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A thin, light wire is wrapped around the rim of a wheel, as shown in the following figure. The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. The wheel is a uniform disk with radius 0.270 m. An object of mass 4.35 kg is suspended from the free end of the wire. The system is released from rest and the suspended object descends with constant acceleration.
If the suspended object moves downward a distance of 3.15 m in 2.07 sec, what is the mass of the wheel?
the plates of a fabry-perot interferometer have a reflection coefficient r 0.99. calculate the minimum resolving power
A very long 2.00 cm diameter lead rod absorbs 410 kJ of heat. By how much does its length change? What would happen if the rod were only 2.0 cm long
A surfer is riding a wave. Suppose she starts at the top of the wave with a speed of 1.87 m/s, how much work is done by the (non-conservative) force of the wave
two cars start off at rest 85 m apart. They start driving directly towards each other. How far from car 1 do the cars collide
A solid piece of aluminum "weighs" 57.6 g in air and 26.5 g when submerged in a liquid. (a) What is the volume of the metal piece? (b) What is the mass density of the liquid?
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
An unstable particle called the pion has a mean lifetime of 25 ns in its own rest frame. What is the mean lifetime of the pions as measured in the laboratory frame
A projectile is launched with a speed of 18m/s at an angle of 65 degrees to the horizontal. What is the maximum range of the projectile
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.675 s to reach the opposite tower, 20.0 m away. If a 1 meter length of ..
A 3800-kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. what is the speed of the car after 90.0 min
King Arthur's knights fire a cannon from the top of the castlewall. The cannonball is fired at a speed of 57 m/s and an angle of37°. How far from the castle wall does the cannonball hit the ground
What is the work completed by the block and tackle system?
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