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A beam of protons moves in a circle of radius 0.34 m. The protons move perpendicular to a 0.29-T magnetic field. (a) What is the speed of each proton? (b) Determine the magnitude of the centripetal force that acts on each proton
A shotgun blast of 140 decibels occurs with humidity of 70% and temperature of 50 degrees. Illustrate what is the decibel level at 100 yards away? At 200 yards
During a bad weather day with an atmospheric pressure of 0.9 atm a submarine dives at a depth of 9.3 m.
Suppose a car is traveling at +20.4 m/s, and the driver sees a traffic light turn red. obtain the stopping distance of the car
A cyclist is using cranks with a length of 17cm and a front sprocket of radius 10cm. while standing up she places her body weight onto the forward pedal. the crank is initially horizontal and the force in the pedal is equal to body weight. cyclist..
You throw a bouncy ball directly down toward the ground. When it leaves your hand, 1 m above the ground, it is moving at 5 m/s. What is the ball's maximum height after it bounces
A horizontal pipe carries oil whose coefficient of viscosity is 0.800 N·s/m2. The diameter of the pipe is 57.0 cm and its length is 53 km. (a) What pressure difference is required between the ends of this pipe if the oil is to flow with an average..
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
if the current through a loop radius 50 cm is 2A, what is the magnetic field produced by the loop wire
A spring k=600N/m is placed in a vertical position with its lower end supported by a horizontal surface. What is the kinetic energy of the block at the instant it has fallen 0.50m (compressing the spring0.10m)
A solid sphere and a solid cylinder with the same mass and radius roll down an inclined plane without slipping. Which one will reach the bottom of the incline first. Explain why. Assume friction is negligible for both.
A bicycle racer is traveling at 10 m/s with an acceleration of 0.5 m/s^2. The radius of the bicycle wheel is 33 cm. What is the angular velocity of the bicycle wheels
at the instant the traffic light turns green an automobile starts with a constant acceleration a of 2.2 ms2. at the
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