Tungsten and gold wires of equal length are found to have the same resistance. What is the ratio of their radii

Atomic nuclei of almost all elements consist of

How will the system respond to a temperature increase?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?