A recovered corpse is identified as that of a witness in the trial of a notorious drug lord. The corpse was in the final stages of decomposition so there was no tissue and all insects had dispersed. Based on testimony of an associate of the deceased, mercury
poisoning was suspected. What would you test to determine that the victim was exposed to mercury?

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?

Aforce is a vector quantity because it has both?