What makes comets different from asteroids and meteoroids? Question 8 options: A. They don't consist of ice. B. They travel in space. C. They consist of ice. D. They fly.

Infer why the output force exerted by a rake must be less than input force?

Which of the following is the visible part of the spectrum of light? A. color B. microwaves C. gamma rays D. sound waves Save

What best describes the refraction of light rays? light bouncing off of a mirror light bending when it passes through a lens light getting brighter when two waves combine light passing through a clear glass window

Which interaction of nature depends on the distance through which it acts and is involved in beta decay? a. strong c. electromagnetic b. weak d. gravitational

According to the theory of plate tectonics, what drives plate motion? A) Convention currents B) Magnetic reversals C) Volcanic eruptions D) Mid - ocean ridges

According to the concept of length contraction, what happens to the length of an object as it approaches the speed of light and then slows down, eventually coming to a stop? It is always observed as contracting.

If you could chooses between to nearly identical products the one that is free and the other you have to pay for which would you choose why

A bicyclist bikes the 56 mi to a city averaging a certain speed. The return trip is made at a speed that is 6 mph slower. Total time for the round trip is 11 hr. Find the bicyclist's average speed on each part of the trip.

You have two pendulums with cords that are exactly the same length. one is on earth (with an acceleration due to gravity of 9.81 meters/second2) and the other one is on the moon (with an acceleration due to gravity of 1.63 meters/second2).

A light-rail train going from one station to the next on a straight section of track accelerates from rest at 1.1 m/s2 for 20 s. It then proceeds at constant speed for 1100 m before slowing down at 2.2 m/s2 until it stops at the station.