1) what's the recommend amount of uv protection that sunglasses should provide?

a. 50%

b. 75%

c. 80%

d. 100%2) one way to ensure good sleep hygiene is to change your bedtime frequently. truefalse

You can make the current in a circuit smaller by?

Calculate the velocity displace = 3500km and time = 3 hours

A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision? A. 0.0 joules B. 3.2 * 103 joules C. 1.0 * 104 joules D. 1.

What happens when a rubber balloon is rubbed against wool and gains electrons?

Which statement best describes how shear strain can change an object? a. It becomes a different shape with different shape angles. b. It decreases the load on an object. c. It concentrates stress in areas with the largest cross section. d.

Jack drops a stone from rest off of the top of a bridge that is 24.4 m above the ground. After the stone falls 6.6 m, Jill throws a second stone straight down. Both rocks hit the water at the exact same time.

How is Electric current able to flow?

In a series circuit, loads which have the same voltage dropped across them will have?.

When a brick is dropped from the roof of a house, it lands on the ground with a speed v. What will the speed at ground level be for an identical brick dropped from a roof twice as high as the first one?

The scientific method begins with recognizing a problem. The recognized problem in this scenario is, "Why is the printer in the office not working?" Choose the hypotheses that are testable and from which an experiment can be formed.