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A Carnot engine receives 250 kJ s-1 of heat from a heat-source reservoir at 525?C and rejects heat to a heat-sink reservoir at 50?C. What are the power developed and the heat rejected?
A wire is formed into a circle having a diameter of 10.3 cm and is placed in a uniform magnetic field of 3.25 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.
The steel I-beam in the drawing has a weight of 8.39 × 103 N, What is the tension in each cable attached to its ends
An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s from a height of 1.55 m above the ground. Will the rock reach the top of the wall
question1a 52 kg mountain climber starting from rest climbs a vertical space of 730 m. at the top she is again at rest.
Suppose in the double-slit arrangement, d = 0.150mm, L =120cm, %u03BB =833nm, What is the path difference %u03B4 for the rays from the two slits arriving at point P
The fast train known as the TGV Atlantique (Train Grande Vitesse) that runs south from Paris to Le Mans in France has a top speed of 310 km/h. If there is a curve with a 1.00 km radius, to what speed must the train be slowed
A 210 g, 49 bcm diameter turntable rotates on frictionless bearings at 54 rpm . A 25 g block sits at the center of the turntable. A compressed spring shoots block radically outward along a frictionless groove in the surface of the turntable.
For exercise, a 60 kg athlete runs up a 10-m high hill in 30 seconds. Assume the efficiency of the human body is 25%. Determine her metabolic power
A 72.3-kg man is at rest on ice skates. A 0.178-kg ball is thrown to him. How fast is the man moving just after he catches the ball
A Carnot engine operating between a warmer unknown temperature and a reservoir of boiling helium at 1.76 K has an efficiency of 59% What is the warmer temperature
An alpha particle (a He nucleus, containing two protons and two neutrons and having a mass of 6.48×10^-27 kg) traveling horizontally at 36.4 km/s enters a uniform, What is the diameter of the path followed by this alpha particle
The Atwood machine in the figure consists of masses m1 = 1.20 kg and m2 = 1.10 kg and a solid pulley with a diameter of 5.9 cm, what is the speed of the heavier mass after it has fallen a distance of 1.65 m
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