Which collects light in a reflecting telescope?

a. concave lens

b. concave mirrors

c. convex lens

d. convex mirror

If you traveled in a car for 45 miles at 30 mph and traveled for 90 miles at 45moh, how much time did your total trip take? show equation.

Two forces of 5N and 7N respectively act on an object. when will the resultant of two vectors be at a minimum?

Rosie is reading an article about living cells. The article states that all living cells are composed of one or more cells, that the cell is the basic unit of structure, function, and organization in all organisms, and that all cells come from

List four clues that suggest a chemical change is taking place

An airplane takes off from Dallas, Texas, to fly to New York City traveling NE for 2,760 km. The same plane returns that day to Dallas. The airplane spent 2 hours on the trip to New York City, and the return trip took 2 hours.

A dc generator is the same as a (n) a. electric motor. b. ac generator. c. armature. d. electric current.

Which of the following best describes scientific knowledge A.) Durable B.) Absolute and never changing C.) Frequently varies

Beth made the chart shown. A 2-column table with 1 row. The first column labeled X has entries Wall clock, T V remote control, Portable music player. The second column labeled Y has entries Refrigerator, Table lamp, Hair dryer.

Which sentence states Newton's third law? If two objects collide, each object exerts a force in the same direction as the other. If two objects collide, each object exerts a force equal to and in the opposite direction of the other.

Why did the chicken cross the road.