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A 224-? and a 211-? resistor are connected in series across an unspecified power supply. If the current through the 224-? resistor is 0.49 A, what is the exact current (in A) through the 211-? resistor?
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Questio: A pump is required to lift a mass of 850 kg of water per minute from a well of depth 13.8 m and eject it with a speed of 17.2 m/s. part A. How much work is done per minute in lifting the water? part B. How much ...
Swimming at 1.50 m/s relative to still water, a swimmer heads directly across a river of width 80 m. He arrives 45.0 m downstream from the point directly across the river from his starting point. (a) What is the speed o ...
Question: A small 100 g cart is moving at 1.20 m/s on a friction less track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.850 m/s. What is the speed of the large c ...
Question: For a patient, a doctor prescribes glasses with a converging lens having a power of 4.0 D. Is the patient nearsighted or farsighted? The response must be typed, single spaced, must be in times new roman font (s ...
Question: The radius of the earth's orbit around the sun (assumed to be circular) is 1.5*10^8 km , and the earth travels around this orbit in 365 days. a) What is the magnitude of the orbital velocity of the earth in m/s ...
Question: A student is working in an optics lab and has a light bulb which is 90 cm from a screen. She needs to make a real image of the bulb on the screen and she has a positive lens with a focal length of 12.5 cm. Find ...
A particle starts from the origin at t = 0 with an initial velocity having an x component of 26.6 m/s and a y component of -14.8 m/s. The particle moves in the xy plane with an x component of acceleration only, given by ...
Question: A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4 m/s), (a) how far in advance of the recipie ...
Question: A rocket starts from rest and moves upward from the surface of the earth. For the first 10s of its motion, the vertical acceleration of the rocket is given by ay=(3.00m/s3)t, where the +y-direction is upward. W ...
Question: A satellite orbiting the moon very near the surface has a period of 110 min. What is the moon's acceleration due to gravity? The response must be typed, single spaced, must be in times new roman font (size 12) ...
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