Need a picture of the problem
Answer:
Galileo Galilei was looking into a telescope and he realized we orbit around the sun and the moon orbits around us
Explanation:
Answer:
Explanation:
Kinetic energy is the energy an object possesses due to motion. It is calculated with the following formula.
The mass of the object is 4.7 kilograms. The velocity of the object is 7 meters per second.
Substitute the values into the formula.
Solve the exponent.
- (7 m/s)²= 7 m/s * 7 m/s = 49 m²/s²
Multiply the numbers together.
Convert the units. 1 kilogram square meter per square second is equal to 1 Joule.
The object has <u>115.15 Joules</u> of kinetic energy.
A 16.0 kg crate increases in height from 1.80 m to 3.30 m above the floor. The increase in potential energy is 240 J (a).
<h3>What is potential energy?</h3>
It is the energy due to the position.
A 16.0 kg (m) crate rests on a shelf 1.80 m (h₁) above the floor in a warehouse. The potential energy is:
U₁ = m × g × h₁ = 16.0 kg × (9.81 m/s²) × 1.80 m = 283 J
A forklift is used to raise the crate to a shelf 3.30 m (h₂) above the warehouse floor. The potential energy is:
U₂ = m × g × h₂ = 16.0 kg × (9.81 m/s²) × 3.30 m = 518 J
The increase in the potential energy is:
518 J - 283 J = 235 J ≈ 240 J
A 16.0 kg crate increases in height from 1.80 m to 3.30 m above the floor. The increase in potential energy is 240 J (a).
Learn more about potential energy here: brainly.com/question/23979653
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Explanation:
In uniform gravity it is the same as the centre of mass. For regular shaped bodies it lies at the centre of the that particular body. Hence for a cylinder centre of gravity lies at the midpoint of the axis of the cylinder.
