Fossils, plants, and animals are what make rocks different from minerals.

true of fales

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign