Suppose an endothermic reaction has a positive change in entropy greater than the heat absorbed. What can be said about the spontaneity of this reaction?

The weight of an object is a. the force of gravity on its mass. b. the amount of matter in an object. c. the tendency of an object to resist motion. d. the tendency of an object to continue moving in a straight line.

A 1200 Kg car travels at constant speed of 32 m/s/s. If the coefficient of friction between the road and the tires is 0.45 what force is applied by the car engine to run it?

A shot is fired at an angle of 60 degree horizontal with Kinetic energy E. If air resistance is ignored, the K. E at the top of trajectory is: 0, E/8, E/4, E/2

Which of the following describes the mechanical advantage of a compound machine?

A manometer is used to measure the air pressure in a tank. The fluid used has a specific gravity of 1.25, and the differential height between the two arms of the manometer is 28 in. determine the density

2. A wave on a rope has a wavelength of 2.0 m and a frequency of 2.0 Hz. What is the speed of the wave? step# 1 step#2 step#3

What instrument measures atmospheric pressure?

How do mass and speed affect kinetic energy?

What is the degree of freedom of a monoatomic gas?

Explain what happens to the pitch of a cell phone ringing when the amplitude of a sound wave increases.