PLS ANSWER FAST WILL GIVE BRAINLY!!!


In order for a roller coaster to work, why does the hill the cart climbs need to be higher than the top of the loop?

Answers

Answer 1

Answer:

The concept of potential energy, often referred to as energy of position, is very simple: As the coaster gets higher in the air, gravity can pull it down a greater distance. ... The potential energy you build going up the hill can be released as kinetic energy — the energy of motion that takes you down the hill.

Answer 2

Potential energy, also known as energy of position, is a pretty straightforward idea. As the roller coaster rises in the air, gravity has a greater ability to pull it down.

What does the hill the cart climbs need?

An easy illustration involves a stopped car at the summit of a hill. The car drives faster as it goes down the hill, which results in an increase in kinetic energy and a decrease in potential energy. The vehicle changes kinetic energy into potential energy as it ascends the hill.

They are higher up at the top of the hill, thus they have more potential energy. Moving down a slope transforms potential energy into kinetic energy, while moving up a hill transforms kinetic energy into potential energy.

Therefore, You can release the potential energy you accumulate while climbing a hill as kinetic energy, which is the energy of motion that propels you down the hill.

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Related Questions

Which has greater density- 1 kg of water or 10kg of water?

Answers

Answer:

I believe that it will be 10kg of water

Explanation:

Because a measure of the amount of information on a storage medium (tape or disk). For magnetic tape it is the amount of information recorded per unit length of tape (bits per inch or millimeter); for a disk, a fixed number of bits per sector, sectors per track, and tracks per disk.

The density in both the case will be equal, just the difference will be in the volume they occupy.

What is density?

In practice, density is the weight of a substance per unit volume. Water has a density of about 1 gram per milliliter, but this varies depending on temperature and whether or not substances are dissolved in it. Because ice is less dense than liquid water, it floats in your glass.

This allows many aquatic organisms to survive the winter. If ice were more dense than water, it would continue to freeze and sink until the entire lake was frozen.

Any amount of water has the same density. Whereas one gram of water has a volume of one milliliter, ten grams have a volume of ten milliliters.

Thus, the density will be same.

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Which of the following shows constant velocity?

Answers

Answer:cool

Explanation:

cool cool cool cool

Your personal hygiene is more important to avoid you becoming ill, more so than spreading germs.
True
False

Answers

I think it’s False, because spreading germs can impact and spread way easier than having a good hygiene ( but still wash your hand!)

ASAP! AWARDING BRAINLIEST see attached photo.

Answers

Answer:d

Explanation:

Answer:

I believe the answer would be B

What type of element is hydrogen?

Answers

Answer:

Hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.

Explanation:

Answer:

It is a chemical element

Explanation:

What happens as a bungee jumper gets closer to Earth's surface?
A. Gravity decreases
B. His mass increases
C. Air resistance decreases
D. His velocity increases

Answers

Answer:

Velocity increases

Explanation:

Gravity is constant, except when discussing "apparent weight"

Mass is constant here

Air resistance would actually increase

Velocity DOES increase, because Earth is pulling the jumper downwards with an unbalanced force. The unbalanced force creates acceleration (-9.81 m/s^2), which means his velocity is increasing constantly.

photo attached: please help!!!

Answers

Answer:

The center of mass changes

Explanation:

The higher the center of mass the more likely things are to topple over but the lower it is the more likely to stay put when all 4 wheels are down .

The box in the right diagram takes 1.1 sec to strike the floor after being released from rest. Find the landing speed of the 0.3-kg box, the tension of the rope, and moment of inertia of the pulley.

Answers

Answer:

dhrh4b

Explanation:

hours rbergrehebbeb3j3

nsiz. hs aj. he zj xuw x

The temperature of one substance is 90 degrees F and another
substance is 50 degrees F. If they are placed close together, what will
happen

Answers

Answer:

Substance that is 90 degrees will lose energy and the substance that is 50 degrees will gain energy

Explanation:

because that is how energy work duhhhhh

Which type of electromagnetic waves should the scientists' cameras use in order to safely capture images of the sea turtles at night?
A
infra-red
B
micro
С
ultra-violet
D
visible spectrum

Answers

Answer:

D :} if not that is A  that what my thing say where correct

Explanation:

Answer:

A.) infra-red

Explanation:

Hey guys I really need help can you please come and help me on struggling please help I choose one but that could be wrong

Answers

Answer:

It's solar because if you leave a tv on for longer it gets hot and obviously it produces light and sound so, by subject of elimination, it's solar.

Explanation:

Answer:

I think solar because the thermal and sound and light are like a part of the tv (sorry for my English)

Hey guys I need help please help me what do y’all think it is I need help And I’m struggling

Answers

................Solar
Solar Energy, yeah thats it

I’m a god, a planet, and I measure heat. What am I?

Answers

mercury??????? my only guess

Mercury is that it?                        

Pls help it’s dues today


Sam studied kinetic and potential energy by observing apples on a tree during a field investigation. Explain what type of energy these apples have.

Answers

Answer: Gravitational Potential Energy

Explanation:

A 780 kg vehicle accelerates at 4 m/s2. How much force is the car generating?

Answers

Explanation:

Given

mass (m) = 780 kg

acceleration (a) = 4 m/s²

Force (F) = ?

We know

F = m * a

= 780 * 4

= 3120 Newton

The car is generating 3120 Newton force.

Hope it helps :)

hehe i hate being a single girl....what physical properties dose europium have

Answers

Answer:

Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.

Explanation:

the density is 5.24 grams per cubic centimeter.

What is the most accurate way to check your heart rate (bpm)? Help me?

Answers

The neck or wrist ps side of the neck

Answer:

Count your pulse for 60 seconds.  

Explanation:

This isn't physics, this quesiton should be marked in health.

Clothes in a dryer rub together and begin clinging to each other

A. Friction
B. Conduction
C. Induction​

Answers

Answer:

Conduction

Explanation:

Because they touch lol

Answer:

Conduction

Explanation:

Because induction is the pass of electricity without contact and conduction is the complete opposite

What must be your average speed in order to travel 350 km in 5.15 h? *
66.0 km/h
67.0 km/h
68.0 km/h
69.0 km/h

Answers

v= s/t

=
5.15/ 350

=68.0 km/h

Your student desk has been in the room for many hours, it is at thermal equilibrium with the room?
Which part of your desk is colder: the wood or the metal? Why?

Answers

Answer:

metal because A: In general, metals feel colder or hotter to the touch than other materials at the same temperature because they're good thermal conductors. This means they easily transfer heat to colder objects or absorb heat from warmer objects. Thermal insulators like plastic and wood don't transfer heat as easily.

Explanation:

what is reflection of light ? Which type of surface is required for a regular reflection​

Answers

Answer:

MIRROR

Explanation:

Answer:

reflection of light is the bouncing back of light rats when it falls on a smooth surface or polish surface.

what determines the color of light?

1. wavelength
2. wave height
3. wave speed
4. wave amplitude

Answers

answer: wave length
(Please Mark brainly or like I’m trying to get points lol!)

Answer:

wave length

Explanation:

What special component would you need to use in a thermostat so that it can respond to changes in temperature

Answers

Answer:

A thermistor is an electrical device, a thermally sensitive semiconductor resistor, whose resistance changes in response to temperature. Thermistors are made in a variety of ways including thin films (SiC).

Explanation:

hope it helps

Write S if the given quantity is scalar and V if the quantity is a vector

_100° Celsius
_50 m/s²
_300 s
_250 m/s, northwest
_1m, to the right
_10 cm,upwards
_525 600 mins.
_90 km/h,east
_5 000 kg
_1.5 L

Answers

Answer:

1. Scalar_100° Celsius

2. Vector_50 m/s²

3. Scalar_300 s

4. Vector_250 m/s, northwest

5. Vector_1m, to the right

6. Vector_10 cm, upwards

7. Scalar_525 600 mins.

8. Vector_90 km/h,east

8. Scalar_5 000 kg

10. Scalar_1.5 L

Explanation:

A scalar quantity can be defined as a quantity that has magnitude but no direction. Some examples of scalar quantities are speed, mass, temperature, volume, length, etc.

On the other hand, a vector quantity has both magnitude and direction. Some examples of vector quantities are acceleration, velocity, displacement, etc.

1. Scalar_100° Celsius (Temperature).

2. Vector_50 m/s² (Acceleration).

3. Scalar_300 s (Time).

4. Vector_250 m/s, northwest (Velocity).

5. Vector_1m, to the right (Displacement).

6. Vector_10 cm, upwards (Displacement).

7. Scalar_525 600 mins. (Time).

8. Vector_90 km/h,east (Velocity).

8. Scalar_5 000 kg (Mass).

10. Scalar_1.5 L (Volume).

What is the momentum of a 750 kg car traveling at a velocity of 25 m/s north?

Answers

Answer:

18750 kg-m/s

Explanation:

Momentum = mass x velocity 

Answer:

18750 kg-m/s

Explanation: Momentum = mass x velocity 750x25 = 18750 kg-m/s

Can you brainlist

briefly explain transport of oxygen by blood ​

Answers

Answer:

Once oxygen has entered the blood from the lungs, it is taken up by haemoglobin (Hb) in the red blood cells. ... Each molecule of haemoglobin can hold four oxygen molecules. It is haemoglobin that carries the oxygen as it is transported around the body in the blood.

Explanation:

A rubber rod with a negative 4.0 C (-4.0 x 10-6 C) charge is 10 cm east of a pith ball with a positive charge of 5.0 C. A plastic rod with a positive 2.0 C charge is 5.0 cm north of the pith ball.

Answers

552. cm eastthat's the answer

What is the velocity of a 24 kg object with 108 kg m/s of momentum?

A) 3 m/s
B) 4.5 m/s
C) 6 m/s
D) 84 m/s

Answers

Answer:

The velocity of the object is 4.5 m/s

Explanation:

Momentum is equal to mass times velocity.  We can rearrange that relationship to say that velocity is equal to momentum divided by mass.  With that we can say:

v = 108 kg m/s / 24kg

v = (108 / 24) m/s

v = 4.5 m/s

What is the frequency of a raido wave with a wavelength of 1.0 mm?

Answers

Answer:

3×10^6

Explanation:

frequency is the speed of light ( c) which is a constant number divided the wavelength

f = 3×10^6 / 1.0

Calculating net force

Answers

Answer:

0N.

Explanation:

Net force is the sum total of forces acting on an object.

The Fn which is the net force is

450+ (-250) + (-600)+ 600+ 0 + 250 + (-450)

= 450-250+(-600)+ 600+0+250-450

= 0N

The net force is 0

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