What is the critical angle for glass when the refractive index is 1.45

A car traveling at a speed of 13 meters per second accelerates uniformly to a speed of 25 meters per second in 5.0 seconds. A truck traveling at a constant speed covers the same total distance as the car in the same 5.0 second interval.

As a tractor pulls a plow across a field, it exerts a force on the plow in the forward direction. What is the "equal and opposite force" in this interaction, according to Newton's third law?

A brick and a feather fall to the earth at their respective terminal velocities. which object experiences the greater force of air resistance?

A hot air balloon is rising vertically with a velocity of 10.0 feet per second. A very small ball is released from the hot air balloon at the instant when it is 960 feet above the ground. Use a (t) = -32 ft/sec2 as the acceleration due to gravity. 1.

Why do plates move away from the mid - ocean ridges?

Which of these would you include ina free body diagram for a bicycle-plus-rider taken together as the bicycle is being pedaled up the hill?

What are two possible uses of genetic engineering

How many joules are expended by a 70 kg man climbing up 6m of stairway? How much work is done if the climbing takes place on the surface of the moon? (Assume that the acceleration due to gravity on the moon's surface is 1.6 m/s2

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9