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A particle P moves along the x-axis with its acceleration a at time t given by
a = 6t - 4ms-2.
Initially P is at the point x = 20 m and is moving with speed 15 m s-1 in the negative xdirection. Find the velocity and displacement of P at time t. Find when P comes to rest and its displacement at this time.
A football official inflates a football to the required gauge pressure of 13 psi prior to a game. The football has an internal volume of 160in^3 and the air is at a temperature of 75 degrees F when the football is first inflated.
consider a system operating a power cycle between thermal reservoirs at temperatures th and tc where thgttc. using 1st
A steel circular bar (\sigmayp =250 MPa) of d=60-mm diameter is acted upon by combined moments M and axial compressive loads P at its ends. Taking M=1.5KN.m, determine, based on the maximum energy of distortion theory of failure, the largest allowabl..
a police car is traveling at a velocity of 15.0 ms due north when a car zooms by at a constant velocity of 37.0 ms due
The two should be equal. Explain why this is so. Can you relate the viscous drag force and the wall shear stress to this energy result?
The outside wall surface of a 25 mm diameter metal tube (k=42 W/m*K) is maintained at 120 C. The tube is located in a room at 25 C and the convective heat transfer coefficient is 34 W/m^2*K. We'd like to increase heat transfer from the tube by adding..
if the 1500-lb boom ab the 200-lb cage bcd and the 175-lb man have centers of gravity located at points g1 g2 and g3
What is the tension needed to pull a rubber by a distannce z= 10nm at 25 c? Number of individual chains in the rubber, N=1000, bond vector length b=2 Angstrom.Please give your answer in pico Newton - pN
The gage pressure in an automobile tire when measured during winter at 32 o F was 32 psig. The same tire was used during the summer when the temperature rose to 112 o F. If we assume that the volume of the tire did not change, and no air leaked out b..
assume you are given a spherical joint where the ball has a radius of 20 mm and socket has a radius of 22 mm. if the
What is the probability that the strength is less than or equal to 5,000 psi. What is the probability that the strength is greater than 2,500 psi
for each case determine the specified property value and locate the state by hand on sketches of the p-v and t-v
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