Ametal ball of specific heat capacity 400 joule per kgper celsius is allowed to fall from a height of 100 metre .if the ball on hitting the ground stops and all the energy possessed by it is converted into heat energy calculate the rise in temperature of the ball (g = 200 metre per second square)

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?