Where do all the elements that form planets come from

A Ferris wheel has a radius of 25 feet. The wheel is rotating at two revolutions per minute. Find the linear speed, in feet per minute, of a seat on this Ferris wheel ...?

When a ceiling fan rotating with an angular speed of 3.56 rad/s is turned off, a frictional torque of 0.105 n⋅m slows it to a stop in 31.3 s?

Why did Thomson's results from experimenting with cathode rays a big change in scientific thought about atoms?

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How does velocity differ from speed? What changes in motion can result in a change in velocity?

34. A steam engine operates between 300K and 600K, the maximum possible efficiency of this engine is a. 100% b. 75% c. 50% d. 25%

How many moles of phosphorus trichloride are in 200 grams of the molecule? 62.67 mol 27,466.6 mol 1.46 mol 0.69 mol

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?