly to their positively charged particles.
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It's the first answer, The atoms in glass hold on tightly to their positively charged particles.
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If an electron, moving from east to the west, enters a uniform magnetic field what is the direction of the magnetic field
Answer:
The electron moves undeflected through the field
I have been made into a body that can fly to every country. even though I am light, I am very strong. mention my name and my property
Answer:
Aeroplane
Explanation:
they have tail surfaces to stabilize the wings
When using a different calorimeter, and mixing 50 ml of hot water at 65 degrees c with 60 ml of water in the calorimete
The specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.
Conseervation of energyThe heat capacity of the calirometer is determined by applying the principle of conservation of energy.
Heat lost by the hot water = Heat gained by the calirometer
[tex]Q _w = Q_c\\\\M_w C_w\Delta \theta _w = M_c C_c\Delta \theta _c[/tex]
where;
M is massmass = density x volume = ρV
Density of water = 1 g/ml
Mass of hot water = 1 x (50) = 50 g
Mass of water in calorimeter = 1 x (60) = 60 g
Equilibrium temperature[tex]\Delta T_c = 5.5\\\\T - 25 = 5.5\\\\T = 30.5 \ ^0C[/tex]
Specific heat capacity of the calirometer[tex]50 \times 4.184 \times (65 - 30.5) = 60 \times C_c \times (30.5 - 25)\\\\7217.4 = 330C_c\\\\C_c = \frac{7217.4}{330} \\\\C_c = 21.87 \ J/g^0C[/tex]
Thus, the specific heat capacity of the calorimeter used in mixing the water is determined as 21.87 J/g⁰C.
The complete question is below
When using a different calorimeter, and mixing 50 ml of hot water at
65 degrees C with 60 ml of water in the calorimeter at 25 degrees C, the temperature of the calorimeter increased by 5.5 degrees C.
a. Calculate the heat capacity of this calorimeter?
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Conduction is greater in solids .explain in your own words Why?
Explanation:
because conduction takes place in objects whose particles are close/touching each other therefore conduction happens in solid as liquid and gas paricles are not close to each other
what is the weight of an object (on earth) that has a mass of 4.5kg
weight=
mass=
gravity=
formula:
substitution:
answer:
Answer:
weight-44.1 kg- mass-4.5kg gravity-9.8 formula-(see explanation)
Explanation:
force/weight on earth is = mass x gravitational field strength
When charging objects by induction which of the following must be true
A. A path to ground is not needed when using a positive source
B. The objects being charged must be conductors
C. The objects takes on the same charge as it's source
D. The source loses some of its charge
Answer:
C
Explanation:
because that's how science works
Sigmund freud believed mental disorders were caused when an individual __________. a. recognized personal negative qualities b. masked painful feelings c. buried feelings in the unconscious d. distorted the present reality
Answer:
C. buried feelings in the unconscious
Explanation:
Hope that helps!
Sigmund Freud believed mental disorders were caused when an individual has buried feelings in the unconscious.
What exactly are mental disorders?Mental disorders are illnesses that impact your thoughts, feelings, emotions, and behavior.
They might be short-term or long-term. They can have an impact on your capacity to interact with others and operate on a daily basis.
There are several sorts of mental illnesses. Panic disorder, obsessive-compulsive disorder, and phobias are examples of anxiety disorders.
Depression, bipolar illness, and other mood disorders are all examples of mood disorders.,
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A 10-A current is maintained in a simple circuit with atotal resistance of 209 ohm. What net charge passes through any point in a circuit during a 1-minute interval?
Answer:
I = Q / t definition of current I
Q = i t = 10 Coul/sec * 60 sec = 600 Coul
A 10-A current is maintained in a simple circuit with a total resistance of 209 ohms, then the net charge passes through any point in a circuit during a 1-minute interval would be 6000 Coulombs.
What is an electric charge?Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge. You can have a positive or negative electric charge.
Electric current is defined as the charge per unit of time.
The mathematical relation between current and the electric charge
I =Q/T
Let us first convert the time period of minutes into seconds
1 min = 60 seconds
10 min = 10*60 seconds
=600 seconds
Q = I*t
=10*600
=6000 Amperes
Thus, the net charge that passes through any point in a circuit during a 1-minute interval would be 6000 Amperes.
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Identify the reactions of the citric acid cycle that provide reducing power for the electron‑transport chain
The reactions of the citric acid cycle that provide reducing power for the electron‑transport chain are as follows:
Conversion of isocitrate to α-ketoglutarateConversion of succinate to fumarateConversion of α-ketoglutarate to succinyl-coAWhat is citric acid cycle?Citric acid cycle also known as kreb cycle is a series of biochemical reactions that involves the synthesis of reduced electron carrier and ATP.
The following steps in the citric acid cycle involves the provision of reducing power for the electron‑transport chain:
Conversion of isocitrate to α-ketoglutarate: Isocitrate is converted to α-ketoglutarate as catalyzed by isocitrate dehydrogenase. Conversion of α-ketoglutarate to succinyl-coA: α-ketoglutarate is converted to succinyl-coA as catalyzed by α-ketoglutarate dehydrogenase.Learn more about citric acid cycle: https://brainly.com/question/11459709
The reactions of the citric acid cycle which provide reducing power for the electron‑transport chain are:
Conversion of isocitrate to α-ketoglutarateConversion of α-ketoglutarate to succinyl-coAConversion of succinate to fumarate.Which citric acid cycle, provide reducing power?Citric acid cycle, is the tricarboxylic acid cycle (TCA), which is the combination of chemical reaction. This reaction is necessary to produce the energy in aerobic organisms.
The reactions of the citric acid cycle which provide reducing power for the electron‑transport chain are:
Conversion of isocitrate to α-ketoglutarateConversion of α-ketoglutarate to succinyl-coAConversion of succinate to fumarate.Hence, the option 1,3 and 4 is correct.
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If a peregrine falcon dove at its maximum speed for half a mile to catch prey, how many seconds would the dive take? (round your answer to the nearest second. ) correct answer9
The number of seconds that the dive will take if peregrine falcon dove at its maximum speed for half a mile is 9 seconds.
How to calculate the time?From the complete information, it was stated that the peregrine falcon can reach speed of up to 200 miles per hour.
Therefore, the number of seconds that the dice would take for half a mile will be calculated thus:
1 hour = 200 miles
3600 seconds = 200 miles
1 second will be: = (200/3600) = 0.056 miles
Therefore, the time will be:
200miles / 1 hour = 0.x
x = 0.0025 hours
Therefore, 0.0025 hours will be:
= 0.0025 × 3600
= 9 seconds.
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the connection between a medium and a mechanical wave
Answer:
The energy of a mechanical wave can travel only through matter. The matter through which the wave travels is called the medium (plural, media). The medium in the water wave pictured above is water, a liquid. But the medium of a mechanical wave can be any state of matter, even a solid.
Explanation:
Brainlest pls if can thank you ! i hope its helped
What are the two conditions for equilibrium of a rigid body? how would this experiment demonstrate their validity?.
Answer:
They're are Conditions .... (L00K D0WN.)
Explanation:
Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium.
An archer shot a 0.04 kg arrow at a target. The arrow accelerated at 7,000 m/s2 to reach a speed of 60.0 m/s as it left the bow. How much force did the arrow have?
The force at which the arrow moved when an archer shot a 0.04 kg arrow at a target is 280 N.
What is force?Force is the product of mass and acceleration.
To calculate the amount of force the arrow moves, we use the formula below.
Formula:
F = ma............ Equation 1Where:
F = Force m = mass of the arrowa = acceleration of the arrow.From the question,
Given:
m = 0.04 kga = 7000 m/s²Substitute these values into equation 2
F = 0.04×7000F = 280 NHence, the force at which the arrow moved is 280 N.
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When you serve the ball, if the ball does not land in the opposite side rectangle this is called a ______. question 2 options: fault miss volley foul
Answer:
its called a fault
Explanation:
Its when u mess up
what is the power of a device with resistance 1000 ohms if a current of 8a is flowing through it? give your answer in watts.
You have to find voltage first.
1000×8= 8000V
Then you use the formula P=IV
P=(8)(8000)
P=64,000 Watts
I think this is right
how fast would u have to throw a baseball for it to catch on fire? (explanation in step by step equations)
Explanation:
Multiply the time by the acceleration due to gravity to find the velocity when the object hits the ground. If it takes 9.9 seconds for the object to hit the ground, its velocity is (1.01 s)*(9.8 m/s^2), or 9.9 m/s
Answer:
800 feet per sec.
Explanation:
Converting it over from 105.1mph to ft per sec is only about 154.15fps.
C(i). A body weighs 600g in air and 400g in water. Calculate;
i. Up thrust of the body
ii. Volume of the body
iii. Relative density of the solid
iv. Density of the solid
Answer:
B buoyant force (mass) = 600 - 400 = 200 g (I)
upthrust is 200 g due to decrease in apparent body weight
(Note that g is being treated as force here when it is actually mass)
D = M / V definition of density
since density of water is 1 (1 g / cm^3)
from (I) the equivalent volume of water is 200 cm^3 since the upthrust will equal the weight of the water displaced
Relative density of solid is 600 g / 200 g = 3 (weight of solid vs the weight of the water displaced
D = 3 g / cm^3 density of solit
What is involved when water changes from one phase to the next?
a
thermal energy
b
indirect energy
c
finite energy
d
ideal gas laws
Thermal energy is involved when water changes from one phase to the next. Option A is correct.
What is latent heat ?Latent heat is the heat needed for the phase change . When the temperature remains constant during melting or boiling, the added energy is employed in the phase change process.
The total number of water particles remains constant when water changes states throughout the water cycle.
When water alterations from one phase to the next, thermal energy is involved. Latent heat is the storage of thermal energy.
Hence, option A is correct.
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A coin has a mass of 7.0g. It is made of a metal alloy of density 5.6g/cm3. Calculate the volume of the coin.
[tex]\text{Density,}\\\\~~~~~~~~\rho = \dfrac mV\\\\\\\implies V = \dfrac m{\rho}\\\\\\\implies V = \dfrac{7 \times 10^{-3}~ \text{kg}}{\tfrac{5.6 \times 10^{-3}~ \text{kg}}{ 10^{-6} ~\text{m}^3} }\\\\ \\\implies V = \dfrac{7 \times 10^{-3}~ \text{kg}}{5.6 \times 10^{-3} \times 10^6~~ \text{kg}~ \text{m}^{-3}}\\\\\\ \implies V = 1.25 \times 10^{-6}~ \text m^3\\\\\\\implies V =0.00000125~ \text m^3\\\\\text{Hence the volume of the coin is 0.00000125}~ \text m^3[/tex]
When a skydiver falls towards the Earth, the force of gravity from Earth pulls her towards the
Earth and she is obviously accelerating towards the Earth.
Can the reverse (the force of gravity pulls the Earth towards her and the Earth is accelerating
towards her) be true? Explain.
Answer:
yes
true
Explanation:
because earth is rotation
What is meant by the statement that the power of an electric heater is 1200W? What happens to the kinetic energy when the
velocity of a moving body is doubled?
The statement the power of an electric heater is 1200 W means that the electric heater used up 1200 J of electric energy in one second.
When the velocity of a moving body is doubled, its kinetic energy will become four times its initial kinetic energy.
What is power?Power is the rate at which energy is used up. The s.i unit of power is Watt (W).
From the question, if an electric heater is 1200 W, it means that the electric heater used up 1200 J of electric energy in one second
What is kinetic energy?Kinetic energy is the energy of a body in motion.
The formula for the kinetic energy of a body is given as
K.E = mv²/2From the equation above, it can be seen that if the velocity of a moving body is doubled, the kinetic energy of the body will become four times the initial kinetic energy of the body.
Hence, The statement the power of an electric heater is 1200 W means that the electric heater used up 1200 J of electric energy in one second.
When the velocity of a moving body is doubled, its kinetic energy will become four times its initial kinetic energy.
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Find fff, the magnitude of the force applied to each side of the nutcracker required to crack the nut
Force is a vector, as such we know that the force required to crack a nut is the resultant of the individual forces applied form all sides of the nut.
What is force?The term force is used to describe that which causes a change in the position of an object. Now the question is incomplete but I will try to help you the much I can.
Recall that force is a vector quantity. Hence the magnitude of the force required to crack a nut is the resultant of the individual forces applied form all sides of the nut.
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For ____________, the error is calculated by finding the sum of squared distance between actual and predicted values
Answer: It is minimising
For minimizing, the error is calculated by finding the sum of the squared distance between actual and predicted values.
What is the error?The difference between the measured and analysis of the financial statements might well be defined as an error. For instance, if the two operators use the same complete and precise tool.
We have:
For ____________, the error is calculated by finding the sum of the squared distance between actual and predicted values
The correct answer is minimizing because according to the information provided in the problem. The sum of squared distance between actual and anticipated values is calculated to "minimize" the mistake.
This is one of the most significant aspects of statistics, and it involves mathematical computations involving error calculations for various values.
Thus, for minimizing, the error is calculated by finding the sum of the squared distance between actual and predicted values.
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