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A batter strikes a baseball moving horizontally towards him at 15 m/s. This ball leaves the bat horizontally at 24 m/s, 40o to the left of the line from the plate to the pitcher. The ball is in contact with the bat for 0.01second. Find the change in velocity of the ball and find the average acceleration while being hit by the bat.
A charge of 3.0 micro coulombs and a second charge are initially far apart. If it takes 29 J of work to bring them to a final configuration in which the 3.0 micro coulombs is at x = 1.0 mm,
A parallel plate capacitor of capacitance 4.3 µF has the space between the plates filled with a slab of glass with ? = 3.9. Find the capacitance after the glass is removed
Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of6.42 rad/s. Obtain the moment of inertia of the system
The radius of the moon is about 0.273 times the earth radius, its mass is about 0.0123 times the mass of the earth. Calculate your weight on the moon
A particle with a charge of 38 uC moves with a speed of 70 m/s in the positive x direction. What is the magnitude of the magnetic force on the particle
A red car and a blue car are both travelimg east, with the red car 250 m behind the blue car. how far will the blue car travle before the red car cathes up and passes it
The tropical year, the time from vernal equinox to the next vernal equinox, is the basis for our calendar. Find the number of seconds in one and a half tropical years
A very long, straight wire carries a current of 0.17 A. This wire is tangent to a single-turn,circular wire loop that also carries a current. The directions of the currents are such that the net magnetic field at the center ofthe loop is zero.
nichrome wire of cross-sectional radius 0.786 mm is to be used in winding a heating coil. if the coil must carry a
When she lets go of the rope her initial velocity is 2.25 m/s at an angle of 35 degrees above the horizontal. If she is in flight for .616 s, explain how high above the water was she when she let go of the rope?
a solid aluminum ingot weighs 71.0 n in air. a. what is its volume? b. the ingot is suspended from a rope and totally
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s, What is the work done on the ball by the racket
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