Question 6 of 10 How is a scientific theory developed?

A. One scientist supports his or her hypothesis with an experiment.

B. A single experiment is carefully performed once.

C. Many different experiments are repeated many times.

D. An experiment is repeated over and over with the same results.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec