Physics, 21.05.2020 00:05 kelseypichla

If gravity is the only force present, what is the total mechanical energy of a
rock falling off a cliff at a time when its potential energy is 500 J and its
kinetic energy is 600 J?
A. 500 J
B. 100 J
C. 600 J
D. 1,100 J

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 16:30, xxaurorabluexx

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?

Answers: 1

continue

Physics, 23.06.2019 00:30, Ltik11900

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr

Answers: 2

continue

Physics, 23.06.2019 02:30, Braxtonw875

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?

Answers: 1

continue

Physics, 23.06.2019 03:00, Jenifermorales101

It is advised not to hold the thermometer by the bulb while reading it

Answers: 1

continue

You know the right answer?

If gravity is the only force present, what is the total mechanical energy of a
rock falling of...