Astudent stands on a bathroom scale in an elevator at rest on the 64th floor of a building. the scale reads 836 n.
a) as the elevator moves up, the scale reading increases to 935 n, then decreases back to 836 n. find the acceleration of the elevator.
b) as the elevator approaches the 74th floor, the scale reading drops as low as 782 n. what is the acceleration of the elevator?

Which of the following energy forms are invovled in a nuclear power plant ? heat ,sound , electrical , nuclear ,mechanical

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance