4. A string is wrapped around a cylinder of mass mand
radius R. The string is pulled vertically upwards to
prevent the centre of mass from falling as the cylinder
unwinds the string. Find:
(a) The tension in the string
(b) The work done on the cylinder when it acquires
an angular velocity
(c) The length of the string unwound in the time the
angular speed reaches W
Answers: 3
Physics, 21.06.2019 22:30
A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?
Answers: 1
Physics, 22.06.2019 11:30
If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal
Answers: 1
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, 23.06.2019 01:00
To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.
Answers: 1
4. A string is wrapped around a cylinder of mass mand
radius R. The string is pulled vertically up...
Mathematics, 19.05.2021 22:40
Chemistry, 19.05.2021 22:40
Mathematics, 19.05.2021 22:40
Mathematics, 19.05.2021 22:40
Mathematics, 19.05.2021 22:40
Spanish, 19.05.2021 22:40
Social Studies, 19.05.2021 22:40
Mathematics, 19.05.2021 22:40