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A railway wagon of mass 35t travels along a level track at 15km/h and collides with another wagon of mass 15t travelling in the opposite direction at 20km/h. After impact, the first wagon is seen to travel in direction as before with a velocity of 3km/h. Find the velocity of second wagon?
a person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 16.0 m. she pushes in a direction
A cube of aluminum 0.50 meter on a side is immersed one-fourth in water and three-fourths in glycerin. Determine the normal force on the cube in Newton
a bicycle tire of radius 0.33 m and mass 1.5 kg is rotating at 98.7 rads. what torque is necessary to stop the tire in
idetailed and elaborate responses to the following questions.nbsp your response to each should be a minimum of one
An inflatable bag is located in the dashboard of a car. In a collision, the bag expands abruptly and cushions the impact of the passenger. The forward motion of the passenger should be stopped in about 30 cm of motion if contact with the hard surface..
A 5.97kg block is traveling on a one-dimensional frictionless surface. The block strikes a second block of mass 5.08kg that was initially at rest, What was the initial momentum of the first block
A horizontal 100-turn rectangular coil is located in a uniform magnetic field of magnitude 0.900 T directed upward perpendicular to the plane of the coil. If the area of the coil increases linearly at the rate of 8.00 x 10-3 m2/s, what is the magn..
Two uniform, solid disks are rotating freely about the same axis. Then they are linked together without the aid of any external influences. Before being connected.
A particular engine has a power output of 4.00 kW and an efficiency of 23.0%. Assume the engine expels 7000 J of energy in each cycle. Find the energy absorbed in each cycle
A merry-go-round of radius R=2.0m has a moment of inertia I=250kg m^2, and is rotating at 10rpm. A child whose mass is 25 kg and is at rest grabs onto the edge of the merry-go-round. The new angular speed (in rpm) of the merry-go-round is approximate..
A 400kg piano slides 4.0 m down a 30 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Find out the force exerted by the man.
A circular loop carries a current I. It is placed in a constant magnetic field in such a way that the field lines are perpendicular to the lane of the circle
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