A slinky is stretched across a classroom to 9 meters. A compression travels along the slinky at a velocity of 2 m s. How long does it take the compression to travel the entire 9m length of the classroom?

A solid steel bar of circular cross section has diameter d 5 2.5 in., L 5 60 in., and shear modulus of elasticity G 5 11.5 3 106 psi. The bar is subjected to torques T 5 300 lb-ft at the ends. Calculate the angle of twist between the ends.

If a track athlete runs an 800 m race at a constant speed of 2m/s, how long will it take her to win the race?

At a distance of 1.0 A. U., the earth takes 1.0 year to travel around the sun. How far away is a planet that takes 64 years to go around the sun?

What is the meaning of the gravity?

Which statement supports Newton's first law of motion? A. Planets can change the direction of their own orbital path. B. Planets with more inertia will not be impacted by the Sun's gravity. C.

Explain why models are often used to study other planets.

The main factors that affect an area's temperature are prevailing winds and mountains. a. True b. False

What is the displacement of an object during a specific unit of time?

Is there an end of rainbow

A downhill skier was able to move 560 meters in 25 seconds. What is the skier's average speed? (Round your answer to the nearest tenth of a meter per second.)