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A concept team for a toy company is considering a new squirt gun. They have an idea for one that could shoot a vertical stream to a height 7 m from a 5-mm-diameter nozzle. People like squirt guns that shoot for a long time, but also do not like water tanks that are too big or heavy. lf the tank of this squirt gun can hold 3 L, how long can the squirt gun shoot?
Plot the engineering stress-strain curve. Determine i. Young's modulus, ii. the 0.2% offset yield strength, iii. the tensile strength, iv. the percent elongation, and v. the percent reduction of area.
Diffusion of carbon into BCC iron for 12 hours at a temperature of 5000C results in a carbon concentration of 0.2 wt% at a depth 2 mm from the surface. At what depth would the concentration be 0.2 wt%, if the diffusion occurred for 6 hours at 8000C?
Compute the percent change n in the normal forces at A and B as compared with their "engine-off" values.
suppose you needed to reduce the diameter of a rod 20 and could choose between drawing it or extruding it through the
At steady state, a heat pump provides energy by heat transfer at the rate of 25,000 Btu/h to maintain a dwelling at 708F on a day when the outside temperature is 308F. The power input to the heat pump is 4.5 hp. Determine
The tennis coach needs a better tennis ball serve for practice. This device must fire a sequence of standard tennis balls ball from one side of a standard tennis court over the net such that they land and bounce within each of three court ..
Determine the stress in a stay at a given temperature. A steel 'stay' of effective length 5m is fitted in between the walls of a ships refrigerated compartment when the temperature is 18 degrees centigrade.
To a good approximation, the dynamic viscosity µ,, the top surface for g = 1 mm, D= 150 rad/s? What is the total electric power requirement? What can you say thermal conductivity k, and the specific heat cp are inde about the nature of the flow..
Calculate the fraction of atom sites that are vacant for copper (Cu) at a temperature of 729°C (1002 K). Assume energy for vacancy formation of 0.90 eV/atom. Repeat this calculation at room temperature (298 K).
Calculate the allowable load P using a factor of safety n = 2.4, taking into account the possibility of Euler buckling about either principal centroidal axis (i.e., axis 1-1 or axis 2-2).
1 a barrel is rolled up an incline 20 ft along its length and 6 ft in vertical height by means of a rope that is
a 10.00-meter-long pipe closed at one end was inverted and submerged vertically in a minnesota lake until the closed
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