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A horse draws a sled horizontally on snow at constant speed. The horse can produce a power of 1.155 hp. The coefficient of friction between the sled and the snow is 0.115, and the mass of the sled, including the load, is 191.2 kg. What is the speed with which the sled moves across the snow?
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 29.8 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
A new electric power plant has an efficiency of 42%. how many are essentially lost as waste heat (in barrels of oil) to the environment
What are the magnitudes of the (a) impulse and (b) average force on the passenger during the collision? If the passenger were to jump upward with a speed of 6.00 m/s relative to the cab floor just before the cab hits the bottom of the shaft, what ..
A sphere of styrofoam with a density of 152 kg/m3 has a 45 cm diameter. what is the maximum iron mass that can be suspended by a string from it so that it does not sink
What apparent free-fall acceleration is experienced by the managers remaining on the rim assume that the average mass for each inhabitant is 65kg.
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.00 x10-4 m2, and the speed of the water is 0.87m/s as it leaves the faucet.
Consider a rectangular metal loop of length of 0.15m and width of 0.08m. Determine the emf induced in the wire on the left side of the loop
A 270 pF capacitor is charged to a potential difference of 60 V, and the charging battery is disconnected. Calculate the dielectric constant of the inserted material
A ball is thrown from the top of a building upward at an angle of 39degrees to the horizontal and with an initial speed of 24m/s. The ball is thrown at a height of 57 m above the ground and hits the ground 98.55 m from the base of the building. Wh..
A 72 kg man in a 5-kg chair tilts back so that all weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with the radius of 1.0 cm, and find out the pressure exerted on the floor by eac..
How much work should Denise do to drag her basket of laundry of mass 6.0 kg a distance of 3.0 m along a floor, if the force she exerts is a constant 50.0 N at an angle of 70.0° with the horizontal.
A very light rigid rod with a length of 0.500 m extends straight out from one end of a meter stick. Determine the period of oscillation
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