A ray of light is incident on a plane mirror at an angle of 40 degrees with the mirror surface. What will be the angle of reflection?

a) 40 degrees

b) 50 degrees

c) 90 degrees

d) 150 degrees

According to the Law of Conservation of Energy, if Sally throws a watermelon with 100 joules of energy off the roof of a building, how much energy should the watermelon have as it hits the ground? A. 200 joules C. 100 joules B. 150 joules D.

The angle / theta_1θ 1 theta, start subscript, 1, end subscript is located in Quadrant / text{I}Istart text, I, end text, and / sin (/theta_1) = / dfrac{1}{2}sin (θ 1 ) =

Two bullets of the same size, mass and horizontal velocity are fired at identical blocks, only one is made of steel and the other is made of rubber.

Consider two identical small glass balls dropped into two identical containers, one filled with water and the other with oil. Which ball will reach the bottom of the container first? Why?

A person is standing in an elevator that is traveling up but is slowing down. the upward normal force exerted by the floor on the person is

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.