7. Nancy has a mass of 60 kg and sits on the very end of a 3.00 m long plank pivoted in the middle. How much torque must her co-worker provide on the other end of the plank in order to keep Nancy from falling on the ground?

What is the theoretical volume of 10mL of an ideal gas at absolute zero?

What is the voltage in a circuit if the current is 6 Amps and resistance is 6 ohms

E = mc2 means that a. electricity equals matter. b. energy balances matter. c. the speed of light is energy. d. matter can be converted into energy.

2) A constant net force acts on an object. Describe the motion of the object.? a. constant acceleration c. constant velocity

What are some ways houses along the coastlines can protect themselves from storm surges?

Which of the following statements about degeneracy pressure is not true? a) Black holes form when gravity overcomes neutron degeneracy pressure. b) Degeneracy pressure arises from a quantum mechanical effect that we don't notice in our daily lives.

A bar magnet and a second object are hung from metal rods. The diagram below shows what happens when both objects are released.

Which measurement below has three significant figures? A. 12,300 lbs B. 12.02 m C. 0.2004 g D. 0.018 km

When you stand by the side of a pool someone swimming underwater appears to be in a different location than she really is the effect is called what

A 905 kg test car travels around a 3.25 km circular track. If the magnitude of the centripetal force is 2140 N, what is the car's speed?