What is the potential energy of a 30 Newton ball that is on the ground

Answers

Answer 1

Answer: The potential energy of a 30N ball on the ground will be zero. With respect to height, h. Potential energy will be calculated like this. P=mgh. So if its on the ground relatively speaking the h=0. Thus inputting into the above formula. P=0.

Related Questions

A company is creating a new cylindrical container to replace its original cylindrical container.´ The new container will have 4 times the volume of the original container.´ The height of the new container will remain the same as the height of the original container.The length of the radius of the new container will be -f 4 times the length of the radius of the original containerg 8 times the length of the radius of the original containerh 2 times the length of the radius of the original containerj 16 times the length of the radius of the original container
People in the United States know that water boils at 212°F. In Europe,people know that water boils at 100°C. Is the water in the U.S. differentthan the water in Europe? What explains the two different temperatures?
Sarai strolls to the right with an average speed of 1.2m/s for 1500 seconds. What was Sarai's displacement in meters?
Describe a situation when you might travel at a high velocity but a low acceleration
Of waterfalls with a height of more than 50 m , Niagara Falls in Canada has the highest flow rate of any waterfall in the world. The total average flow rate of the falls is 2.80×10³ m³/s and its average height is 52.0 m (Niagara Falls Live, 2017). Given that the density of water is 1.00×10³ kg/m³, calculate the average power output of Niagara Falls.Average power output: _________.

The diagram shows a swinging pendulum.Which best explains what happens to the motion of the pendulum?

A. The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving.

B. The mechanical energy disappears as the pendulum slows and eventually stops moving.

C. The pendulum will continue moving at the same speed until someone stops it because energy cannot be destroyed.

D. The pendulum will slow down but will never stop moving because energy cannot be destroyed.

Answers

The correct answer is

A. The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving.

In fact, we must keep in mind the presence of the air, which causes some resistance to the motion of the pendulum. As the pendulum moves through the air, part of its mechanical energy is transferred to the molecules of air because of the friction of this molecules with the surface of the pendulum. As a result, the pendulum slows down, and eventually stops. The initial energy of the pendulum has been converted into thermal energy of the molecules of air, which move faster now.

Answer:

The guy above is correct it's A

Which voice can produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m?

Answers

The answer for you question would be : Soprano
One of the type of voice that could produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m would be soprano

hope this helps

A solution is measured to have a pH of 2.3. What is most likely also true about the solution?1.)It has a low hydroxide ion concentration.
2.)It has a low hydronium ion concentration.
3.)It is neutral.
4.)It has no H2O molecules.

Answers

According to the pH scale, a solution that has a pH of < 7 is considered an acid. Since it is established that the solution is an acid, there will be a low OH- concentration (hydroxide ion) in solution. In terms of hydronium ion, an acid has a higher amount of hydronium ion concentration.

Answer:

the answer is A

Explanation:

took my segment exam!!

The movement of water is like the flow of the electricity. Electricity must have a complete path for the flow. This movement is called:

Answers

The answer is current.

Current in the context of an electrical circuit is the flow of charge. Current is a quantity that is physical and can be measured. Current is defined as the rate of the flow charge past a certain point in a circuit. Current is expressed in Amperes which is equal to 1 coulomb/1second.

If two solutions have unequal concentrations of a solute, the solution with the lower concentration is called

Answers

obviouskly lower concentrstion

A student who weighs 550 N is wearing a backpack that weighs 80 N. The student is standing still on level ground. Give your answers to the following questions in newtons. Remember, enter only the number; don't try to enter the units.a) What is the magnitude of the net force on the student?b) What is the magnitude of the contact force on the student by the backpack?
c) What is the magnitude of the contact force on the student by the ground?

Answers

Answer:

Explanation:

a) The magnitude of the net force on the student = 0 N since the student is standing still on level ground and upward reaction force = downward force.

b) the magnitude of the contact force on the student by the backpack = 80 N since the student was backing the backpack

c) the magnitude of the contact force o the student by the ground = 550 N + 80 N = 630 N reactional force on the student

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