Which of these can a fun house mirror do? Select all that apply.

a) focus light rays

b) spread light rays

c) refract light rays

d) absorb a lot of light

e) reflect light rays so they're parallel to each other

Some substances are radioactive. they may emit Alpha or Beta particles. describe the characteristics of Alpha and Beta particles in terms of their: - Structure - penetration through air and other materials -deflection in a electrical field.

What if there is no subscript for a element?

What are two harmful and two beneficial microorganisms

Which of the following would be best used as an electrical insulator? A. copper B. silver C. salt water D. wood

if your mother cheated on your father with his brother which is your real father does that make you your brothers cousin

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.

Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing 10 laps using a stopwatch with a precision of 0.01 s. Do you believe his results are reliable? Explain.

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J

Why the room gets hot even we open the door of refrigerator?