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Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 490 and 270 K, respectively. How much heat is converted into work?
A 1500kg weather rocket accelerates upward at 10m/s2. It explodes 1.9s after liftoff and breaks into two fragments, What was the speed of the heavier fragment just after the explosion
A horizontal string of length 1.5 meters vibrates with a wave velocity of 1230 m/s at its fundamental frequency.
A soccer ball, which has a circumference of 70.0 , rolls 11.0 in 3.30. What was the average angular speed of the ball during this time
Find out parametric equations for the shell's trajectory relative to the coordinate system. What is the maximum distance at which these headlights could be resolved as separate points of light on a photograph taken with a camera whose aperture has a ..
A 85.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.800 s by a head-on tackle by a tackler running due west. Calculate the impulse exerted on the tackler
q1. how much resistance must be inserted in mua circuit has l 12.6 mh and c 1.15the circuit to reduce the undamped
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, Find the total energy (potential and kinetic) of Mercury in its orbit about the Sun
What must the charge (sign and magnitude) of a 1.49-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 660N/C?
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
Find the maximun angle of a slope on which a parked car would not be able to slide down. use the static coefficient of rubber on concrete(1.0)
Responding to an alarm, an 88.4 kg fireman slides down a pole to the ground floor, 4.60 m below. What is the magnitude of the force exerted by the pole on the fireman
A cylindrical buoy of diameter 35 cm floats upright in the water and is submerged to a depth of 1.85 m. What volume of water does the buoy displace
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