Physics, 21.09.2019 00:20 haydenoo72
The position vector of an object of mass 0.5 kg is given by r 2.0t2i+ 3.0tj m where t represents time. which one of the following statements is false when a time of t 2.0 s has elapsed. a) the object has moved a distance of 10 m. b) the momentum of the object is 41+1.5/ kg. m.s c) the kinetic energy of the object is 18 j d) the force on the object acts perpendicular to the direction of the unit vectorj e) the magnitude of the force acting on the object is 4 n
Answers: 3
Physics, 22.06.2019 08:00, jpsaad00
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
Answers: 3
Physics, 22.06.2019 11:30, genyjoannerubiera
A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
Answers: 2
Physics, 22.06.2019 18:00, pleasedontspamme
Consider an ideal gas at 27.0 degrees celsius and 1.00 atmosphere pressure. imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. what is the length l of an edge of each small cube if adjacent cubes touch but don't overlap?
Answers: 2
The position vector of an object of mass 0.5 kg is given by r 2.0t2i+ 3.0tj m where t represents tim...
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