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A bat hits a 0.145-kg ball. Initially, the ball travels to the right at 50 m/s, and after being hit it travels to the left at 30 degrees from the horizontal with a speed of 65 m/s. Obtain (a) the momentum applied to the ball, (b) the average force exerted on the ball while in contact with the bat for 1.75 ms.
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. If the bewildered hare can accelerate at 8 m/s2 up to his top speed of 17 m/s (38 mi/h) and sustain that s..
a parallel plate capacitor with a surface charge density of 23.7 micro-coulombm2 is aligned such that its plates are
question a ray of light in air strikes a glass plate n 1.50 at an incidence angle of 500. determine the angles of the
An ice skater with mass of 50 kg pushes off from the wall of an ice rink. How much work is done on the skater by the wall
A uniform beam having a weight of 60 N and a length of 3.2 m is hinged at its lower end and acted on by a horizontal force F of magnitude 50 N at is upper.
A trumpet creates a sound intensity level of 1.28 102 dB at a distance of 0.90 m. what is the sound intensity of a trumpet at this distance? What is the sound intensity of five trumpets at this distance?
Assume that the plane reaches the required takeoff velocity at the end of the runway. Show your complete solution
What is the net torque about the origin on a flea located at coordinates (0 m,-8 m, 4 m) when forces F1 = ( 3 N) k and F2 = (-2 N) j act on the flea? i-component of torque?
A 20 kg floodlight in a park is supported at the end of ahorizontal bean of negligible mass that is hinged to a pole asshown below.
question a solid sphere of weight 36.0 n rolls up an incline at an angle of 30.0deg. at the bottom of the incline the
A vertical straight wire carrying a 9.0 A current exerts an attractive force per unit length of 7.0X10^-4 N/m on a second parallel wire 8.0 cm away
A solid cylinder of mass 10 kg is pivoted about a frictionlessaxis through the center O. What is the angular acceleration of the cylinder
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