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A car heading north collides at an intersection with a truck heading east. If they lock together and travel at 28m/s at 14ºnorth of east just after the collision, how fast was the car initially traveling? Assume that the two vehicles have the same mass.
Two flat surfaces are exposed to a uniform, horizontalmagnetic field of magnitude 0.58 T. The first surface is tilted atan angle of 21° from the horizontal, and a net magnetic flux of6.4 x 10-4 Wb passes through it.
An observer, whose eyes are 1.96 m above the ground, is standing 32.0 m away from a tree. How tall is the tree
An egg rolls off a kitchen counter and breaks as it hits the floor. How large is the impulse that the floor exers on the egg, and how large is the force exerted on the egg by the floor when stopping it? The counter is 1.0mhigh, the mass of the egg is..
Calculate the buoyant force acting on you due to the air you displace. Evaluate the density of air at ground level
Write Ehrenfest's theorem for the mean values of the position X and the momentum P of the particle. Integrate these equations; compare with the classical motion. Show that the root-mean-square deviation ΔP does not vary over time. Write the Schroding..
A train 400m long is moving on a straight track with a speed of 84.30km/h. The engineer applies the brakes at the crossing and later the last car passes crossing with the speed of 17.7 km/h. suppose constant acceleration; conclude how long the tra..
A disk between vertebrae in the spine is subjected to a shearing force of 590 N. Find its shear deformation taking it to have the shear modulus of 1 x 109 N/m2
Two long, straight wires are separated by 0.12 m. The wires carry currents of 1.0 A in opposite directions, as the drawing indicates. Find the magnitude of the net magnetic field at the point A
Show that the frequency of revolution of the electron in the Bohr model hydrogen atom is given by y= 2|E| /hn where E is the totalenergy of the electron.
a laser beam of unknown wavelength is incident on a single slit of width 0.25 mm and forms a fraunhofer diffraction
A Meteorite Strikes On October 9, 1992, a 27-pound meteorite struck a car in Peekskill, NY, leaving a dent 22 cm deep in the trunk. If the meteorite struck the car with a speed of 130 m/s , what was the magnitude of its deceleration, assuming it t..
a boy of mass 50.5 kg is initially on a skateboard of mass 2.00 kg moving at a speed of 10.3 ms. the boy falls off the
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