Physics, 23.10.2019 00:00 anthonyfr10004
Long, long ago, on a planet far, far away, a physics experiment was carried out. first, a 0.210-kg ball with zero net charge was dropped from rest at a height of 1.00 m. the ball landed 0.350 s later. next, the ball was given a net charge of 7.70 μc and dropped in the same way from the same height. this time the ball fell for 0.650 s before landing. a. what is the electric potential at a height of 1.00m above the ground on this planet, given that the electric potential at ground level is zero? (air resistance can be ignored.)
Answers: 2
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Physics, 22.06.2019 15:50
The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?
Answers: 2
Physics, 22.06.2019 20:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Long, long ago, on a planet far, far away, a physics experiment was carried out. first, a 0.210-kg b...
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