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Two objects with masses of 3.90 kg and 6.20 kg are connected by a light string that passes over a frictionless pulley, as in the figure below. (The figure shows a pulley with the two objects on opposite sides hanging vertically) (a) Determine the tension in the string. (Enter the magnitude only.) (b) Determine the acceleration of each object. (Enter the magnitude only.) m/s2 (c) Determine the distance each object will move in the first second of motion if both objects start from rest. m
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A block is released from rest on an inclined plane and moves 3.1 m during the next 3.9 s. What is the coefficient of kinetic friction k for the incline
A train car with mass m1 = 631 kg is moving to the right with a speed of v1 = 7.2 m/s and collides with a second train car with mass m2 = 723 kg. What is the final speed of the train cars latched together
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.35 diopters, and the lens-to-retina distance is 1.859 cm. How far is the blackboard from her eyes
A person with perfect pitch sits on a bus bench listening to the 450{\rm Hz} horn of an approaching car. how fast is the car moving
A car is traveling at 50.0 mi/h on a horizontal highway, What is the stopping distance when the surface is dry and µs = 0.601
A moving particle encounters an external electric field that decreases its kinetic energy from 8650 eV to 6910 eV as the particle moves from position A to position B. The electric potential at A is -56.5 V, and the electric potential at B is +28.1..
A total of 3.04 106 electrons are placed on an initially uncharged wire of length 1.23 m. find the magnitude of the acceleration of a proton
A golf ball is dropped from rest from a height of 8.10 m. It hits the pavement, then bounces back up, rising just 5.60 m before falling back down again. calculate the total amount of time that the ball is in the air
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. find The magnetic field at the center of this loop
What is the neA puck (mass m1 = 4.15 kg) slides on a frictionless table, What is the new speed of the puck, What is the change in the kinetic energy of the puck
A 1348 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 13.6 s, then the motor stops. The rocket altitude 29.6 s after launch is 2091 m. You can avoid any effects of air resistance. What was the rock..
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