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Assume that the force exerted on the head of the nail being plucked out by the hammer is vertical, and neglect the hammer's weight.
a. Draw the free-body diagram of the hammer.
b. If F =10 N, what are the magnitudes of the forces exerted on the nail by the hammer and the reaction forces exerted on the floor by the hammer?
What would be the formula for converting degrees Fahrenheit to degrees Celsius? what temperature would be the equal number of degrees in both Fahrenheit and Celsius scales?
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
For an assembly line, you need to design a linkage that moves a point P in approximately a straight line over a distance of 24” in one second. It is also specified that P must return from the endpoint back to the starting point in five seconds, givin..
determine the torque that can be applied to a solid shaft of 20-mm diameter without exceeding an allowable shearing
A 1m3 rocket propellant chamber is filled with combustion gases at 3000 K and 7 Mpa at the instant combustion ceases. The throat area of the nozzle is 0.1m2. Estimate the time it takes for the chamber pressure to drop to 0.7 MPa. Assume that the inst..
Plot the overall cable configuration - What are the coordinates of the junction point B?
a measure of the stiffness of a linear actuator system is the amount of force required to cause a certain linear
a uniform stream of speed v is inclined at angle alpha from the x-axis. the flow is steadu state and two dimensional
A double pipe heat exchanger uses water at 15 °C to cool 100 °C fluid (Cp = 2.63kj / kg °K) the water and fluid rates are each 0.5 kg / s . What is the maximum possible heat transfer rate? What effectiveness of the heat exchanger?
A particular thermal system involves three objects of fixed shape with conduction resistances of R1 = 1 K/W, R2 = 2 K/W and R3 = 4 K/W, respectively. An objec- tive is to minimize the total thermal resistance Rtot asso- ciated with a combination of R..
the 1.25 in diameter steel shaft bc is built into the rigid wall at c and supported by a smooth bearing at b. the lever
a car is traveling in a horizontal plane along a curved banked road at a constant speed v. determine the range of
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