Physics, 12.01.2021 08:50 kandikisses5594
25 POINTS PLEASE HELP ME ASAP
A cart is moving on a flat surface that has negligible friction. What will happen to its speed?
The cart's speed will increase
The cart's speed will stay constant
The cart's speed will decrease
The cart's speed will initially increase, and then decrease
Which statement about the speed of a chair is correct?
After I push a chair on a frictionless surface, the chair will speed up forever because there is no friction
After I push a chair on a frictionless surface, the chair will move at a constant speed for a while, but eventually slow down because the energy will run out.
After I push a chair on a frictionless surface, the chair will move at a constant speed because there is no longer an energy transfer
After I push a chair on a frictionless surface, the chair will stop because there is no longer a transfer of energy from the hand to make it move
Answers: 3
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An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.
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Physics, 22.06.2019 17:00
Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?
Answers: 1
Physics, 22.06.2019 18:30
Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s
Answers: 1
25 POINTS PLEASE HELP ME ASAP
A cart is moving on a flat surface that has negligible friction. What...
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