If there's nothing faster then light then how did the dark get there first and if the dark was always there then how was light created?!!

How much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50?

In which of the following are action and reaction forces involved? A. when a tennis racket strikes a tennis ball B. when stepping from a curb C. when rowing a boat D. all of the above

Stacy travels 5 times as fast as Eric. Traveling in opposite directions, they are 336 miles apart after 4 hours. Find their rates of travel.

A Batsled of mass 10kg sits on a horizontal surface. Batman (30kg) runs with a velocity of 5m/s. He jumps onto the sled (assume a completely inelastic collision).

Which of the following is a vector quantity? a) 83 ounces of liquid b) 10 m/s down c) 15 seconds of travel d) 55 km/hr in a truck

Exoplanets (planets outside our solar system) are an active area of modern research. Suppose you read an article stating that there is a newly discovered planetary system with three planets.

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

How Long will it take a plane flying north from Miami to reach New York City 1800 km away if the average velocity of the plane is 940 km/h

If vector A = 5.5N NE and vector B = 10m N 30° W, what is the vector product of A*B

Which is the best desciption of a molecule?