Which of the following would reduce water flow in a pipe? select all that apply. the pipe is widened. the pipe is lengthened. the pipe is constricted. the pipe is shortened. the pipe is curved.

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

How would doubling the made of an object change the objects potential energy

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.