Elevation above sea level is called

During a circus performance, a 71.2-kg human cannonball is shot out of an 18.0-m-long cannon. If the human cannonball spends 0.785 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.

The human ear is most sensitive to sound that has a frequency of about 4000 Hz. Assume that the speed of sound in air is 340 m/s. What is the wavelength of a sound heard in the air with this frequency? A. 0.043 m B. 0.085 m C. 12 m D. 340 m

Accelerations are produced by equal forces or unequal forces?

If tides occur twice a day in most places. How much time is there between a morning high tide and the next high tide? A: about 6 hours B: about 12 hours C: About 24 hours D: about 8 hours

Paperclips are more dense than water. however, it's possible to make them float. what property of water allows this? how does this property relate to the molecular structure of water

Compare all the organisms. What trend do you see?

A man weighs 1190 n on earth. what would he weigh on jupiter, where the free-fall acceleration is 25.9 m/s 2? the acceleration of gravity is 9.8 m/s 2. answer in units of n.

What is always true of a single-displacement reaction?

Mrs Garcia traveled 15 km in 1 hour. What was her average velocity in km/s?

Contrast the nucleus and electron in a cloud