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A CD has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 19 rad/s in 0.78 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.
A metal hoop of mass 2.5 kg and with a radius of 0.5 m rolls smoothly without slipping along a floor with a velocity of 2 m/s. What is the maximum vertical height reached by the hoop
A fighter jet landing on an aircraft is made to brake very quickly by means of cable that the plane connects to via a hook. Assume that a 21,000 lb jet touches down at 170 mph and its speed is reduced to zero in 240 ft Assuming constant deceler..
A possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer. how thick would you make the coating
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. the wheel is initially spinning at a rate of 85 rev/min. what is moment of inertia of the disk
A car was moving on the highway at a speed of 90 km/h. The driver then stepped on the gas and started to accelerate uniformly at a rate of 0.26 m/s2, and he was able to overtake a truck in 35 s. What was the final speed of the car after this time?
A 3 meter long cylindrical support beam (diameter 1 cm) increases in length by 3 mm. how much tension does the beam experience
A student standing on the ground throws a ball straight up. How long is the ball in the air before it hits the ground
Two polarizers are aligned to the angle between their polarization direction is 45 degrees. what fraction of the incident intensity is transmitted though the second
a soldering iron uses an electric current in a wire to heat the tip. a transformer with 100 turns on the secondary coil
Starting from rest, a 5.3 kg blockslides 2.1 m down a rough 30.0°incline. The coefficent of kinetic friction between the block andthe incline is µk = 0.436. Determine the work done by the force of gravity
A cylinder with a ,ovable piston contains gas at a temp of 27degree C, a whole volume of 1.50 m cubed and an absolute pressureof 0.200 X 10 ^ 5 pa. What will be its final temp if the gas is compressed to 0.700 m cubed and the absoulte pressure increa..
A parallel plate capacitor with plates of area 320 cm.^2 is charged to a potential difference V and is then disconnected from the voltage source, What is the charge on the positive plate of the capacitor
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