# How much work does it take to raise a #7 kg # weight #9 m #?

Assuming it is raised vertically on or near earth, the work done is equal to the potential energy gained.

By signing up, you agree to our Terms of Service and Privacy Policy

The work done to raise a 7 kg weight 9 m is 630 joules.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- How much work does it take to raise a #7 kg # weight #28 m #?
- The force applied on a moving object with a mass of #5 kg # on a linear path is given by #F(x)=x^2+1 #. How much work would it take to move the object over #x in [1,4 ] #?
- A spring with a constant of #2 (kg)/(s^2)# is lying on the ground with one end attached to a wall. An object with a mass of #4 kg # and speed of # 3 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?
- The force applied against an object moving horizontally on a linear path is described by #F(x)= cospix+x #. By how much does the object's kinetic energy change as the object moves from # x in [ 0, 2 ]#?
- John uses a pulley to lift the sail on his sailboat. The sail weighs 150 N, and he must lift it 4.0 m. The pulley is 50% efficient. How much work must be done to lift the sail? How much work must John do on the rope to lift the sail?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7