What causes the curved path of a projectile?

a street light is mounted at the top of a 15 foot pole. A man 6 ft tall walks away from the pole wit a speed of 7 ft/s along a straight path. How fast is the tip of his shadow moving when he is 40 ft from the pole

The percentage of incident light radiation reflected back to space is termed albedo. True or false?

when an object moves down and does not stop which force is acting more strongly on the object, friction or gravity? explain

A 12,000-lb bus collides with a 2800-lb car. The velocity of the bus before the collision is vB = 18i (ft/s) and the velocity of the car is vC = 33j (ft/s). The two vehicles become entangled and remain together after the collision.

The frequency of light emitted from a source is changed. What visible evidence would indicate this?

A machine does 1,500 joules of work in 30 seconds. What is the power of this machine?

A boy standing on the deck of a bridge sees a motorboat approaching in the water below at a constant rate of speed. When the boat is 27 meters from the bridge, the big drops a stone to the water below. If the stone strikes the water 3.

Which object has a varying speed? A. a bird flying 10 m/s for 10 seconds B. a car slowing from 60 m/s for 10 seconds C. a fish moving at 2 m/s for 5 minutes D. a car traveling the speed limit

Most of the energy used by light on earth comes from

If a psychologist were to run an experiment measuring the effects of temperature on aggression the differing temperature would be considered the A. dependent variable. B. experimental variable. C. independent variable. D. random assignmen