List some exothermic and endothermic processes

Calculate the electric field at the location of a charge if the electric force is 10 newtons and the charge on the particle is 6 coulombs. a. 0.6 j b. 0.6 n/c c. 1.7 v d. 1.7 n/c

A 0.690 kg snowball is fired from a cliff 8.25 m high with an initial velocity of 10.3 m/s, directed 32.0° above the horizontal. (a) Using energy techniques, find the speed of the snowball as it reaches the ground below the cliff.

Which of the following statements about braking a car are true? (more than one) A. The greater the kinetic energy of a car, the longer it takes for the car to stop. B. The lower the kinetic energy of a car, the longer it takes for the car to stop. C.

A cage containing male mosquitoes has a small earphone placed on top, through which the sound of a female mosquito is played. all the males immediately fly to the earphone and go through all of the steps of copulation.

A white dwarf is a large star capable of fusing elements.

According to Newton's law of universal gravitation, which statement is true? A. Lighter objects experience a higher acceleration than heavier objects. B. Falling objects accelerate as they approach the ground. C.

Thermal radiation is defined as what?

What are the similarities between p waves S waves and surface waves

How is sound energy produced A. Vibrating objects B. objects being heated C. Temperature differences D. Stationary objects

A 36.9-kg crate rests on a horizontal floor, and a 64.9-kg person is standing on the crate. Determine the magnitude of the normal force that (a) the floor exerts on the crate and (b) the crate exerts on the person.