If we want to describe work, we must have (a) an action which causes no movement or reaction. (b)a force and a movement in the opposite direction of the force.(c) a force and a movement in the same direction as the force. (d)an action which causes movement and an opposite reaction.
Answers: 2
Physics, 21.06.2019 20:20
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
Answers: 2
Physics, 22.06.2019 10:30
What are two different ways you could find the value of a? explain these methods.
Answers: 2
Physics, 23.06.2019 00:50
Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n
Answers: 1
Physics, 23.06.2019 01:20
What is the state of matter with a specific volume but no definite shape
Answers: 1
If we want to describe work, we must have (a) an action which causes no movement or reaction. (b)a f...
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