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Your friend's car runs out of fuel and you volunteer to push it to the nearest gas station. You carefully drive your car so that the bumpers of the two cars are in contact and then slowly accelerate to a speed of2 m/s over the course of 1 minute. If the mass of your friend's car is 1200 kg, what is the contact force between the two bumpers?
An object moves with constant acceleration 4.20 m/s2 and over a time interval reaches a final velocity of 11.0 m/s. What is the total distance it travels during the interval
A rigid (constant volume) container holds 4.6 moles of an ideal gas initially at 190 K and 2.0 atm. How much gas is in the container at the final pressure and temperature
An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 83.7 N, Jill pulls with 91.9 N in the northeast direction, Find the magnitude of the net force the people exert on the donkey
A school yard teeter-totter with a total length of 5.2m and a mass of 36kg is pivoted at its center. A 19 kg child sits on one end of the teeter-totter.
In an EM wave the electric field oscillates 4 X 10^14 HZ at in the North - South direction. In what direction is the magnetic field oscillating
A girl is strapped to a board that is moving so that gamma along the length of the board is 2.0. What is the length of the girl's board in your reference frame when she arrives
A child on roller skates undergoes an acceleration of 0.8 m/s2 due to a horizontal net force of 20 N. What is the mass of the child
An object is recovered from under the sea. Its weight is measured to be 71.5 lb and its volume 2.5 ft3. What is the object%u2019s weight density
In the conduction equation Q = (kA?T)t/L, the combination of factors kA/L is called the conductance. By what factor can the body adjust the conductance
A 200g block on a frictionless surface is pushed against a spring with spring constant 500N/m, compressing the spring by 2.0cm. at what speed does it shoot away from the spring
A person is running at 7 m/s with her hands outstreched abover her head (1.95m from feet to finger tips) she runs exactly horizontally off the edge of a chasm and attempts to grab onto opposite side.
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