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A stonewith a mass of 2.40-kg is released from rest and falls toward Earth(near the surface of the Earth). Use the impulse-momentum theorem to compute its momentum after falling for 4.00 seconds
Part 1:How could this problem be solved using the equations of kinematics?
Part 2:Why was the “land on the ground with no horizontalvelocity” condition added to this problem?
a worker drags a 310 kg crate at a constant velocity of 3 m/s, across a factory floor by pulling on a rope tied to the crate. What is the acceleration of the crate
question1two cars drive on a straight highway. at time t0 car 1 pass mile marker 0 travelling due east with a speed of
A horse is pulling a buggy. the total force by the horse is 475N applied horizontally. What is the force of friction on the driver and buggy
The meter detects the reflected sound waves and measures a beat frequency of .30X10^5Hz. Determine the speed of the baseball
Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.10 106 kg/s. If all the potential energy of this water were converted to electric energy, how much power would be produced by these falls?
A styrofoam cooler (k = 0.030 W/(m·K)) has outside dimensions of 0.270 m by 0.230 m by 0.280 m, and an average thickness of 2.6 cm. About how long would it take for 1.60 kg of ice at 0 °C to melt in the cooler if the outside temperature is 30.0 °C..
A walkway suspended across a hotel lobby is supported at numerous points along its edges by a vertical cable above each point and a vertical column underneath. how much does the point move down
A VW Beetle goes from 0 to 60 mi/hr with an acceleration of +2.35 m/s2. Find the acceleration (in m/s2) of the dragster
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charge, What is the magnitude of the charge on each object
A 6000kg truck stands on the deck of an 80000kf ferryboat. Initially the ferry is at rest and the truck is located at its front end. how far will the ferry move forward relative to the water
A heat pump is found to remove 2400 J of heat from the exterior of a house and deliver 3500 J of heat to the interior of the house
It takes an elevator 3.9 minutes to raise a vehicle with a mass of 380 kg from the floor to a height of 5 meters. What size (power) motor (in watts) does it take to do the job?
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