How many milliseconds are in 1 second

At what time of year is the intensity of solar radiation striking each of earth's hemispheres weakest?

A ball flies through the air. Right before it hit the ground, it's peed is 10 meters/second and it has 500 joules of kinetic energy. The mass of the ball is ___ kilograms

D=Vi (t) + 1/2at^2 solve for d

A thermometer initially reading 212F is placed in a room where the temperature is 70F. After 2 minutes the thermometer reads 125F. (a) What does the thermometer read after 4 minutes

A 61.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.62 m/s upward. (Take upward as positive and forward as positive.) (a) What impulse does the player experience? magnitude 99.63 Correct: Your answer is correct.

How did Niels Bohr change the atomic model based on his experimental results?

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 50.0 cm. She finds that the pendulum makes 100 complete swings in 136 s. What is the value of g on this planet?

When a the irregularities of one surface come into contact with those of another surface, occurs

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals