While taking photographs in death valley on a day when the temperature is 52.0°c, bill hiker finds that a certain voltage applied to a tungsten wire produces a current of 1.000 a. bill then travels to antarctica and applies the same voltage to the same wire. what current does he register there if the temperature is −88.0°c? assume no change occurs in the wire's shape and size.

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?