Physics, 19.09.2019 11:50 eheheh80ii
Newton's second law of motion is expressed as f = ma. a lawn mower is pushed over a length of grass. if the pushing force suddenly doubles what will happen to the lawn mower's rate of acceleration? the mass of the lawn mower is constant. a. the acceleration will double. b. the acceleration will decrease by half. c. the acceleration will remain constant. d. the acceleration will triple.
Answers: 1
Physics, 22.06.2019 07:00
The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?
Answers: 3
Physics, 22.06.2019 13:00
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Newton's second law of motion is expressed as f = ma. a lawn mower is pushed over a length of grass....
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