Determine the value of h
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A: Given : L = 2.4 m d = 1 mm = 0.001 m r = d/2 = 0.001/2 = 0.0005 m F = 4 × 103 N Y = 20 × 1010 N/m2
Q: The following container is spun with an angular velocity of 12 rad/s after being 45% filled with…
A: Given, Angular velocity = 12 rad/s diameter is 250 mm Height is 200 mm and 45% of 200 mm is 90 mm
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- Between AB there is a 20 cm aluminum wire that supports a mass of 490 g and between BC another bronze cable of length 10 cm that supports a mass of 245 g; where EAL = 0.2x10¹¹ Pa (Young's modulus) and EBr = 5x10¹¹ Pa; with equal cross sections S = 0.2 cm² determine what length reaches point C. A - B - CA weed trimmer for yard work has a rotating head which consists of a spool of monofilament line, with a strand of line that extends out from the edge. The spool has an inner diameter of 3.00 cm and an outer diameter of 18.0 cm, and a mass of 100 g. The strand has a length of 16.0 cm. The monofilament line has a linear density of 10.0 g/m. 16.0 cm- Need Help? 3.00 cm (a) When switched on, the trimmer speeds up from 0 to 2.500 rev/min in 0.225 s. What average power (in W) is delivered to the head by the trimmer motor while it is accelerating? (Round your answer to at least one decimal place.) -18.0 cm- (b) When the trimmer is cutting weeds, it spins at 2,100 rev/min and the weeds exert an average tangential force of 9.15 N on the outer end of the line, which is still at a radial distance of 16.0 cm from the outer edge of the spool. What is the power (in W) delivered to the head under load? W ReadA nylon string on a tennis racket is under a tension of 215 N. Part A If its diameter is 1.05 mm, by how much is it lengthened from its untensioned length of 30.0 cm ? Use ENylon = 5.00 × 10⁹ N/m². ΔΙ = 浴 ΑΣΦ ?
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- The head of a grass string trimmer has 100 g of cord wound in a light, cylindrical spool with inside diameter 3.00 cm and outside diameter 18.0 cm as shown in the figure below. The cord has a linear density of 10.0 g/m. A single strand of the cord extends 16.0 cm from the outer edge of the spool. 16.0 cm -3.00 cm -18.0 cm- (a) When switched on, the trimmer speeds up from 0 to 2 250 rev/min in 0.230 s. What average power is delivered to the head by the trimmer motor while it is accelerating? Your response differs from the correct answer by more than 10%. Double check your calculations. WA uniform disk of mass 10.0 kg and radius of 0.248 m spins at 302 rev/min on a low-friction axle. It must be brought to a stop in 1.00 min by a brake pad that makes contact with the disk at an average distance of 0.218 m from the axis. The coefficient of friction between the pad and the disk is 0.499. A piston in a cylinder of diameter 5.00 cm presses the brake pad against the disk. Find the pressure required for the brake fluid in the cylinder. Pa Need Help? Read ItWater is ejected from the water nozzle with a speed vo = 41.7 ft/sec. For what value of the angle will the water land closest to the wall after clearing the top? Neglect the effects of wall thickness and air resistance. What distance x to the right of point B does the water land? Answer: 0 = A X= 10 8 13.3' i i 45' Not to scale ft 6.9' B