What is the proper depth for a squatter to be at in the bottom of the squatting motion? A. Femur parallel to the floor
B. 10 inches...knees in front of the toes
O C. Femur is at a 45' angle above knee
O D. Slight flexion of the knees

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

What was the first instrument to ever record an earthquake?