Convert 87°F to Celsius scale?

Rock formed from the crystallization of magma is called

The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 10 m radius of curvature. What is the car's speed at the bottom of the dip?

The period of rotation of Mercury in hours is 1407.6 hr. Given that Mereury has a radius of 2.4 X 10^6 m at its equator, what is the linear velocity (in m/s) at Venus's surface? (Enter the magnitude of the linear velocity at the equator.)

A mass M tied to a light string is moving in a vertical circle. The tension in the string at the top is TT and TB at the bottom of the circle. The work done by the tension on M as it moves from bottom to top is:

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 20 N. The radius of the planet is 4.0 ' 106 m. What free fall accerleration will the 0.

You can or can't pass on a scar to your offspring?

In addition to births and deaths what else can influence the population growth rate?

A 1300 kg car carrying four 84 kg people travels over a "washboard" dirt road with corrugations 3.2 m apart. The car bounces with maximum amplitude when its speed is 13 km/h.

Skeletal muscle cells have large stores of ATP that are readily available and alone can provide energy for maximal exercise lasting 30-60 seconds.

A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is displaced 8.97 cm, how much work is done by the ball? Answer in units of J.