A school bus moves slower and slower. Using what you have learned about forces, explain why the bus moves slower and slower.

Answers

Answer 1

Explanation:

the weight of the people inside the bus


Related Questions

a car on a circular track accelerates from rest. the radius of the track is 0.30km and the magnitude of the constant angular acceleration is 4.5x10-3 rads/s squared. find the centripetal acceleration of the car when it has completed half of a lap. ​

Answers

Answer:

The centripetal acceleration of the car is 50.4 m/s²

Explanation:

Given;

radius of the track, r = 0.3km = 300 m

constant angular acceleration, α = 4.5 x 10⁻³ rad/s²

during half of a lap, θ = π

Determine time of motion

θ = ωt + ¹/₂αt²

π = 0 + ¹/₂αt²

t² = 2π / α

t² = ( 2 x 3.142) / (4.5 x 10⁻³)

t² = 1396.44

t = √1396.44

t = 37.369 s

Determine the angular velocity

[tex]\omega_f = \omega_i + \alpha t\\\\\omega_f = 0 \ + \ 37.369*4.5*10^{-3}\\\\\omega_f = 0.168 \ rad/s[/tex]

Determine the centripetal acceleration of the car

[tex]\alpha _c = \omega^2 r\\\\\alpha _c = 0.168*300\\\\\alpha _c =50.4 \ m/s^2[/tex]

Therefore, the centripetal acceleration of the car is 50.4 m/s²

What is the speed of a car that moves 400 feet in 4 seconds?

Answers

Answer:

272.727mph(miles per hour)

Explanation:

Describe the position and velocity of the object based on the motion map.

Answers

Answer:

velocity is 1 m/s

Explanation:

Answer:

Include: The object starts away from the origin.

The object moves toward the origin at a constant velocity.

The object stops for one second.

The object moves away from the origin at a greater constant velocity.

Explanation:

what does the slope of the line represent on a velocity vs time graph

Answers

Answer:

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero, then the slope is zero. If the acceleration is positive, then the slope is positive

Explanation:

How much work is done by a person who used a force of 27.5N to move a grocery cart 12.3

Answers

Answer:

workdone = force x displacement

= 27.5 x 12.3

= 338.25 J

What is the net force required to accelerate a 5.3 kg box at a rate of 4.2 m/s^2?

Answers

Answer:

The answer is 22.26 N

Explanation:

The force acting on an object given the mass and acceleration we use the formula

force = mass × acceleration

From the question

mass = 5.3 kg

acceleration = 4.2 m/s²

We have

force = 5.3 × 4.2

We have the final answer as

22.26 N

Hope this helps you

Steve stands on a scale and it reads 65 kilograms. What is his weight in Newtons? *

Need help

Answers

Answer:

It would be 637.43 Newtons

Explanation:

Because

1 Kilogram:

The kilogram is defined as being equal to the mass of the International Prototype Kilogram (IPK), which is almost exactly equal to the mass of one liter of water.

1 Newton:

1 Newton in Earth gravity is the equivalent weight of 1/9.80665 kg on Earth. This is derived using Newton's second law f=ma and assuming Earth gravity of 9.80665 m/s2. 1 N (Earth) = 0.101971621297793 kg.

PLZZZ
suppose you increase the voltage in the coils of the solenoid of an electromagnet. what happens the the electromagnet?

A. its strength becomes less

B. its strength decreases then increases

C. its strength becomes greater

D. its strength remains the same

Answers

Answer:

Its strength becomes greater

Explanation:

Suppose you increase the voltage in the coils of the solenoid of an electromagnet. the electromagnet strength becomes greater. Hence option C is correct.

What is Electromagnet ?

An electromagnet is a type of magnet where an electric current creates the magnetic field. The wire that makes up an electromagnet is often twisted into a coil. A magnetic field is produced by a current flowing through the wire and is focused in the hole in the centre of the coil. When the current is cut off, the magnetic field vanishes. In order to create a stronger magnet, the turns of the wire are frequently twisted around a magnetic core composed of a ferromagnetic or ferrimagnetic material, such as iron.

An electromagnet's key benefit over a permanent magnet is the ability to swiftly alter the magnetic field by adjusting the amount of electric current flowing through the winding. Contrary to a permanent magnet, however

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A speeding Thunderbird left skid marks on the road that were 76.7 m long when it came to a stop. If the acceleration of the car was -10 m/s2, how fast was the car initially going?

Answers

Answer: 39.2 m/s

Explanation:

You can use the kinematic equation:

[tex]v_f^2=v_i^2+2a*d[/tex]

We know the final velocity because it says it came to a stop. So now all we gotta do is plug in.

[tex]0^2=v_i^2+2(-10)(76.7)\\v_i^2=1,534\\v_i=\sqrt{1534} \\=39.166 m/s[/tex]

PLS ANSWER ASAP!! I PROMISE I'LL GIVE YOU BRAINLIEST!!

A water-skier is pulled behind a boat by a rope that is at an angle of 13° and has a tension of 490 N. The water-skier has a mass of 49 kg.

What are the magnitudes of the x- and y- components of the tension?

What is the normal force acting on the skier?

Answers

Answer:

normal force= 480.2 x component=477.4  y component= 110.4

Explanation:

I'm sorry I just did this today in class but i think normal force has to be equal to mg or the mass * gravity of the person and that would be 480.2 newtons. I multiplied 9.8 (gravity) by the mass of 49g

I think for the x and y components you can make a triangle with the angled string and then use sohcahtoa to solve for the tension. I used cos(13) = x/490 to solve for x component and then I used the pythagoran theroem to get the remaining side which would be : a^2 + 477.4^2 = 490^2

hope this can help and that it is correct. good luck

The magnitudes of the x- and y- components of the tension is 477.44N and 110.23N

The normal force acting on the skier is 480.2N

The magnitude of the x- and y- components of the tension is expressed as:

x = Tcos 13°y = T sin  13°

Given the following

Tension T = 490N

x = 490 cos13° = 477.44N

y = 490sin13° =  110.23N

Hence the magnitudes of the x- and y- components of the tension is 477.44N and 110.23N

The normal force acting on the skier is equal to the weight.

N = W = mg

N = W = 49 * 9.8

N = W = 480.2N

Hence the normal force acting on the skier is 480.2N

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When a chocolate bar is a solid does it have low thermal energy?

Answers

Answer:

Tiny particles in solids, liquids and gases are always in motion. It is the motion of particles that creates a form of energy called thermal (heat) energy that is present in all matter. The particles in solids are tightly packed and can only vibrate. Matter in its solid state has the lowest amount of thermal energy (for that type of matter). Because solids have less thermal energy than liquids or gasses, the atoms in their solid state move very little.

Explanation:

So yes, chocolate has VERY low thermal energy

Object B has a mass of 10 kg and is moving at a velocity of 2.2 m/s. So object B’s momentum is ___ kg •m/s

Answers

Answer:

22

Explanation:

becuase is you do 10kg times 2.2= 22m/s

Object B has a mass of 10 kg and is moving at a velocity of 2.2 m/s. So object B’s momentum is 22 kg.

What is momentum in real life?

The momentum of an object is given with the aid of the made from its mass and the rate. this may be understood genuinely with the help of an instance. A Cricket ball is heavier than a tennis ball. If each of the balls is thrown at the same speed. Greater pressure is required to forestall the cricket ball.

What is the momentum of an object?

Momentum is the amount of movement and is compounded by using the quantity of the problem moved and the velocity with which it moves. The item has a tendency to be in movement and therefore is a vector amount. it's far determined by using the made from the mass of the object and its velocity.

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Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. He turned the car one more time and went 35 meters east. His car was 15 meters from the starting line. This took 5 seconds.

What is the car’s velocity?

Answers

Answer:

3 m/s east

Explanation:

I took a test a got it right

Answer:

3 m/s east

Explanation:

what is an ammeter used for ?How can it be connected to make a measurement for a circuit component​

Answers

Answer:

See the explanation below.

Explanation:

An ammeter is an instrument for measuring electrical currents in a circuit. To measure the current the ammeter must be connected in series with the circuit so that the current flows through it. At present time there are modern instruments such as the amperimetric clamp, which also serves to measure currents in a more easy way

what is the acceleration of an object that entered of a force 200 N if the object mass was 100 kg?

Answers

Answer:

The answer is 2 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

where

f is the force

m is the mass

From the question we have

[tex]a = \frac{200}{100} \\ [/tex]

We have the final answer as

2 m/s²

Hope this helps you

How does the earthquake magnitude work

Answers

Answer:

The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. Adjustments are included in the magnitude formula to compensate for the variation in the distance between the various seismographs and the epicenter of the earthquakes.

Explanation:

have a good day

Which of the following substance used to selectively absorb certain frequencies of light and transmit or reflect the rest; responsible for object's colour?
A. Reflection
B. Refraction
C. Pigment
D. Tyndall scattering​

Answers

Answer:

[tex]D. \: Tyndall \: scattering.[/tex]

What happens to the temperature of a substance while it is changing state?
A. It increases first and then decreases.
B. It decreases first and then remains constant.
C. It varies randomly.
D. It remains constant.

Answers

Answer:

During a phase change, the temperature will remain constant. Obviously all the heat is used in phase transformation. So the correct answer should be D. Forgive me if I'm wrong but I hope this helps!

The temperature of a substance remains constant while it is changing state. Thus, the correct option is D.

What is the relation between state and temperature of substance?

Temperature has a direct effect on whether a substance exists in states as a solid, liquid, or gaseous substance. Substances can change their phase often because of a temperature change of the substance. At very low temperature conditions, most of the substances are solid, as the temperature of the substance keeps on increasing, then they become liquid and at very higher temperatures still, they become gaseous substances.

The temperature of a substance remains constant while it is changing its state.

Therefore, the correct option is D.

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What do x-direction and y-direction refer to when discussing an object's motion

Answers

Answer:

The x-direction and y-direction refer are used to refer to the location of an object as well as to the components of the motion of the object in a two dimensional space

Explanation:

In physics, in the analysis of the motion of an object in two dimensional space, the relative location of the object is specified using the measured distances in the x-direction from the y-axes and y-direction from the x-axes

In order to accurately specify the motion of the object, information regarding the component of the motion of the object in the x-direction and the component in the y-direction are required

What is one characteristic of the convection inside the sun?

- Cells of circulating gasses called granules
- Thick clouds of dust and gasses
- Large cells of rising and sinking gasses
- Nuclear reactions between hydrogen atoms

Answers

Answer: 3- Large cells of rising and sinking gasses

Explanation: Hotter gas coming from the radiative zone expands and rises through the convective zone. It can do this because the convective zone is cooler than the radiative zone and therefore less dense. As the gas rises, it cools and begins to sink again. As it falls down to the top of the radiative zone, it heats up and starts to rise. This process repeats, creating convection currents and the visual effect of boiling on the Sun's surface.

what would you want the after life to be like. examples are heaven and hell ,reincarnation ,eternal darkness , reliving your live but different choices or become a ghost,

Answers

Answer:

i would want to be a dog or a cat

Explanation:

there just funny

You testify as an expert witness in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill (Fig. 6-25). You find that the slope of the hill is u " 12.03, that the cars were separated by distance d " 24.0 m when the driver of car A put the car into a slide (it lacked any automatic anti-brake-lock system), and that the speed of car A at the onset of braking was v0 " 18.0 m/s.With what speed did car A hit car B if the coefficient of kinetic friction was (a) 0.60 (dry road surface) and (b) 0.10 (road surface covered with wet leaves)

Answers

Answer:

A) 12.08 m/s

B) 19.39 m/s

Explanation:

A) Down the hill, we will apply Newton’s second law of motion in the downward direction to get:

mg(sinθ) – F_k = ma

Where; F_k is frictional force due to kinetic friction given by the formula;

F_k = (μ_k) × F_n

F_n is normal force given by mgcosθ

Thus;

F_k = μ_k(mg cosθ)

We now have;

mg(sinθ) – μ_k(mg cosθ) = ma

Dividing through by m to get;

g(sinθ) – μ_k(g cosθ) = a

a = 9.8(sin 12.03) - 0.6(9.8 × cos 12.03)

a = -3.71 m/s²

We are told that distance d = 24.0 m and v_o = 18 m/s

Using newton's 3rd equation of motion, we have;

v = √(v_o² + 2ad)

v = √(18² + (2 × -3.71 × 24))

v = 12.08 m/s

B) Now, μ_k = 0.10

Thus;

a = 9.8(sin 12.03) - 0.1(9.8 × cos 12.03)

a = 1.08 m/s²

Using newton's 3rd equation of motion, we have;

v = √(v_o + 2ad)

v = √(18² + (2 × 1.08 × 24))

v = 19.39 m/s

A man jumps from a 45 m cliff into a large body of water. How long will he fall before he enters the wate

Answers

Answer:

about 2.5 seconds depending on if he jumps up and out or if he jumps out.

Explanation:


A truck drives 80 km in 2 hours. The truck stops for 1 hr and continues driving for 100
km in 2.5 hrs. What was the truck's average speed for the entire trip? (round to the
neared 10th

Answers

Answer:

It Crashed Because it was speeding LOL

Explanation:

It was speeding so cops put spices and truck Crashed

HEY CAN ANYONE PLS ANSWER DIS!!!!!!!!

Answers

Answer:

Distillation

Explanation:

Answer:

distillation is correct

Explanation:

hope it helps

Help, please
and explain

Answers

We could tell a force is acting on an object if the object is being pushed, pulled, or moved in any way

Why are ions formed?
Group of answer choices

A.Because atoms have the same number of protons and electrons

B. Because atoms want 8 valence electrons

C. To make our lives difficult

D. Because atoms gained neutrons

Answers

Answer:

B. Because atoms want 8 valence electrons

Explanation:

Ions are formed because atoms want 8 valence electrons. Most atoms attain stability when they 8 electrons in their outermost shell.

This is the reason why they form ions.

To form ions, atoms will gain or lose electrons or share them. This loss, gain, or sharing of electrons often lead to an atom become stable. One group of atoms, the noble gases, do not form ions readilyThey have complete numbers of electrons in their valence shells. So they do not gain, lose or share their electrons to form ions unlike the others.

16. Evaluate the expression below if
a = -8, b = 17, and c = 21
az - (b + c)

Answers

do u have to find z? how do yk what z is?

Answer:

(if for solving for z)

z= -4.75

Explanation:

az-(b+c) [set equal to zero]

az-(b+c)=0

+(b+c) +(b+c)

az = (b+c) [now substitute the variables]

-8z = (17+21)

-8z = 38 [divide both sides by -8 to get z alone]

z = -4.75

How does using a ramp make work easier when loading a piano onto a truck three feet above the ground?
It allows a larger force to be applied over a shorter distance.
It allows a larger force to be applied over a longer distance.
It allows a smaller force to be applied over a shorter distance.
It allows a smaller force to be applied over a longer distance.

Answers

Answer:

It allows a smaller force to be applied over a longer distance.

Explanation:

A ramp is an example of an inclined plane that makes the movement of object   easier above the ground level or higher surfaces.

In the given example, the sloping part of the ramp will support the weight of the piano as it moves up the slope and it will allow less force to be applied to move the piano above but the distance would be longer as the slant length or slope is the longest distance.

Hence, the correct answer is "d".

Answer:

D. It allows a smaller force to be applied over a longer distance.

Explanation:

A Force Of 15 N Is Applied To A Spring, Causing It To Stretch 0.3 M. What Is The Spring Constant For The Particular Spring

Answers

The spring constant is the number of Newtons needed to cause an extension of 1metre. So in this case it is 15/0.3 = 50 N/m

Answer:

50 on edge

Explanation:

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Identify the following series as arithmetic, geometric, both, or neither. BRAINLIEST TO FIRST PERSON WHO IS CORRECT What is the difference between a species, a population,and a community Read the plot summary below and answer the question that follows. Carolina and Erica were two sisters traveling to a tiny island in the Caribbean for their summer vacation. When they arrived on the island, they discovered that they would be staying in a beautiful cabin nestled in the wild jungle. One night, Carolina awoke to a frightening growl coming from outside her bedroom window. As it grew louder, she nervously called to her sister. All of a sudden, her window flew open, and she yelped with fear. To her surprise, her sister popped into view, giggling and saying, "Gotcha!" After a moment of shock passed, Carolina had to join in the laughter with her sister. They spent the rest of the summer having fun exploring the surrounding jungle, enjoying their sisterly bond.Which of the following could most likely be labeled as the climax of the plot summarized above?when Carolina's window flew openwhen the sisters arrived at their cabinwhen the sisters traveled to the islandwhen they explored the island junglesplz help assap plz Where might you find a vehicle's VIN number? Select all that applyA. on the front dashboard and inside the wheel wellB. etched into the hood and the trunk of the carC. on the rear bumper and the rear bumperD. outside the wheel well and the rims of the car Please, can any one help freedom in this period from slavery?a. emancipation b. tariffc. free stated. missouri compromise 1.AN EXAMPLE OF A LIGHT INTENSITY ACTIVITY ISSingle choice.WALKING BRISKLYSWIMMING LAPSGOLFING WITH A CART2.AN EXAMPLE OF A VIGOROUS ACTIVITY ISSingle choice.LIGHT STRETCHINGRUNNING3.AN EXAMPLE OF MODERATE INTENSITY ACTIVITY ISSingle choice.DOUBLES TENNISLIGHT STRETCHING4.WHAT PERCENT OF AMERICANS ARE OVERWEIGHT OR OBESE?Single choice.10%30%65%90%5.THE RECOMMENDED AMOUNT OF MODERATE INTENSITY PHYSICAL ACTIVITY FOR YOUNG PEOPLE ISSingle choice.30 MINUTES PER DAY60 MINUTES MOST DAYS OF THE WEEK2 HOURS A WEEK6.PHYSICAL ACTIVITY CAN HELP YOUSingle choice.LOOK BETTERRELIEVE TENSIONCONTROL YOUR APPETITEALL OF THE ABOVE7.WHICH IS LINKED TO OBESITY AND OVERWEIGHT?Single choice.Immersive ReaderINCREASE STRAIN ON MUSCLES AND JOINTSPOOR SELF IMAGEOption 3INCREASE RISK OF HIGH BLOOD PRESSURE AND DIABETESALL OF THE ABOVE Early American leader designed the articles of confederation to create a national government that: (I think its either b or d but idk) Which hemisphere was more greatly impacted by the Columbian Exchange, the Americas or Afro-Eurasia?long answer preferred who was Joesph Stalin? Can someone explain this to me!!! Will give the brainliest!!!! Which word best completes the sentence?Select the word from the drop-down menu.Just as the queen in the fairy tale ____________the uprising of her unhappy subjects, Mom put an end to my sisters' attempt to not eat their lima beans about abraham lincoln what is the value of x help plz Over time, scientist provide plenty of evidence to support the hypothesis About the cell theory . What instrument enabled them to provide this evidence? True or false? A theorem is a statement that can be easily proved using acorollaryA. TrueB. FalseThe answer is B, False Which statement best states a theme in Gumption?The feeling of powerlessness can inspire acts of bravery.People must think of others before thinking of themselves.Hard work and perseverance will pay off over time.People are often rewarded by society for doing what is right. what do you call a member of congress who intrduces a bill What are the two main types of cells, and how do we classify them?