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A charged particle with a charge-to-mass ratio of |q|/m = 5.7 × 108 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is0.71 T. How much time does it take for the particle to complete one revolution?
The activity of a freshly prepared radioactive sample is 1010 disintegrations per second, whose mean life is 109 s. find the mass (in mg) of the radioactive sample
A car is traveling down a hill that makes an angle of 13° with the horizontal. The driver applies her brakes, evaluate the acceleration of the car
An 80 kg skydiver falls through air with a density of 1.15 kg/m3 . Assume that his drag coefficient is C=0.57. What are the terminal speeds in both cases
A child goes down a playground slide with an acceleration of 1.34 m/s2. Compute the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0° below the horizontal.
Jack and Jim are resting on an offshore raft after a swim. They estimate that the horizontal distance between a trough, Calculate how fast the waves are moving
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.00e-4 m3 and its mass is 3.48 kg. (a) What mass of gold is contained in the rock in kg? (b) What percentage of the rock is gold by volume? (..
An electromagnetic wave with frequency 56.0 Hz travels in an insulating magnetic material that has dielectric constant 3.72, What is the speed of propagation of the wave
A liquid compresses 2.0 percent when subjected to a pressure of 34 MPa. What is the bulk modulus of the liquid
Velocity and time for the moving particle.
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
A toy top has a string wrapped around its body. The string has a length of 64cm and is wrapped around the top at a place where its radius is 2.0cm. What is the final angular velocity in rpm of the top when the string is completely unwound
A spring is hanging from the ceiling. Attaching a 440gg mass to the spring causes it to stretch 18.0cmcm in order to come to equilibrium. What is the maximum speed of the mass
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