Physics, 31.07.2019 21:40 IsabelAyshi
A90-kg astronaut is stranded in space at a point 6.0 m from his spaceship, and he needs to get back in 4.0 min to control the spaceship. to get back, he throws a 0.50-kg piece of equipment so that it moves at a speed of 4.0 m/s directly away from the spaceship. (a) does he get back in time? (b) how fast must he throw the piece of equipment so he gets back in time?
Answers: 1
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The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation
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Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
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Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
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A90-kg astronaut is stranded in space at a point 6.0 m from his spaceship, and he needs to get back...
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