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The 50-kg block is hoisted up the incline using the cable and motor arrangement shown. The coefficient of kinetic friction between the block and the surface is mk = 0.4. If the block is initially moving up the plane at v0 = 2 m>s, and at this instant (t = 0) the motor develops a tension in the cord of T = (300 + 120 1t) N, where t is in seconds, determine the velocity of the block when t = 2 s.
a hockey player strikes the 0.25 kg puck with an impulse force given by ft 100sin50t n for the duration of 0.04pi
some of our modern kitcgen cookware is made of ceramic materials. a compare the relative properties and cost of three
Calculate the velocity of a satellite in orbit around the earth in a geosynchronous orbit. Use the definition of a sidereal day which is 86164.09 sec. What is the orbit height in km?
The average high and low temperatures in Dayton OH in September are about 77Fand 56F, respectively. What is the high temperature reported in (a) K, (b) C, and (c) R? What is the dismal temperature difference (delta T=21 F) when reported in (d) K, (e)..
a shell and tube heat exchanger consists of a tubecarrying a fluid to be heated or cooled surrounded by another fluid
a 14 mm diameter 50 mm long mild steel rod undergoes a stress test. a tensile force of 18800 n is applied and the rod
a 10-kg block is attached to spring a and connected to spring b bycord and pulley. the block is held in the position
a vehicle is moving along a straight line with an acceleration given by ms2 where s is in m. at s 0 t 0 and v 6 ms.
Write an expression for the signal, Sc, in terms of R, the coating blackbody emissive power, the blackbody emissive power of the surroundings, the coating emissivity, and the appropriate band emission fractions
a liquid food product is processed in a continuous flow sterilizer. the liquid enters the sterilizer at a temperature
Determine the power of the pump. The efficiency of the pump is 65%.
a cam rotating at a constant speed of 100 rpm drives a roller follower such taht it has a displacement given byy 10
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