Suppose you want to to double a copper wire's resistance. To what temperature, in degrees celsius, must you raise it if it is originally at 23°c, neglecting any changes in dimensions?.

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?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.