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A 120g cue ball moving at 0.35m/s strikes a stationary target ball with the same mass. After the collision, the cue ball moves at 0.18m/s at 60 degrees from its original line of motion.
PART A: Find the system's center-of-mass velocity before the collision.
PART B: Find the system's center-of-mass velocity after the collision.
A space probe is traveling in outer space with a momentum that has a magnitude of 7.80 107 kg · m/s. Determine the momentum of the probe after the retrorocket ceases to fire
A chocolate bar (40grams) has 210 Calories. Approximately how long would the 100 watt light bulb shine if we convert all the chocolate's energy into electricity (100% efficiently)? (Remember 1Cal = 1000 cal = 4200 joules)
An X-ray tube gives electrons, which start at rest, a constant acceleration over a distance of 23cm. If their final speed is 1.3 x 107 m/s, what are the time they spend accelerating
A sophomore with nothing better to do adds heat to 0.350 kg of ice at 0.00°C until it is all melted. What is the change in entropy of the water
A copper wire has a resistance of 0.400 at 20.0°C, and an iron wire has a resistance of 0.430 at the same temperature
Two loudspeakers emit 500Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed
A high-voltage transmission line carries 500 A at 700 kV for a distance of 100 miles. what is the power loss due to resistive losses
An optical system is designed so that an object for a convex spherical mirror of focal length f=15 cm is 20 cm behind the mirror, determine whether the image is real or vertual, erect or inverted
A 70 kg man (rad=0.25m) standing on a 10-kg disc (rad=0.4m) with his arms extended (rad=0.9m) holding a 15-kg weight in each hand. What is the rotational inertia of man with weights.
What is the flow speed of the medicine through the needle. What is the least force the nurse needs to apply to the syringe.
Two charges are fixed on the x axis: one with a charge of = 5.00 at = -1.00 and the other with a charge of = 3.00 at = 1.50 . Find the force exerted on a charge = -5.00 placed at the origin (x=0). What are the magnitudes of the three charges q, q1..
A tuning fork with a frequency of 356 Hz is found to cause resonance in a closed column of air at 41 cm and at 65 cm. Find the velocity of sound produced by the tuning fork.
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