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Problem:
A proton executes helical motion in a uniform B field at a frequency of 820 kHz. It moves at an angle of 30â-¦ relative to the direction of the field. What is the magnitude of the B field?
A paperweight, when weighed in air, has a weight of W = 7.4N. When completely immersed in water, though, it has a weight of Win water = 4.40 N. Find the volume of the paperweight.
A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11× 10 -8 ?m, What must be the diameter of the wire
q1. a man lifts a 22.4 kg bucket from a well and does 6.7 kj of work. the acceleration of gravity is 9.8 ms2.how deep
A future geosynchronous space station will be used to collect solar energy. The energy is transmitted back to earth as an electromagnetic beam. how large are the station's solar panels
A truck accelerates uniformly from rest to 22.5 m/s in 6.1 s along a level stretch of road. Determine the average power required to accelerate the truck for the following values of the weight (ignore friction).
A sample of an ideal gas is at a temperature of 320 K. Calculate the average molecular kinetic energy of this sample
The mass of the motorcycle and driver is 348 kg. Find out the magnitude of the normal force that acts on the cycle.
In 9.7 s a fisherman winds 2.8 m of fishing line onto a reel whose radius is 3.0 cm, Determine the angular speed of the reel
A long solenoid of length of 50 cm and an area 40 cm^2 has 320 turns. what is the magnetic energy in the solenoid
If the motor has an efficiency of E = 0.87, what power must be supplied to the motor to raise the crate
A toy train is pushed forward and released at xi = 1.60 m with a speed of 2.60 m/s. It rolls at a steady speed for 1.30 s, and then one wheel begins to stick. The train comes to a stop 6m from its starting point. What is the train's acceleration a..
Soccer ball is kicked with a speed of 11.50 m/s at an angle of 30.0° above the horizontal. If the ball lands at the same level from which it was kicked, how long was it in the air.
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