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A 1500 kg car is traveling up on a road with a slope of 15% (i.e. rise of 15 on a run of 100) at a constant speed. Knowing that the maximum power output of the car is 160 hp, at what speed can the car travel if air resistance is negligible? Also, knowing that 1 L (i.e. one liter) of regular gas provides 34.8 MJ of energy, how many liters of gasoline will be required in one hour if the speed has an efficiency of 20%?
a rocket motor is used to accelerate a kinetic energy weapon to a speed of 3500 mph in horizontal flight. the exit
a spherical communication satellite with a diameter of 2.5m is orbiting around the earth. the outer surface of the
A small steel ball bearing with a mass of 13 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.35 m. Calculate the speed at which the ball leaves the spring.
the concrete beam is reinforced with three 20-mm diameter steel rods. assume that the concrete cannot support tensile
a clock is slow such that it falls behind 15.2 min in every hour. calculate the angular velocity of its second hand the
Determine the angle between his velocity vector and the line from his position to the airlock's position.
a 1000 mw power plant 0.375 efficiency uses a central appalachian coal 6.5 wt ash content. estimate the annual amount
Applied Loads, Young's modulus, Poisson's ratio, The Young's modulus and the Poisson's ratio for copper are 124.8 GPa and 0.36 respectively. When a tensile load is applie to a 1.5cm diameter copper rod
a long aluminum bar has a diameter of 11 cm and is initially uniform in temperature at 300 c. if it suddenly exposed to
A beam of span 600mm has a load of 1 kg and deflects by 0.55mm its width is 25.4mm and depth is 6.7mm what is the elastic modulus of the material?
a car and its suspension system are idealized as a damped spring-mass system with natural frequency 0.5hz and damping
Design a bridge that will withstand 4 fully loaded semi-trailers
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