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A 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 N force along a rope at an angle of 20 degrees above the horizontal. (a) If the sled travels at a constant speed, find the drag force on the sled. (b) Find the work done by the dogs after pulling the sled for 1 km.
A 53.8 kg astronaut is on a space walk away from the shuttle when her tether line breaks. Determine the maximum distance she can be from the craft
What mass (in grams) of steam at 100 °C must be mixed with 287g of ice at its melting point, in a thermally insulated container, to produce liquid water at 65°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5. How far has the football traveled horizontally from its original position
A particle of mass M is at rest at x=1. The potential energy is given by U=-Ax+C. Assume that the force associated with U is the only force acting on the particle. Find the force acting on the block
Find the initial velocity and how long the ball was in the air before it hit the ground
A car drives straight off the edge of a cliff that is 58 m high. The police at scene of the accident observed that the point of impact is 121m from the base of cliff. How fast was the car traveling when it went over the cliff.
A dart is thrown horizontally with an initial speed of 6 m/s toward point P, the bull's-eye on a dart board. How far away from the dart board is the dart released in meters
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) draw a diagram showing the wire loop, what is the induced emf in the wire loop
An ideal gas, at initial temperature T1 and initial volume 2.0 m3, is expanded adiabatically to a volume of 4.0 m3 then expanded isothermally to a volume of 10 m3, and then compressed adiabatically back to T1.
With a 2 meter lever, the fulcrum is 30 cm from the load of 200 pounds. How much "effort" force will be needed to lift it, Which type of lever describes a wheelbarrow
q1. a ball in flight is recorded and analyzed using digital video analysis software. the analysis produced the result
Two long straight parallel wires are 12cm apart. Determine the force on wire A due to wire B, and the force on wire B due to wire A.
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