A student wants to make a model to show how friction works. Which of the following ideas best demonstrates friction?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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?

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical