What TA makes something a good insulator?

Why do sound waves move faster through the ground than through the air? Particles of matter are packed more loosely in the ground than in the air. Particles of matter are packed more tightly in the ground than in the air.

The nucleus of an ordinary hydrogen atom consists of what

You are standing on a concrete slab that in turn is resting on a frozen lake. Assume there is no friction between the slab and the ice. The slab has a weight five times your weight. If you begin walking forward at 2.

Which produces more energy: The fissioning of a single uranium nucleus or the fusing of a pair of deuterium nuclei? The fissioning of a gram of uranium or the fusing of a gram of deuterium?

Contact lenses are made up of ... ?

Five students measured the same kind with the ruler shown below the results reported by the students were as follows 4.51 cm, 4.55cm, 4.5cm and 4.

What's the momentum of 100 kilograms fullback carrying a football field on a play at a velocity of 3.5m/s?

On a roller coaster, riders can experience a force of up to 4 g. What is the maximum acceleration of the roller coaster?

After a great many contacts with the charged ball, how is any charge on the rod arranged (when the charged ball is far away) ? There is positive charge on end B and negative charge on end A. There is negative charge spread evenly on both ends.

Cobalt-60 can make fruit flies infertile. Justify the uses of above radioactive mentioned.