How do you calculate PWT?

To calculate time, power, or work, follow the steps below.

Example: Calculate the power required to do a work of 25 J in 30 seconds of time.
Solution:
Step 1: Identify and write down the values.
Step 2: Apply Formula.
Power = Work/Time (P = W/T) P = 25/30. P = 0.83 W. Power (P) = 0.83 Watts.

What is the kinetic energy of a 55 kilogram skier?

Answer Expert Verified This is the solution: KE=1/2mv^2 KE=1/2(55kg)(9.0m/s)^2 KE=1/2(4455) KE=2227.5J or it can be written in scientific notation as 2.2275×10^3J or closest to your choices is 2.2×10^3J.

What is the gravitational potential energy with respect to the surface?

Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The most common use of gravitational potential energy is for an object near the surface of the Earth where the gravitational acceleration can be assumed to be constant at about 9.8 m/s2.

Which graph best represents the relationship between potential energy and height above ground?

At the surface of Earth, where, height is 0, the gravitational potential energy is also zero. Therefore, the correct graph is a straight line with positive slope and passing through the origin.

What is the relationship between an object’s height above the ground and its GPE?

Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.

At which position will the roller coaster have the greatest amount of potential energy?

Gravitational potential energy is the energy that an object has because of its height and is equal to the object’s mass multiplied by its height multiplied by the gravitational constant (PE = mgh). Gravitational potential energy is greatest at the highest point of a roller coaster and least at the lowest point.

Which type of energy is the stored energy of an object or material due to its position?

potential energy