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A batter strikes a baseball moving horizontally towards him at 15 m/s. the ball leaves the bat horizontally at 24 m/s, 40 degrees to the left of a line from the plate to the pitcher. the ball is in contact with the bat for .01 s. determine the change in velocity of the ball and its average acceleration while being hit by the ball.
A uniform plate of height 1.920 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 1.000 x2. The plate has a mass of 1.17 kg.
A bowling ball encounters a 0.76 m vertical rise on the way back to the ball rack, as the drawing illustrates. find the translational speed at the top
A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.544 eV makes a transition to a state, What is the energy of the photon emitted as a result of the transition
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.209 m and mass 4.70 kg, and two thin crossed rods of mass 9.95 kg each. what should the radius of the disk be
An ultralight plane and pilot have a total mass of 127 kg. find the net force acting on the plane and pilot
q1. the active element of a certain laser is made of a glass rod 33.0 cm long and 1.60 cm in diameter. assume the
A professor's office door is 0.94 wide, 2.2 high, 4.0 thick; has the mass of 23, and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5..
A resistor with R = 2.4 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 41 V. Find the average power dissipated in the resistor
Find the magnitude of the impulse delivered to a football when aplayer kicks it with a force of 1275 N.Assume that the player's foot is in contact with the ball for0.00594 s
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 s..
bartender slides a beer mug at 1.2 m/s towards a customer at the end of a frictionless bar that is 1.3 m tall. What are the speed and direction of the mug at impact
Determine out the magnitude of the average force that the water exerts on the diver. This force is neoconservative.
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