Physics, 17.12.2019 17:31 oglilbrandon
A15.0-m length of hose is wound around a reel, which is initially at rest. the moment of inertia of the reel is , and its radius is 0.160 m. when the reel is turning, friction at the axle exerts a torque of magnitude on the reel. if the hose is pulled so that the tension in it remains a constant 25.0 n, how long does it take to completely unwind the hose from the reel?
Answers: 3
Physics, 21.06.2019 15:50
Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:
Answers: 1
Physics, 22.06.2019 15:30
To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0
Answers: 1
Physics, 22.06.2019 23:00
Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.
Answers: 1
A15.0-m length of hose is wound around a reel, which is initially at rest. the moment of inertia of...
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