Calculate the force (in pounds) ona 4.0 ft by 7.0 ft door due to a 0.4 psi pressure difference.

If a textbook weighs 19.6N on earth. what is its mass?

A nuclear reaction releases 9.00 * 10^13 J of energy. What was the change in mass? 5.0 * 10^-4 kg 1.0 * 10^-3 kg 5.0 * 10^-3 kg 5.0 * 10^-2 kg

Quick Physics Review Questions! What is true about heat capacity and specific heat? Only heat capacity accounts for mass. Both heat capacity and specific heat account for mass. Neither specific heat nor heat capacity accounts for mass.

In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) What is the magnitude of the car's acceleration? (b) How long does it take the car to change its speed from 10.0 m/s to 20.

Describe a simple experiment to show that sound cannot propagate through vacuum

How is sun related to nuclear, electromagnetic, and heat energy?

Studies of gymnasts show that their high rate of injuries to the Achilles tendon is due to tensions in the tendon that typically reach 12 times body weight.

The total mechanical energy of a system: A) can never be negative. B) is constant, if only conservative forces act. C) is either all kinetic energy or all potential energy, at any one instant.

If the torque on an object adds up to zero: A) the object could be accelerating linearly but it could not be turning. B) the object is at rest. C) the object cannot be turning. D) the object could be both turning and accelerating linearly.

What to do if vehicle struck by lightning