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A 500 g ball swings in a vertical circle at the end of a 1.5-m-longstring. When the ball is at the bottom of the circle, the tensionin the string is 15 N. What is the speed of the ball at that point?
Long, long ago, on a planet far, far away, a physics experiment was carried out. First, a 0.250- ball with zero net charge was dropped from rest at a height of 1.70. The ball landed 0.400 later. Next, the ball was given a net charge of 7.85 and dropp..
a popgun uses an ideal spring for which k=2000N/m. how high can the gun shoot a 5.0gram projectile
The angle between the electric field vector and the vector normal to the rectangular plane is 65.0 degrees. Illustrate what is the electric flux through the rectangle?
An automobile crankshaft transfers energy from the engine to the axle at the rate of 53.6 kW when rotating at a speed of 1250 rev/min. What torque does the crankshaft deliver?
In a certain RLC circuit, a46-? resistor, a11-mH inductor, and a 5-µF capacitor are connected in series with an AC power source for whichVrms=12V andf= 100 Hz.
The organ pipe in the figure(Figure 1) is 2.80 long, What is the fundamental frequency of this pipe
An electric generating plant boils water to produce high- pressure steam. The steam spins a turbine that is connected to the generator. How many liters of water must be boiled to fill a 6.0m3 boiler with 52atm of steam at 440oC
A particle's velocity is described by the function vx= t^2? 9t+4m/s, where t is in s. How many turning points does the particle reach
during a nascar race a car goes 50 ms around a curved section of the track that has a radius of 250 m. what is the cars
If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, throughout how various revolutions will the rotor turn before coming to rest.
A 64-kg runner rounds a circular track of radius 63.7 m at a constant 5.30 m/s. Find the magnitude of her momentum changes after she has gone one-fourth of the circle
After a day of testing race cars, you decide to take your own 1478 kg car onto the test track. While moving down the track at 11.7 m/s, you suddenly accelerate to 28.8 m/s in 12.6 s. What average net force have you applied to the car during tha..
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