Physics, 23.11.2019 03:31 clairesmom
Anonuniform bar is suspended at rest in a horizontal position by two massless cords. one cord makes the angle θ = 36.9° with the vertical; the other makes the angle phi = 53.1° with the vertical. if the length l of the bar is 6.10 m, compute the distance x from the left end of the bar to its center of mass
Answers: 3
Physics, 21.06.2019 15:20
Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. half way betwween the two plates the electric field has magnitude e. if the separation of the plates is reduced to d/2 what is the magnitude of the electric field half way between the plates?
Answers: 2
Physics, 22.06.2019 11:50
The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
Answers: 1
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Anonuniform bar is suspended at rest in a horizontal position by two massless cords. one cord makes...
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