How many people can safely occupy an elevator
A metric ton is 1.000 × 103 kg. How many (whole number of) 80 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton?
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A 3.13 kg block is placed on top of a 8.68 kg block. A horizontal force of F = 67.8 N is applied to the 8.68 kg block, and the 3.13 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.0943. There is f
How many (whole number of) 80 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton?
A car is driven east for a distance of 47 km, then north for 27 km, and then in a direction 29° east of north for 29 km. Determine (a) the magnitude (in km) of the car's total displacement from its starting point and (b) the angle (from east)
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A bat at rest sends out ultrasonic sound waves at 59.0 kHz and receives them returned from an object moving directly away from it at 25.0 m/s. What is the received sound frequency?
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