**Answer:**

MgS

**Explanation:**

200 Coulombs of charge passes through a point in a circuit for 0.6 minutes. what is the magnitude of the current flowing

**Answer:**

**5.56 A**

**Explanation:**

From the question,

Q = it.............. Equation 1

Where Q = charges, i = current, t = time.

Make i the subject of the equation

i = Q/t.............. Equation 2

**Given: Q = 200 coulombs, t = 0.6 minutes = (0.6×60) seconds**

Substitite these values into equation 2

i = 200/(0.6×60)

i = 5.56 A

Hence the magnitude of the current flowing through the circuit is 5.56 A

An 5kg object is released from rest near the surface of a planet. The vertical position of the object as a function of time is shown in the graph. All frictional forces are considered to be negligible. What is the closest approximation of the weight of the object.

a) 300N

b) 30N

c) 5N

d) 150N

**Answer:**

**The correct option is b: 30 N.**

**Explanation:**

First, we need to find the acceleration due to gravity (a):

[tex] y_{f} - y_{0} = v_{o}t - \frac{1}{2}a(\Delta t)^{2} [/tex] (1)

Where:

[tex]y_{f}[/tex]: is the final vertical position (obtained from the graph)

[tex]y_{0}[/tex]: is the initial vertical position (obtained from the graph)

v₀: is the initial speed = 0 (it is released from rest)

Δt: is the variation of time (from the graph)

From the graph, we can take the following values of height and time:

t₀ = 0 s → [tex]t_{f}[/tex] = 5 s

y₀ = 300 m → [tex]y_{f}[/tex] = 225 m

Now, by entering the above values into equation (1) and solving for "a" we have:

[tex] a = 2\frac{y_{0} - y_{f}}{(t_{f} - t_{0})^{2}} = 2\frac{300 m - 225 m}{(5 s - 0)^{2}} = 6 m/s^{2} [/tex]

Finally, the weight of the object is:

[tex] W = ma = 5 kg*6 m/s^{2} = 30 N [/tex]

**Therefore, the correct option is b: 30 N.**

I hope it helps you!

An inclined plane consists of a 25 m length that raises an object 5 m above the ground. When pushing a 4500 N crate to the top of the ramp you exert 1000 N. What is the ideal Mechanical Advantage of this machine?

The IDEAL mechanical advantage of this ramp is (25m / 5m) = * 5 *.

But it's only giving you a *real* MA of (4500N/1000N) = 4.5 .

The friction between the crate and the surface of the ramp is robbing some of the work you do as you slide the crate up the ramp, which degrades the mechanical advantage.

An open pipe is 1.42 m long

What fundamental frequency

does it produce?

(Speed of sound = 343 m/s)

(Unit = Hz)

**Answer:**

the fundamental frequency produced by the open pipe is **120.78 Hz**

**Explanation:**

Given;

length of the open pipe, L = 1.42 m

speed of sound in air, v = 343 m/s

The length of the open pipe for the fundamental frequency is equivalent to half of wavelength;

[tex]L = \frac{\lambda}{2} \\\\\lambda = 2L[/tex]

The fundamental frequency produced by the open pipe is calculated as;

[tex]f_o = \frac{v}{\lambda} \\\\f_o = \frac{v}{2L} \\\\f_o = \frac{343}{2 \times 1.42} \\\\f_o = 120.78 \ Hz[/tex]

Therefore, the fundamental frequency produced by the open pipe is **120.78 Hz**

What does the Preamble to the Constitution set out as the goals for the government? Which branches of

government address each of the goals of the Preamble specifically?

**Answer:**

Six purposes of government: to form a more perfect union; establish justice; insure domestic tranquility; provide for the common defense; promote the general welfare; secure the blessings of liberty now and in the future.

**Explanation:**

What did you learn about from the NASA's perseverance Rover land on Mars project?

NASA's Mars Pathfinder mission, launched in 1996, put the first free-moving rover—called Sojourner—on the planet. ... Together, these missions have shown scientists that Mars is an active planet that is rich in the ingredients needed for life as we know it—water, organic carbon, and an energy source

A 20g bullet moving at 200m/s hits a bag of sand and comes to rest in 0.011s, calculate the momentum of the bullet just before hitting the bag

**Answer:**

momentum = mass * velocity ... kg•m/s

acceleration = v / t = 200 m/s / 11 ms ... m/s^2

force = mass * acceleration = .02 kg * (200 m/s / 11 ms) N

**Explanation:**

a rugby player passes the ball 5.34 m across the field, where it is caught at the same height as it left his hand. at what angle was the ball thrown if its initial speed was 7.7 m/s, assuming that the smaller of the two possible angles was used

**Answer:**

[tex]31.035^{\circ}[/tex]

**Explanation:**

x = Displacement in x direction = 5.34 m

t = Time taken to travel the displacement

y = Displacement in y direction = 0

u = Initial velocity of ball = 7.7 m/s

g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

Displacement in x direction is given by

[tex]x=u\cos\theta t\\\Rightarrow t=\dfrac{5.34}{7.7 \cos\theta}[/tex]

Displacement in y direction is given by

[tex]y=u\sin\theta t-\dfrac{1}{2}gt^2\\\Rightarrow 0=7.7\sin\theta \dfrac{5.34}{7.7\cos\theta}-\dfrac{1}{2}\times 9.81 (\dfrac{5.34}{7.7\cos\theta})^2\\\Rightarrow 0=7.7\sin\theta-4.905\times \dfrac{5.34}{7.7\cos\theta}\\\Rightarrow 0=7.7^2\sin\theta \cos\theta-4.905\times 5.34\\\Rightarrow 0=7.7^2\dfrac{\sin2\theta}{2}-4.905\times 5.34\\\Rightarrow 0=7.7^2\sin2\theta-4.905\times5.34\times 2\\\Rightarrow \sin2\theta=\dfrac{4.905\times 5.34\times 2}{7.7^2}\\\Rightarrow 2\theta=\sin^{-1}\dfrac{4.905\times 5.34\times 2}{7.7^2}[/tex]

[tex]\Rightarrow \theta=\dfrac{62.07}{2}\\\Rightarrow \theta=31.035^{\circ}[/tex]

**The angle at which the ball was thrown is [tex]31.035^{\circ}[/tex].**

(What is the weight of a 50 kg woman at the top of Jupiter's

atmosphere, where g = 24.8 N/kg? Give your answer in both

newtons and pounds.

**Answer:**

**The correct answer is - 1240 newtons; 278.763 lbs.**

**Explanation:**

HELP - What are some good topics to add to a Pipeline presentation? So yes, a presentation about pipelines, like for example in the US. Have any ideas??

Talk about the jobs that pipeline construction provides to citizens and wether or not it’s effects are ultimately eco-friendly

A turtle crawls at 4.32 m/s to cover the short 3.84 m distance to his food bowl. How long does it take?

Speed=Distance/Time. so you need to do distance/speed to get time. 3.84/4.32= .88888888889 seconds to get to his food bowl

A ray of light is incident on a plane mirror at an angle of 30 degree state the angle of reflection?

**Answer:**

30°

**Explanation:**

*The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.*

∠i = ∠r

so as ∠i = 30°

∠r will also be 30°

HELP PLEASE

60 POINTS

HAVE A GREAT REST OF YOUR DAY PEOPLE :>

**Answer:**

The sun and the stars

**Explanation:**

I hope this helps!

**Answer:**

Northstar & North Pole

**Explanation:**

yyggggggggggggggg

TRUE OR FLASE

12. During sleep the pituitary gland shuts down for the rest of the night.

13. When a person has a nightmare they wake up in a sweat and don't remember

the content of their dream.

**Answer:**

true for first and false for second

**Explanation:**

A child balancing while standing on a chair is demonstrating which type of energy?

A. Potential energy,

B. Nuclear energy,

C. Electrostatic energy,

**Answer:**

Potential Energy

**Explanation:**

A. Potential energy

Select True or False for the following statements about electromagnetic waves. A vertical automobile antenna is sensitive to electric fields polarized horizontally. Ultraviolet radiation causes common sunburn. Radio waves travel in vacuum at a lower speed than the visible light. The sun's radiation is most intense in the visible region. Gamma rays can be produced in transitions of an atomic nucleus from one state to another. Radio waves have wavelengths longer than 1 m. X-rays travel in vacuum at a higher speed than the visible light.

**Answer:**

a) False, b) True, c) true, d) true, e) True, g) False

**Explanation:**

Se pide que analicemos cada expresión, f) true

a) False. La antena vertical tiene cargas eléctricas que se pueden mover en la direccion vertical, una onda electromagnética polarizada horizontal el campo eléctrico esta en la dirección horizontal por lo cual no puede mover los electrones que están en direccional vertical

be) True. La radiación ultravioleta es absorvidad por la melanina del la piel y crea las quemaduras comunes de insolación.

C) False. Todas la ondas electromagnetismo viajan en la misma velocidad c

d) True. La Temperatura del sol es 5800K por lo cual la radiación mas intensa esta en el rango visible

e) True. Los rayos gamma son de muy alta energía, por lo cual se producen en ransicio0n de los núcleos atmicos.

f) True. El rango de frecuencia para las onda de radio va desde 500 Kahoy hasta 110 MHz, por lo tanto el rango de longitudes de onda es

c= lam f

lam = c/f

lam = 3 108/500 103

lam = 6 102 m

lam = 3 108 / 110 106

lam = 2,72 m

los lo ttnato en todo el rango de las frecuecias de radio la lambda> 1 m

g) False. Todas las ondas electromagnéticas viajan a la misma velocidad c( 3 108m/s)

How does the amplitude of the wave change as you get farther from the speaker?

Answer:

The amplitude decreases

Explanation:

From the inverse square law, we know that;

I ∝ 1/d²

Where;

I is intensity

d is distance

Also, we know that;

A² ∝ I

Where A is amplitude

Thus, we can say that;

A ∝ 1/d²

Thus, amplitude is inversely proportional to the distance.

So the larger the distance, the lesser the amplitude and the lesser the distance, the higher the amplitude.

Thus, as you move farther from the speaker the distance increases and therefore the amplitude decreases

cosmic Microwave Background radiation is one piece of supporting evidence for the Big Band Theory. Are these microwaves at the longer or shorter end of the spectrum?

are they long or short?

**Answer:**

it is long.

**Explanation:**

I know the answer but I don't know how to explain it

TRUE OR FALSE

2. Somnambulism is a psychologically induced altered state of consciousness.

3. Unconscious information processing occurs simultaneously on many parallel

tracks.

4. Your subconscious mind is just the "tip of the iceberg" according to psychologists

like Sigmund Freud.

answers: true true false

________ is described as the pulling force transmitted by the means of a

string, a cable, chain. (An example would be a pulley)

Please help I need to turn this today!

**Answer:**

it should be tension for the space

**Answer:**

tension

**Explanation:**

I'm not sure if I'm right but if the example is a pulley a pulley applies tension to a belt or rope or chain to keep it tight

g We have studied diffraction from a single slit, where light is sent through a thin opening. A similar phenomena occurs when light bends around a thin object, like a human hair. Here the width of the hair plays the role of the width of the single slit. Measurements found that when a beam of light of wavelength 632.8 nm was shone on a single strand of hair, the first dark fringe on either side of the central bright spot were 5.22 cm apart. If the screen is 1.25 meters away, how thick was this strand of hair?

**Answer:**

[tex]3.031\times 10^{-5}\ \text{m}[/tex]

**Explanation:**

[tex]y[/tex] = Distance between central maxima and first minimum

m = Order = 1

d = Thickness of hair

[tex]\lambda[/tex] = Wavelength = 632.8 nm

L = Distance between light source and screen = 1.25 m

Width of central maximum is given by

[tex]2y=5.22\times 10^{-2}\\\Rightarrow y=\dfrac{5.22\times 10^{-2}}{2}\\\Rightarrow y=0.0261\ \text{m}[/tex]

Distance between central maxima and first minimum is given by

[tex]y=L\tan\theta_{min}\\\Rightarrow \tan\theta_{min}=\dfrac{y}{L}\\\Rightarrow \tan\theta_{min}=\dfrac{0.0261}{1.25}\\\Rightarrow \theta_{min}=\tan^{-1}0.02088\\\Rightarrow \theta_{min}=1.1962^{\circ}[/tex]

Since [tex]\theta[/tex] is small [tex]\tan\theta_{min}=\sin\theta_{min}[/tex]

[tex]\sin\theta_{min}=\dfrac{m\lambda}{d}\\\Rightarrow d=\dfrac{m\lambda}{\sin\theta}\\\Rightarrow d=\dfrac{1\times 632.8\times 10^{-9}}{\sin1.1962^{\circ}}\\\Rightarrow d=3.031\times 10^{-5}\ \text{m}[/tex]

**The strand of hair is **[tex]3.031\times 10^{-5}\ \text{m}[/tex]** thick.**

What is the name of the theory describing how the lithosphere is broken into segments, or plates, which "float" on the asthenosphere, and associates the interactions between these plates with earthquakes and volcanic activity and the formation of mid-ocean ridges, trenches, mountains, and chains of volcanic islands?

A. Conservation of Matter

B. Big Bang Theory

C. Plate Tectonics

D. Theory of Evolution

**Answer:**

**C. Plate Tectonics**

**Explanation:**

The theory of plate tectonics is when the lithosphere is separated into plates. These plates move over or float over the asthenosphere. The movement of these plates cause earthquakes and can interact with the volcanic activity.

Explain what happens to the movement, energy and arrangement of particles during the process

of distillation.

**Answer:**

Distillation separates a liquid from a solution. For example, water can be separated from salty water by simple distillation. This method works because the water evaporates from the solution, but is then cooled and condensed into a separate container. The salt does not evaporate and so it stays behind.

A 10 kg object moving to the left collides with and sticks to a 3 kg object moving to the right. Which of the following is true of the motion of the combined objects immediately after the collision?

**Answer:**

"Cannot be determined," if that's an answer choice. It depends on the velocities of both objects, since momentum=mass*velocity.

**Explanation:**

Consider a large truck carrying a heavy load, such as steel beams. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a 10 000-kg load sits on the flatbed of a 20 000-kg truck moving at 12.0 m/s. Assume that the load is not tied down to the truck, but has a coefficient of friction of 0.500 with the flatbed of the truck.

A) Calculate the minimum stopping distance for which the load will not slide forward relative to the truck.

B) Is any piece of data unnecessary for the solution?

a) mass of the load.

b) mass of the truck.

c) velocity.

d) coefficient of static friction.

e) all are necessary.

**Answer:**

**A)**

the minimum stopping distance for which the load will not slide forward relative to the truck is **14 m**

**B)**

data that were not necessary to the solution are;

**a) mass of truck** and** b) mass of load**

**Explanation:**

Given that;

mass of load [tex]m_{LS}[/tex] = 10000 kg

mass of flat bed [tex]m_{FB}[/tex] = 20000 kg

initial speed of truck [tex]v_{0}[/tex] = 12 m/s

coefficient of friction between the load sits and flat bed μs = 0.5

A) the minimum stopping distance for which the load will not slide forward relative to the truck.

Now, using the expression

Fs,max = μs [tex]F_{N}[/tex] -------------let this be equation 1

where [tex]F_{N}[/tex] = normal force = mg

so

Fs,max = μs mg

ma[tex]_{max}[/tex] = μs mg

divide through by mass

a[tex]_{max}[/tex] = μs g ---------- let this be equation 2

in equation 2, we substitute in our values

a[tex]_{max}[/tex] = 0.5 × 9.8 m/s²

a[tex]_{max}[/tex] = 4.9 m/s²

now, from the third equation of motion

v² = u² + 2as

[tex]v_{f}[/tex]² = [tex]v_{0}[/tex]² + 2aΔx

where [tex]v_{f}[/tex] is final velocity ( 0 m/s )

a is acceleration( - 4.9 m/s² )

so we substitute

(0)² = (12 m/s)² + 2(- 4.9 m/s² )Δx

0 = 144 m²/s² - 9.8 m/s²Δx

9.8 m/s²Δx = 144 m²/s²

Δx = 144 m²/s² / 9.8 m/s²

Δx = **14 m**

Therefore, the minimum stopping distance for which the load will not slide forward relative to the truck is **14 m**

B) data that were not necessary to the solution are;

**a) mass of truck** and** b) mass of load**

How to calculate this operation? m=10kg and L=2500J/kg? What is the Energy?

I hope you will give me the correct answer because the last answer was too rude. His known by SOD!

**Answer:**

25000J

**Explanation:**

**Formula**** ****:**** ****Q**** ****=**** ****m****×****c****×****Δt**

**Q****=****Heat**** ****energy**** **

**m****=**** ****mass**

**c****=****specific**** ****heat**** ****capacity**

**ΔT**** ****=**** ****change**** ****in**** ****temperature****.**** **

**Q****=****M**** ****x**** ****C**** ****for**** ****this**** ****question****.**** **

Specific heat capacity = 2500 J/Kg

Mass = 10kg

2500 x 10 = 25000 J

A 7.80 g bullet has a speed of 620 m/s when it hits a target, causing the target to move 6.30 cm in the direction of the bullet's velocity before stopping. (a) Use work and energy considerations to find the average force (in N) that stops the bullet. (Enter the magnitude.) N (b) Assuming the force is constant, determine how much time elapses (in s) between the moment the bullet strikes the target and the moment it stops moving. s

**Answer:**

[tex]23796.19\ \text{N}[/tex]

[tex]0.0002032\ \text{s}[/tex]

**Explanation:**

F = Force

s = Displacement = 6.3 cm

m = Mass of bullet = 7.8 g

v = Velocity of bullet = 620 m/s

t = Time taken

Work done is given by

[tex]W=Fs[/tex]

Kinetic energy is given by

[tex]K=\dfrac{1}{2}mv^2[/tex]

Using work energy considerations we get

[tex]Fs=\dfrac{1}{2}mv^2\\\Rightarrow F=\dfrac{1}{2s}mv^2\\\Rightarrow F=\dfrac{1}{2\times 0.063}\times 7.8\times 10^{-3}\times 620^2\\\Rightarrow F=23796.19\ \text{N}[/tex]

**The average force that stops the bullet is [tex]23796.19\ \text{N}[/tex].**

Force is given by

[tex]F=m\dfrac{v-u}{t}\\\Rightarrow t=m\dfrac{v-u}{F}\\\Rightarrow t=7.8\times 10^{-3}\times \dfrac{620}{23796.19}\\\Rightarrow t=0.0002032\ \text{s}[/tex]

**The time taken to stop the bullet is [tex]0.0002032\ \text{s}[/tex].**

Which task would be impossible without radio waves ?

**Answer:**

*checking your e-mail on your computer using a coffee's shop WiFi. *No need radio waves for this.

**Explanation:**

Because you are only checking it, nothing else.

Yup exactly what the other person said ! ^^i was gonna say the same

name and explain two sleeping disorders

insomnia and night terrors

Using the American Engineering system of units (AES), a) Calculate the weight of a 170.5 lbm person on the surface of the earth, where the local acceleration due to gravity is 32.174 ft/s2 . Report your answer in pound-force, lbf. b) What would be the weight of a 170.5 lbm astronaut on the moon, where the local acceleration due to gravity is 5.32 ft/s2 . Report your answer in pound-force, lbf.

**Answer:**

**a) **the weight of the person is **170.5 lbf**

**b) **weight of the astronaut on the moon is **28.2 lbf**

**Explanation:**

Given the data in the question;

a)

we know that;

weight on the surface of the earth = m[tex]g_{earth[/tex]

given that m = 170.5 lbm and g = 32.174 ft/s²

we substitute

weight on the surface of the earth = 170.5 lbm × 32.174 ft/s²

= 5485.667 lbm-ft/s²

1 lbf = 32.174 lbm-ft/s²

so

weight on the surface of the earth = (5485.667 / 32.174) lbf

weight on the surface of the earth = **170.5 lbf**

Therefore, the weight of the person is **170.5 lbf**

b)

given that;

weight on the surface of the earth = m[tex]g_{moon[/tex]

m = 170.5 lbm and g = 5.32 ft/s²

weight on the surface of the earth = 170.5 lbm × 5.32 ft/s²

= 907.06 lbm-ft/s²

1 lbf = 32.174 lbm.ft/s²

weight on the surface of the earth = ( 907.06 / 32.174 ) lbf

weight on the surface of the earth = **28.2 lbf**

Therefore, weight of the astronaut on the moon is **28.2 lbf**

Look at these images from the Lascaux caves. These works are most similar to Native American ________.
What is your thoughts on the Daybell case7-8 sen.
Dalle note 3 green 1 we ame 7 vel maps on abier med up and make one of the
Who did Voltaire defend?
All of these passages would have the same generaltone, except:O A. a note written to a friend.O B. a front-page news article.O C. an e-mail to your best friend.O D. a blog post.
v/8=2It's a one-step equation. How do I solve it?
Restrictions on the press Rigged elections Rule by violence and brutalityThe above characteristics relate most to which government type below?-Democracy-Theocracy-Dictatorship-Anarchy
What is the total interest paid on an $185,000 loan at 6.25% APR over 15 years (monthly payments)?
This next paragraph will focus on high schools that require students to complete community service.Strong: ClaimWeak: Not a Claim
Select the equation that has a = 1 1/2 as its solution.
Bellue Incorporated manufactures a single product. Variable costing net operating income was $92,400 last year and its inventory decreased by 3,100 units. Fixed manufacturing overhead cost was $1 per unit for both units in beginning and in ending inventory. What was the absorption costing net operating income last year
sentences with the word: - Anti-federalist I need help plz
Part of the population of 6,000 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 9 of them are infected. How many elk are likely to be infected?
1000 more than the smallest 4 digit number
Write a SELECT statement that returns these four columns from the Products table: The list_price column A column that uses the FORMAT function to return the list_price column with 1 digit to the right of the decimal point A column that uses the CONVERT function to return the list_price column as an integer A column that uses the CAST function to return the list_price column as an integer Use column aliases for all columns that contain a function.
5._____ is a line of writing that has a musical flow and rhythm.A. A stanzaB. An odeC. An elegyD. A verse
Enrique Industries purchased and consumed 50,000 gallons of direct material that was used in the production of 11,000 finished units of product. According to engineering specifications, each finished unit had a manufacturing standard of five gallons. If a review of Enrique's accounting records at the end of the period disclosed a material price variance of $5,000U and a material quantity variance of $3,000F, what is the actual price paid for a gallon of direct material
Adrianna needs to cut a pan of brownies into pieces. She cuts 6 even columns and 3 even rows into the pan. How many brownies does she have?
Given the net below calculate the surface area. The sides measure 6 by 4, the top and bottom measure 8 by 6 and the front and back are 8 by 4.
Which of the following represents the main difference between regional and urban planning?Enforceability Location and scopeRigidity Sustainability