Is a roller coaster moving downhill is a potential or kinetic energy?

Answers

Answer 1

Answer: hey there I see you need help well I am here to do just that, so your answer would be kinetic energy because potential energy is when her is sitting on the top of the hill so the correct answer is :Kinetic Energy

Hope this helps if so why not hit that brainllest answer button ;)

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Based on the girls experiment, what is a chemical property of iron? (1c)

Answers

Explanation: A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust. The more general term for rusting and other similar processes is corrosion.

Answer:

capable of combining with oxygen and becoming iron oxide

Explanation:

The flat area surrounding the mouth of the Mississippi River is covered with rich sediments important to farming in this area. These sediments are deposited at a rate of 80,000 tons per year. This area surrounding Mississippi River is called the

Answers

Answer:

A) Delta.

Explanation:

The options of this question are the next ones:

A) delta. B) plains. C) plateau. D) low lands.

The flat area surrounding the mouth of the mississippi river is known as Delta, or the Delta Basin of the Mississippi river, and the entire area was formed over the curse of 5,000 years by the deposition when the sediments are being put into this delta.

commonly referred to as the Mississippi River DELTA. technically, it's an estuary.

The specific heat capacity of a substance is the amount of energy associated with doing which of the following to 1kg of the substance?

Answers

Answer:

Raising its temperature by $1^(\circ)C$

Explanation:

The specific heat capacity of a substance is defined as the amount of energy needed to raise the temperature of 1 kg of a substance by $1^(\circ)C$ .

The specific heat capacity of a substance essentially tells us how much energy is needed to heat the substance: the larger it is, the more energy is needed. The amount of energy needed to increase the temperature of a substance is given by

$Q=mC_s \DeltaT$

where

m is the mass of the substance

Cs is the specific heat capacity

$\Delta T$ is the temperature variation of the substance

Answer:

Raising its temperature by 1 C

Explanation:

A P E X

What are three methods of heat transfer and what are some examples

Answers

Answer: I am studying heat transfer and have learned there are three kinds of heat transfer: conduction, convection, and radiation. Some examples are:

Conduction:

Touching a stove and being burned

Ice cooling down your hand

Boiling water by thrusting a red-hot piece of iron into it

Convection:

Hot air rising, cooling, and falling (convection currents)

An old-fashioned radiator (creates a convection cell in a room by emitting warm air at the top and drawing in cool air at the bottom).

Radiation:

Heat from the sun warming your face

Heat from a lightbulb

Heat from a fire

Heat from anything else which is warmer than its surroundings.

Explanation: A good example would be heating a tin can of water using a Bunsen burner. Initially the flame produces radiation which heats the tin can. The tin can then transfers heat to the water through conduction. The hot water then rises to the top, in the convection process.

The atmosphere would be another example. The atmosphere is heated by radiation from the Sun, the atmosphere exhibits convection as hot air near the equator rises producing winds, and finally there is conduction between air molecules, and small amounts of air-land conduction.

I don't understand these following questions, can someone please help me?1) find the work done by a 25 N force applied for 6 meters
2) calculate the potential energy of a 5 kg object sitting on a 3 m ledge
3) a rock is at the top of a 20 meter tall hill, the rock has a mass of 10 kg. how much potential energy does it have?

Answers

These questions are testing to see if you know
the formulas for work and potential energy ... or
if you know where to find them when you need them.

1). The formula for work is:

   Work = (force) x (distance) .

In this question: Work = (25 N) x (6 m) = 160 joules .
_____________________________

The formula for potential energy is

   PE = (mass) x (gravity) x (height) .

On Earth, gravity = 9.8 m/s²

This information gives you both of the other questions.

#2). PE = (mass) x (gravity) x (height)

       = (5 kg) x (9.8 m/s²) x (3m) = 147 joules

#3). PE = (mass) x (gravity) x (height)

       = (10 kg) x (9.8 m/s²) x (20 m) = 1,960 joules

What would be the necessary to use the accelerometer to measure in the units of m/s2

Answers

m/s2 is the SI of an acceleration.

a couple of things that are necessary to measure this :
- use the timing resources to measure the duty cycle
- performing a computationally intensive division operation

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