You throw a ball straight up into the air. What kinds of energy are changing as it goes up?
A. Light energy and gravitational potential energy
B. Kinetic energy and elastic energy
C. Gravitational potential energy and kinetic energy
D. Nuclear energy and sound energy

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer