Why are distant objects in the universe moving away from Earth? Because the light they emit is redshifted. Because Earth's gravity pushes them away Because the universe expanding Because of a supernova event

Two advantages of solar energy over energy from Fossil fuels

The jamaican bobsled team hit the brakes on their sled so that it decelerates at a uniform rate of 0.43 m/s, how long does it take to stop if it travels 85 m before coming to rest

Glass is mostly made of silica, which is found in sand. if lead is added to silica to make a crystal vase, the lead is known as the

What is the study of the laws of matter and motion

What are two parts that make up a vector

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is pulled A. gravity pulls very hard on the milk carton. B. the milk carton has very little weight. C. the milk carton has inertia. D.

What is concave mirror

Two boxes are suspended from a rope over a pulley. each box has weight 50 n. what is the tension in the rope

What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is the outcome? What happens after an hour in vinegar?

Psuedopod in a sentence