An airplane flies 40km directly south in 10 minutes and 20 km directly east in five minutes, its average speed is:

a) 2.98km/min

b) 2km/min

c) 8km/min

d) 4km/min

Prior to the music CD, stereo systems had a phonographic turntable on which vinyl disk recordings were played. A particular phonographic turntable starts from rest and achieves a final constant angular speed of 33 1 3 rpm in a time of 4.5 s.

Of the solar radiation entering the atmosphere, about ___% reaches the surface directly as direct radiation.

If the ISS orbits 15 times a day around the Earth what height is it from the ground?

If HST has a tangential speed of 7,750 m/s, how long is HST's orbital period? The radius of Earth is 6.38 * 106 m.

Jimmy walks 3 miles east then 1 mile west. What is the distance Jimmy traveled?

A ball is thrown up into the air with an initial velocity of 64 ft/sec. The ball is 4 ft above the ground when it is released. Its height, in feet, at time t seconds is given by: h (t) = - 16t^2 + 64t + 4.

Total these measurements. Your answer should indicate the proper accuracy. Be sure to include the units in your answer.

What is vector quantities?

How does heat flow? A. Heat flows from all objects to all other objects. B. Heat flows from a warmer object to a colder object. C. Heat does not actually flow from one object to another.

Suppose you and a friend, each a mass of 60 kg, go to the park and get on a 4.0-m-diameter merry-go-round. You stand on the outside edge of the merry-go-round, while your friend pushes you so that you rotate once every 6.0 seconds.