Why is the high specific heat of water important to our planet?

Which term best describes the phrase “something that happens”?

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

If a simple machine reduces the strength of a force, what must be increased?