Which does not contain a lens?

A.

a floodlight

B.

eyeglasses

C.

a glass eye

D.

a jeweler's loop

Kepler's third law can be used to compare the moon's orbit around the earth to the orbit of the earth around the sun.

What would the potential of a standard hydrogen electrode (s. h. e.) be under the given conditions? [h+]=0.46 mph2=1.9 atmt=298 k?

A ball is thrown straight up into the air. At each of the following instants, is the ball's acceleration ay equal to g, - g, 0, g?

Which waves cause matter to move back and forth in the same direction? A. longitudinal waves B. transverse waves C. magnetic waves

A girl is standing still in the middle of a baseball field. The girl catches the baseball and begins to move in the same direction as the thrown ball. What type of collision is being described?

Determine the magnitude of the effective value of g⃗ at a latitude of 60 ∘ on the earth. assume the earth is a rotating sphere.

What characteristic of a planet determines the acceleration due to gravity on it?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, position velocity, height height, velocity

You are operating a powerboat at night. You see green and white lights on another boat. What should you do?

How does Newton's second law apply to an "Egg Drop" experiment?