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A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.979 rad/s. You, with a mass of 70.3 kg, walk clockwise around the platform along its edge at the speed of 1.11 m/s with respect to the platform. Your 20.3-kg poodle also walks clockwise around the platform, but along a circle at half the platform\'s radius and at half your linear speed with respect to the platform. Your 18.5-kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform\'s radius from the center. Model the platform as a uniform disk with mass 90.9 kg and radius 1.81 m. Calculate the total angular momentum of the system.
A 0.016-kg bullet traveling at 203.6 m/s east hits a motionless 1.9-kg block and bounces off it, retracing its original path with a velocity of 100.7 m/s west. What is the final velocity of the block
A small solid sphere, with radius 0.25 cm and mass 0.56 g rolls without slipping on the inside of a large fixed hemisphere with radius 15 cm, What is its kinetic energy at the bottom
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How fast will the shell be traveling when it hits the ground
An electron is projected vertically upward with a speed of 1.50 * 10^6 m/s into a uniform magnetic field of 0.200 T, What is the radius of motion
1.a car uniformly decelerates at a rate of -5.00 ms2. how far does the car travel after 1.50 seconds if it initially
Two toy locomotives approach each other along the same line, and upon collision both stop dead still. What is the mass of the faster locomotive
The lens of an endoscope is carefully matched such that the light ray from the edge of the lens enters the fiber at an angle. What focal length should the lens have
A series RLC circuit consists of a 100 ? resistor, a 0.190H inductor, and a 42.0 ?F capacitor. It is attached to a 120 V/60 Hz power line. What is the average power loss
A trumpet player standing at rest plays a note of frequency 1200 hertz. Determine the speed of the automobile
A person uses corrective glasses of power -8.5 D. If the glasses are worn 2.0 cm from the eye, what is the person's far point without glasses
A ball is thrown horizontally from the top of a 75 m building and lands 130 m from the base of the building, What is the vertical component of the velocity just before the ball hits the ground in m/s
A 0.534-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
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