How much heat does it take to raise a
cup of water (2.34 x 10-4 m3) from
15.0 °C to 75.0 °C?

An astronomer at the equator measures the doppler shift of sunlight at sunset. from this, she calculates that earth’s tangential velocity at the equator is 465 m/s. the centripetal acceleration at the equator is 3.41  10 2 m/s 2 . use this data to calculate earth’s radius.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.