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A baseball of mass 145 gram leaves the pitcher´s hand at 96.6 mi/h, but due to air resistance, it arrives at home plate 60.0 feet away traveling at 95.3 mi/h. Suppose that the magnitude of the balls acceleration is constant and that the ball travels a straight line(neglect gravity). Obtain how much work is done by friction during the flight of ball?
An electron and a positron, each moving at 3.0*10^5 m/s, collide head on, disappear, Determine the momentum of each photon
if you have two 10 microfarad capacitors in series with each other what is the equivalent capacitance of the
A space traveler weighs 550 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
an object is located 9.0 cm in front of a converging lens f 6.0cm. determine a distance of the image and b the height
An archer, about to shoot an arrow, is applying a force of +320 N to a drawn bowstring. What is the displacement of the bowstring
a rod has resistance r and is placed on parallel rails with negligible resistance within a magnetic field directed
A plane touches down for a landing with a ground speed of 120 mi/h (53.7 m/s). The runway is 1000 m in length and the plane stops at the end of the runway after slowing down with constant acceleration. What is the plane's acceleration while stoppi..
An artificial satellite circling the Earth completes each orbit in 128 minutes. (The radius of the Earth is 6.38 106 m. The mass of the Earth is 5.98 1024 kg.), Find the altitude of the satellite
A heat engine operates as a reversible Carnot cycle transfers 6.0 kW of heat from a reservoir at 1000 K, Calculate the power output of this engine
how does the angular separation between fringes in single-slit diffraction experiment change when the distance of
A meter stick of weight W leans away from a wall. The 0cm line is against the wall at the floor and it makes an angle theta with the wall. It is kept from falling by a horizontal string connected to the 80cm line. What is the tension (T) in the strin..
a spring with a spring constant of 500 nm is used to propel a 0.41-kg mass up an inclined plane. the spring is
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