A projectile is fired at an angle of 55.0° above the horizontal with an initial speed of 35.0 m/s. what is the magnitude of the horizontal component of the projectile?

In 1896, S. Riva-Rocci developed the prototype of the current sphygmomanometer, a device used to measure blood pressure.

What two types of evidence are used to classify orgianisms?

A box is dragged without acceleration in a straight-line path across a level surface by a force of 13 N. What is the frictional force between the box and the surface?

A young hockey player stands at rest on the ice holding a 1.3-kg helmet. The player tosses the helmet directly in front of him with a speed of 6.0 m/s and recoils with a speed of 0.25 m/s.

How does a generator work?

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

Explain why meteorologists compare new weather maps and weather maps that are 24 hours old

Describe the uses of compound pulleys

Why do cities on the East Coast have warmer climates than cities on the West Coast at similar latitudes?

What energy transformations take place when you eat a taco and then go for a jog around the neighborhood?