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In an atwood's machine, one block has a mass of .6kg and the other a mass of .56 kg. The pulley, which is mounted on frictionless bearing, has a radius of .07m. When released from rest, the heavier block is observed to accelerate downward so that it falls .75m in 5.0s. What is the rotational inertia of the pulley? What is the magnitude of the net torque on the pulley? What is the direction of the net torque on the pulley?
Suppose two kids get on a 4 meter long teeter-totter. The one on the right creates a CW torque of 350 Newton-meters (Nm). Quite by coincidence, when the other kid sits at 1 meter from his end they balance perfectly. How much does second kid weigh.
You are driving to the grocery store at 20. You are 100 from an intersection when the traffic light turns red. Suppose that your reaction time is 0.70 and that your car brakes with constant acceleration. What acceleration would bring you to rest r..
Originally, light is unpolarized. It then travels through 3 polarizers: the first with its transmission axis aligned vertical, What is the intensity of light after the third polarizer
A rectangular loop of wire has dimensions 0.5m by 0.3m. The loop is pivoted at x axis and lies in the xy plane. A uniform magnetic field of magnitude 1.5 T is directed at an angle of 40° with respect to the y axis with field lines parallel to the ..
Suppose a particle with mass m release from rest in a uniform gravity g. Suppose the drag force is proportional to speed square, find an expression that gives the relationship between velocity and time
A series RCL circuit driven at angular frequency w = 780 rad/s has a capacitive reactance XC = 920 ohms, What is the average power consumption of the circuit
Suppose a tank contains 770 m3 of neon (Ne) at an absolute pressure of 1.01×105 Pa. The temperature is changed from 293.2 to 295.6 K. What is the increase in the internal energy of the neon?
A 374-kg sailboat has an acceleration of 0.643 m/s2 at an angle of 58.9 ° north of east. find the direction of the net force that acts on the sailboat
A 6V battery is connected in series with a 1.5V flashlight. what possible terminal voltages are available
The distance from the Sun to Jupiter is 5.2 times longer than the Earth-Sun distance. Take the intensity of sunlight at the Earth to be 1383 W/m2. Find the intensity of sunlight at Jupiter
Ball 1, with a mass of 140g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 310g, What are the final velocities of each ball if the collision is perfectly inelastic
A ship sets out to sail to a point 212 km due north. An unexpected storm blows the ship to a point 156km due east of its starting point. How far must it now sail to reach its original destination.
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