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A(n) 0.47 kilogram soft ball is pitched at a speed of 20 m/s. The batter hits it back directly at the pitcher at a speed of 26m/s. The bat acts on the ball for 0.02 second.
a) Find the magnitude of the impulse imparted by the bat to ball? Answer in units of N • s.
b) Find the magnitude of the average force exerted by the bat on ball? Answer in units of N.
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 13.00 m long, weighs 21.67 N, Calculate the rotational inertia of the rod
A mass-spring system oscillates with an amplitude of 4.40 cm. If the spring constant is 237 N/m and the mass is 411 g, Determine the maximum speed of the object
Linear Spring has a length of 180 mm the tension in it is 170 N. For a length of 160 mm The compressive force in it is 120 N. Determine is the stiffness of the spring? In N/m and lb ft. Determine is the unscratched length of the spring? In m and ft.
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0500 kg and is moving along the x axis with a velocity of +7.08 m/s. It makes a collision with puck B, which has a mass of 0.100 kg and is initially at res..
a stone is dropped from the roof of a high building. a second stone is dropped 2.00 rm s later. how far apart are the
a car traveling 85 kmhr strikes a tree. the front end of the car compresses and the driver comes to a rest after
A wedding ring (of diameter 1.7 cm) is tossed into the air and given a spin, resulting in an angular velocity of 12 rotations per second. The rotation axis is a diameter of the ring. Taking the magnitude of the Earth's magnetic field to be 4.3 10-5 T..
Express your reply in terms of the cylinder's radius r and the magnitude of the acceleration because of gravity g.
the components of an airplane's motion are described as: 193 m/s west and 151 m/s south. determine the speed of the airplane
Proper design of automobile braking systems must account for heat buildup under heavy braking.
Consider a visual binary star system with a period of 55.41 years. Its measured trigonometric parallax is 0.4217'' and, assuming that the plane of the orbit is in the plane of the sky, the true angular extent of the semi-major axis is 6.69''.
If the speed of the aircraft is 684 km/h and the radius of the circle is2.0 {\rm km}, calculate the normal force exerted on seat with the pilot at the bottom of the loop. Express your answer in terms of the pilot's weight W.
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