What is the half life of u-235 according to the graph

What is a lever used for?

Lakes A) always contain fresher water B) are recharged by precipitation C) are usually found near the equator D) accounts 25% of earths freshwater

Suppose that the same amount of heat is added to two 10.0-g blocks of metal, both initially at the same temperature. one block is gold metal, and one is iron metal.

What is the average velocity in m/y of a tectonic plate that has traveled 9000 km to the south in 60 million years

Which example involves the transformation of chemical energy directly into light energy?

The atomic emission spectra of a sodium atom on earth and of a sodium atom in the sun would be

The Mississippi River carries tons of tiny rock fragments called sediments into the Gulf of Mexico. What do u think will happen to these sediments in a few million years

True or False: If the initial speed of an object is zero, then the initial position of the object must be the origin. Explain

que potencia se disipa en un aparato eléctrico que opera con un voltaje de 60V y una corriente eléctrica de 1.5 A

List three things you have done today that used kinetic energy.