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A 1200 kg car is traveling initially with a speed of 25.0 m/sin an easterly direction crashes into the rear end of a 9000kg truck moving in the same direction at 20.0 m/s. The velocity of thecar right after the collision is 18.0 m/s to the east.
a) What is the velocity of the truck right after the collision?
b) How much mechanical energy is lost in the collision?Account for this loss in energy.
A horizontal force of 2.8 N is applied to a 1.2- kg radio, initially at rest on a table with a level surface. What is the coefficient of friction if it just begins to move
block A which is 19.3 N is placed on a frictionless ramp that is inclined at 15 degrees. Block B which is 15.7 N is placed on top of the block, estimate the tension in the cord
The potential difference across a resting neuron in the human body is about 105.0 mV, How much power does the neuron release
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 5.84 m/s2
Determine the moment of inertia for three children weighing 61.0 lb, 47.0 lb and 81 lb sitting at different points on the edge of a rotating merry-go-round, which has a radius of 12 ft.
A flat sheet of crown glass has a thickness of 2.3 cm. It is on top of a flat sheet of crystalline quartz that has a thickness of 1.6 cm. how far would it have traveled in a vacuum
A bird feeder in the shape of a 50-cm-diameter disk of mass 340 g, suspended by a wire with torsional constant 5.00N?m/rad, What is the mass of the birds, assuming they have the same mass
A father racing his son has three-fifths the kinetic energy of the son, who has half the mass of the father. What is the original speed of the son
A 0.45kg mass is attached to a spring with a force constant of 21N/m and released from rest a distance of 3.6cm from the equilibrium position of the spring, How far is the mass from the equilibrium position
Three lamps with resistances 1 ?, 2 ? and 3 ? are connected in series in a circuit with a voltage source of 12V. Calculate the voltage drop across each lamp
A large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20° with respect to the horizontal. How far will the crate move in 10 seconds
An Olympic long jumper leaves the ground at an angle of 19.8 ° and travels through the air for a horizontal distance of 8.17 m before landing. What is the takeoff speed of the jumper
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