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1 if a person pushed on a door with a force of 650 n and a moment arm of 075 meters what would be the moment created2 a
1 there is an analogy between rotational and translational physical quantities identify the rotational term analogous
1 during the later portion of the swing phase of a walking stride the knee is extended from 35 degrees initial to 10
hydrogen atomthe radial probability density for an electron is r2r2r that means that the probability of finding an
1 is it possible for the frictional force to increase the mechanical energy of a system2 how a cars airbag works in
a consider a system of 2 particles particle 1 has spin 1 and particle 2 has spin 12 let s be the total angular momentum
a yo-yo has a rotational inertia of 1180 gmiddotcm2 and a mass of 148 g its axle radius is 358 mm and its string is 139
1 earths acceleration during eclipseswhat is the percentage change in the acceleration of earth toward the sun when the
suppose that an electron is a small spherical shell of mass m with a charge e spread over its surface show that the
for a hurricane of radius 330 km the eye is a circular area whose radius is about 10 that of the entire hurricane if
muonir atoms and the size of the nucleus the negative muon symbol pf is a particle with the same charge as the electron
you made a stop at an intersection and then you are just about to drive across just entering the intersection with a
an object at rest on a frictionless surface is struck by another object is it possible for both objects to be at rest
a track consists of a frictionless arc xy which is a quarter-circle of radius r and a rough horizontal section yz block
a zero-momentum spinner has a momentum wheel spinning at 5000 rpm the angular momentum of the wheel is 100 n-m-sa what
if a wire is placed next to the face of a permanent magnet and a current sent through the wire then a lorentz force is
in a shipping company distribution center an open cart of mass 530 kg is rolling to the left at a speed of 540 ms see
1 a 030 kg puck initially at rest on a frictionless horizontal surface is struck inelastically by a 020 kg puck that is
an electron moving to the left at 08c collides with an incoming photon moving to the right after the collision the
1 a 25-kg ball and a 50-kg ball have an elastic collision before the collision the 25-kg ball was at rest and the other
1the two masses in the atwoods machine shown in the figure below are initially at rest at the same height after they
a linearly polarized electromagnetic wave is incident on the plane interface between air and an isotropic medium of
a height of a projectilea projectile is fired straight up from the south pole of earth with an initial speed of 80kms
for the following problems the answers are given show the calculations to arrive at the correct answers11200 kg car
a meteor is moving at a speed of 32000 kmhr relative to the centre of earth at a point 560 km from the surface of the