Which term means the weight of air measured in units of force per area?

A. air pressure

B. air viscosity

C. relative pressure

D. air resistance

Driving while sleep impaired is much safer than driving while intoxicated.

How does a roller coaster create the sensations of falling, and being thrown around?

How does the total current through the branches of a parallel circuit compare with the current through the voltage source?

A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?

A projectile travels above level ground. The initial vertical component of its velocity is 0.90 m/s and the initial horizontal component of its velocity is 0.60 m/s.

A bad case of the tonsillitis can sometimes affect a persons breathing how possible

How gravity affect time? With reference to einstein special theory of relativity

An experiment was performed on a 2-kg block. Forces of 5, 10 and 15 Newtons respectively were applied to the block for 5 seconds. Describe the difference in final speed between the three trials.

Jake designed an experiment to demonstrate a solar eclipse. The steps of the experiment are listed below. Place a light bulb on a stand. Stick a pencil into a small styrofoam ball. Switch on the light bulb and darken the room.

A boat sails an average speed of 20 km/h for 2 days. How far does the boat travel?