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On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is of its value on earth. Suppose he hit the ball with a speed of 23 m/s at an angle 28 degrees above the horizontal.
1.How far did it travel?
2.Ignoring air resistance, how much farther would it travel on the moon then on earth?
assume the cost of a robotic system is 151. the salary and other costs of workers replaced is 27 the saving for using
a barometer is used to measure atmospheric pressure contains mercury with a density of 13590 kgm3. if the local
Determine the maximum horizontal displacement s of the block. Each of the two springs has a stiffness of k = 2500N/m and an unstretched length of 0.15 m.
an amusement park at the bottom of niagara falls wants to install a water turbine to produce 100 kw power. water assume
Air at 90 kpa and -7 C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves with a low velocity at a pressure of 100 kpa. The exit area of the diffuser is 5 times the inlet area. Determine (a) the exit temperature and (b) th..
At a section in a passage, the pressure is 150 kPa (abs), the temperature is 10 deg C, and the speed is 120 m/s. For isentropic flow of air, determine the Mach number at the point where the pressure is 50 kPa (abs). Sketch the passage shape.
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
Refrigerant 134a enters a heat exchanger in a steady state refrigeration system as saturated vapor at 0 °F and exits at 20 °F with no change in pressure.
Air enters a turbine at 40 kN/m2, 900 C, and leaves at 10 kN/m2. The flow is reversible and adiabatic. Inlet velocity is quite low and outlet velocity is 150 m/s through a cross-sectional area of 0.20 m2. Calculate the power output in kW.
water steam at 3mpa and 400oc is expanded to 100kpa in an adiabatic turbine with an isentropic efficiency of 92.
strength of materials energy methodsa steel ring of mean diameter 250 mm has a square section 2.5 mm by 2.5 mm. it is
The lamp has a mass of 15 kg and is supported by a pole AO and cables AB and AC. If the force in the pole acts along its axis, determine the forces in AO, AB, and AC for equilibrium.
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