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An green hoop with mass mh = 2.8 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.4 kg and radius Rd = 0.11 m. The other end of the string is attached to a massless axel through the center of an orange sphere on a flat horizontal surface that rolls without slipping and has mass ms = 4 kg and radius Rs = 0.19 m. The system is released from rest.
1) What is magnitude of the linear acceleration of the hoop?
A ski lift carries 900 skiers per hour up a slope with a constant incline of 15 degrees and a vertical drop, How much power is required to run the lift
A long solenoid has n turns per unit length and a radius R. If the current in the solenoid varies as I(t) = I(0)sin(wt), what is the induced electric field as a function of r both inside and outside the solenoid
A blue puck with a mass of 4.30×10?2kg , sliding with a speed of 0.190m/s on a frictionless, horizontal air table, Find the direction of the velocity of the red puck after the collision
A 3.2-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. What is the elastic potential energy of the system when the 3.2-kg block is replaced by a 4.1-kg block
If a car of mass 1000 kg is moving along a highway at 92 km/h, what is car's kinetic energy as determined by someone standing alongside the highway.
A 0.810 kg particle has a speed of 2.60 m/s at point A and kinetic energy of 8.80 J at B. What is its speed at B? reply in units of m/s.
q1. collapsible plastic bags are used in hospitals for infusions. we want to use such a bag to infuse an electrolyte
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
A physicist uses a cylindrical metal can 0.210m high and 0.075m in diameter to store liquid helium at 4.22 K; How much helium is lost per hour? The emissivity of the metal can is 0.200
A 200g ball on a 70-cm-long string is swung in a vertical circle about a point 200 cm above the floor. What was the tension in the string an instant before it broke
When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 6.00 cm long, What is the impulse imparted to the hammer
A current of 18.0 mA is maintained in a single circular loop of 3.70 m circumference. Calculate the magnetic moment of the loop.
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