A trunk is dragged 3 m across an attic floor by a force of 2 N. The work done on the trunk is joules. Assuming the floor to be level, the gain in potential energy is joules.

The temperature at which the particles of a substance would have no kinetic energy is a. 2,273 k. b. 0 k. c. 0 ºc. d. 273 k. answers

What is the minimum size aluminum main bonding jumper (wire type) for service if the largest ungrounded service conductor is 5000 circular mil copper 3/0 AWG T/F

During or after exercise, it is normal for a student to comment that his/her heart feels like it is "beating out of my chest."

Which of the following can be calculated when given the radius of a wheel and the radius of an axle? A. The effort force needed to move the wheel and axle. B. The amount of resistance force the wheel and axle can overcome. C.

The state of water is determined solely by the conditions of pressure and temperature. true false

Animals that can hear ultrasonic sounds are the what

If the rock has a mass of 1 kg which is the speed of the rock after it has fallen for two seconds

2 Cars A and B both at rest are to set of from a town to a common destination along the same route. Car A was the first to take off and travelled at 2.

In an experiment to measure the acceleration due to gravity, g two values, 9.72 m/s2 and 9.67 m/s2, as determined. if the accepted value of g is: 9.8 m/s2 find the followings: i) the percentage difference of the measurements?

If momentum is conserved in a collision, does this indicate conclusively that the collision is elastic?