A 517kg piano is on the first floor that is 2.4m high. You lift it up and carry it to the 4th floor that is 19m above the ground. How much work did you when you carried the piano from the 1st floor to
the 4th floor?

What are the phases shown in a and d called?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20