Which gas in earths atmosphere protects earth by reflecting ultraviolet radiation

Suppose a student takes a study break from astronomy homework and steps out onto his or her balcony on a fall evening.

Suppose a pulley with an IMA of 2 was used with an input force of 50 N to lift a box 45 cm that weighs 100 N. What distance was the rope pulled?

How is a liquid fundamentally different from a gas? A. one is wet and one is dry B. one is hot and one is cold C. one flows and one does not flow D. one's atomic particles are moving faster than the other's

What is the ultimate source of electromagnetic waves? A. Vibrating atoms B. Vibrating molecules C. Radio sets D. Vibrating charged particles E. TV antennas

What do behaviorism and cognitive psychology have in common? O Both rely on the scientific method. Both attempt to explain human behavior. Both note the differences between human and animal behavior Behaviorism focuses on actions only.

A bathroom scale is compressed 0.21 in. when a 210 -lb person stands on it. Assuming that the scale behaves like a spring that obeys Hooke's law, how much does someone who compresses the scale 0.06 in.

Explain what happens when a ferromagnetic material is made into a permanent magnet.

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light