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A proton enters a uniform magneticfield that is at a right angle to its velocity. The field strengthis 0.90 T and the proton follows a circular path with a radius of4.2 cm.
A. What is the magnitude of its linear momentum?
B. What is its kinetic energy?
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 13.1 rpm in 10.7 s. what force is required at the edge
at what temperature will h2 molecules have the same rms speed at o2 molecules have at 20oc? solve this problem without
Four identical particles each have charge q and mass m. They are free from rest at the vertices of a square of side L. How fast is each charge moving when their distance from center of the square doubles.
two ice skaters with masses of 53.5 kg and 75.9 kg are at the center of a 56.28-m-diameter circular rink. the skaters
Sharon has a mass of 60 kg and is standing on a giant skateboard that is initially at rest and has a mass of 30kg. what is the speed of the skateboard
The front, convex, surface of a lens made for eyeglasses has a radius of curvature of 12.4cm, and the back, concave, Calculate the focal length of the lens
Earth is about 150 trillion meters from the Sun, while Mars is about 230 trillion meters from the Sun. What is the gravitational force between Mars and Earth
When the minimum angle of deviation of a light ray passing through an isosceles triangular prism is 36 degrees and its vertex angle is 40 degrees, The angle of refraction of the light ray in the prism, in degrees
a solid disk is released from rest and rolls without slipping down an incline plane that makes an angle of 25degrees
The ball has the speed of 12.1 m/s and is moving in a direction of 33.4 degrees east of north, relative to the ground.
An electron is released in a region where there is a varying electric potential. Will the electron move toward the lower potential region or the higher potential region
A whistle of frequency 520 Hz moves in a circle of radius 80.0 cm at an angular speed of 12.0 rad/s. What are the lowest and highest frequencies heard by a listener a long distance away from the whistle and at rest with respect to the center of th..
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