Physics, 27.03.2020 02:25, cerickson2481
A block having mass M M slides on a frictionless surface and collides with a block of mass 2 M , 2M, which is initially at rest. After the collision, the small block is at rest and the larger block is moving to the right with speed V / 2 . V/2. Is this collision elastic?
Answers: 3
Physics, 21.06.2019 19:30, jonquil201
The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.
Answers: 2
Physics, 22.06.2019 00:20, alyvia05
Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
A block having mass M M slides on a frictionless surface and collides with a block of mass 2 M , 2M,...
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