Mechanical energy is defined as the sum of both the potential energy and the kinetic energy of an object. according to the law of conservation of energy, what happens to mechanical energy if the potential energy of an object decreases?

Give the biological term for: structures that display characteristics of living organisms only within living cells

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

The activity of the modern sample is 1.10 bq . how long does that measurement take?