Trace fossils are much more common than body fossils. Which of the following best explains why trace fossils are more common?

The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.65_105ft3 of helium. If the gas is at 24_C and 1.0 atm, what mass of helium is in the blimp?

Which statement best describes the situation? Which statement best describes the situation? The car has the greater change of momentum because it has the greater speed. The truck has the greater change of momentum because it has the greater mass.

Which describes the amplitude of a wave? A. the length of a wave from one crest to the next crest B. the height of a wave from its rest position to its crest C. the height of a wave from its crest to its trough D.

How long will it take for a body accelerating by 2m/s2 to gain a velocity of 10m/s, starting from rest?

A boat is moving at the rate of 15.0 meters per second. It's speed is then decreased uniformly to 3.0 meters per second. It takes 4 seconds for the speed to decrease. What is the magnitude of the deceleration of the car?

What is a tool that measures the size of a force

A cat runs and jumps from one roof top to another which is 5 m away and 3 m below. Calculate the minimum horizontal speed with which the cat must jump off the first Roof in order to make it to the other.

The force of attraction that holds two atoms together within a molecule is

An incident ray traveling in a slower medium strikes a boundary with a faster medium. What happens when its angle of incidence is greater than the critical angle?

Question 1 [7] Hydrogen gas is used in a Carnot cycle having an efficiency of 60% with a low temperature of 300K. During the heat rejection the pressure changes from 90 kPa to 120 kPa.