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A tugboat exerts a constant force of 5090N on a ship moving at constant speed through a harbor. How muchwork does the tugboat do on the ship in a distance of 3.07 km?
a tiny .5 kg object moves on a frictionlesshorizontal table in a circular path of radius 1.0 m the angular speed is 6.28 rad/s the object is attached to a string ofnegligible mass that passes through a small hole in the table atthe center of the c..
Two very narrow slits are illuminated by monochromatic coherent light in air that has wavelength 560 nm, What is the distance between the two slits
An object is being acted upon by three forces and moves with a constant velocity. What is the direction of the third force
A thin uniform rod (length = 2.01 m, mass = 3.11 kg) is pivoted about a horizontal frictionless pin through one of its ends. What is the angular acceleration of the rod at the instant it is released
a toy cannon uses a spring to project a 5.39-g soft rubber ball. the spring is originally compressed by 4.93 cm and has
A rifle with a barrel length of 57cm fires a 12g bullet with a horizontal speed of 450m/s, What resistive force (assumed to be constant) does the wood exert on the bullet
Two 4.0 cm× 4.0 cm electrodes spaced 2.0 mm apart form a parallel-platecapacitor. What is the charge on each electrode
The Mini Cooper is rated at the maximum power of 115. hp (1 hp=746 W), when moving at 80km/h. Suppose that the net force accelerating the car is constant.
A mail bag with a mass of 100kg is suspended by a vertical rope of length 8.00m. What horizontal force is necessary to hold the bag in a position displaced sideways a distance 1.00m from its initial position
Bicyclists in the Tour de France do enormous amounts of work duringa race. How much work does he do during a 85 km race in which his average speed is11.0 m/s
A steel tank contains 314 g of ammonia gs (NH3 with molar mass 17.0 g/mol) at a pressure of 1.55 x 106 and a temperature of 51.4oC. What is the volume of the tank in liters
A hydrogen atom initially in its ground state absorbs a photon and ends up in the n=6 state. Calculate the energy of the incident photon
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