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In an Atwood machine, one block has a mass of M1 = 560 g and the other has a mass of M2 = 460 g. The pulley, which is mounted in horizontal frictionless bearings, has a radius of 5.0cm and a mass of 5.6kg. When the masses are released... a.) What is the acceleration of the masses? b.) What is the tension of the rope?
A 2590-kg van runs into the back of a 821-kg compact car at rest. They move off together at 8.5 m/s. Assuming the friction with the road is negligible, calculate the initial speed of the van
An R = 49.8 ? resistor is connected in series with a C = 12.1 ?F capacitor and a 105 Hz, 110 V source. Calculate the current in the circuit
Calculate the total time for car A to travel the 15.0 m and after the collision, car B moves to the right at a speed of 4.8 m/s. Calculate the velocity of car A after the collision.
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 74.1 dB. The waves reflected from the walls create, by themselves, an i..
question a 67.5 kg person sits on a 3.77 kg chair. each leg of the chair makes contact with the floor in a circle that
A steel column that has a diameter of 10 cm supports a mass of 1000 kg resting on it. What is the stress produced on the steel column
an airplane is flying at speed of 300 mihour and at a bearing of 40 degree at a constant altitude. the airplane meets a
A small plastic sphere charged to -10 nC in held 1.0 cm above small glass bead at rest on a table. find the maximum charge can the bead have without leaping up
a metal hump is placed on the surface of the infinitely large conducting plate as shown on the picture. the hump has a
In a Rutherford scattering experiment, an ?-particle (charge = +2e) heads directly toward a silver nucleus (charge = +47 e). The ?-particle had a kinetic energy of 4.7 MeV when very far (r ) from the nucleus. Assuming the silver nucleus to be fixed i..
In an experiment like you are going to do in Investigation 1 of lab this week, you count the number of beta rays from a 137Cs source. What is the average number of counts
A basketball star covers 2.85 m horizontally in a jump to dunk the ball, Determine his horizontal velocity at the instant of takeoff
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