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A uniform magnetic field of 0.15 T is directed along the positive x-axis. A positron moving at 5.0 x 10^6 m/s enters the field along a direction that makes an angle of 85° with the axis. The motion of the particle is expected to be a helix. Calculate the pitch and the radius of curvature of the particle's path.\ Show all steps in detail to get five star rating.
A rod flies with constant velocity past a mark which is stationary in the K frame. In the K frame, it takes the rod Deltat = 20 ns to fly pass the mark. In the K' frame fixed to the rod, the mark moves past the rod in Deltat' = 25 ns. Find (a) the ve..
The inner and outer shells are connected by a wire (passing through a hole in the middle shell, without touching it), so they are at the same potential.
Consider a standing wave on the string with a frequency equal to the fifth harmonic (fn = nf1 with n = 5). How many nodes and antinodes does this standing wave possess.
A sound wave from a siren has an intensity of 86.2 W/m2 at a certain point, compute the intensity level of the sound wave due to the ambulance
Mary is driving her car at 48 km/h. She approaches an intersection just as the traffic light turns yellow. The yellow light lasts only 3.0 s before turning to red, and she is 30 m away from the near side of the intersection.
As a person walks, the femur (upper leg bone) slides in a socket in the hip, Find the frictional force on the bone in the hip joint
A supertanker (mass = 1.61E+8 kg) is moving with a constant velocity. Determine the magnitude of the resistive force exerted on the tanker by the water
A 2000 kg submarine rises straight up to the surface of the ocean. what is the submarine's acceleration
Two events occur in an inertial system at the same time, but 8145 km apart. What is the time difference between the two events in this second inertial system
A 9.58-m ladder with a mass of 22.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 264 N. What is the net torque acting on the ladder
In the Bohr model of hydrogen, the electron moves in a circular orbit around the nucleus. Determine the angular speed of the electron
A truck covers 40.0 m in 7.35 s while uniformly slowing down to a final velocity of 3.40 m/s, Find the truck's original speed
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