3. The figure below show a bar of negligible weight pivot at point A attached to the wall by a rope and carrying a load W at end of B. If the rope exerted by inclined rope
is 600N.
Fi=600N
Find
a F2
b) W
53°
A
B
ze
30°
F2=?
w​

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.