Monday

July 28, 2014

July 28, 2014

Posted by **Anonymous** on Thursday, October 14, 2010 at 2:39am.

- physic -
**bobpursley**, Thursday, October 14, 2010 at 9:20amThe average height before is 4.25cm

The average height after is 4*8.25cm

work=7(1.3)*(4*.0825 - .0425)*9.8 joules

work = massmoved*change height*g

Make certain you know why seven masses are in the calculation.

**Related Questions**

Physics - Eight books, each 4.1 cm thick with mass 1.8 kg, lie flat on a table. ...

Science - Eight bricks 6 cm thick with mass 1.5kg lie flat on a table.how much ...

szabist imc larkana - ten bricks each 6.0cm thick and mass of 1.5kg, lie on a ...

physics - How many uniform, identical textbooks of width 25.0 cm can be stacked ...

Phyics help - I have a few physics questions: 1. How much mechanical work is ...

Physics 1 - There are six books in a stack, and each book weighs 5 N. The ...

Physics Help2I!!! - There are six books in a stack, and each book weighs 5N. ...

Physics - There are six books in a stack, and each book weighs 5 N. The ...

physics - please help There are six books in a stack, and each book weighs 5 N. ...

Physics - A stack of books rests on a level perfectly smooth surface. A force F ...