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The motor M pulls on the cable with a force of F, which has a magnitude that varies on the graph. If the 20-kg crate is originally resting on the floor such that the cable tension is zero at the instant the motor is turned on, determine the speed of the crate when t=6s. Hint : First determine the time needed to begin lifting the crate.
At what depth will water flow in a 10 m wide rectangular channel, if n=0.01, S=0.0015 and Q=9m^3/s
Two capillary tubes have radii of 1 mm and 0.5 mm respectively. They are placed in a liquid whose density is 0.80 g/cc and which completely wets the walls of the tube, i.e. theta = 0. The difference in height of capillary rise is 0.74 cm.
For satisfactory operation, the static pressure at the pump inlet must not be lower than -6 m of water gage. Determine the smallest standard commercial pipe that will give the required performance.
The search light is rotating at a constant rate of 4 rad per second. Find the magnitude of the velocity and acceleration of the spot of light on the wall when the search light beam makes a 45 degree angle with the wall.
Annual rainfall over the watershed is 36 inches and the annual runoff from the catchment is 12 inches. Evaporation from the reservoir averages 40 inches per year. The municipal water demand equals 100 million gallons per day
What are the basic assumptions of the 'traffic flow model' and 'capacity model' used in signal timing design. Discuss.
A cattle watering has a free surface with a size equal to 0.6 m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s.
The rapid sand filter being designed for Laramie has the characteristics show below. Determine the head loss for the clean filter bed in a stratified condition. Depth = 0.75 m
The gasoline at point C and time t has an acceleration given by a=(-12i+40k) ft/s^2 where i and k are the horizontal and vertical unit vectors. Find the rate of increase of the piezometric head and the pressure in the x,y,z and a directions.
Consider the components that are required for an automobile. List 5 components and identify the class of material that is used for each component. What are the critical properties that allow for the function of the material in that application
Compare the three-decimal-place values of the two approximations at x=(1/2) with the value y(1/2) of the actual solution . then do the same for PART B: y'=-2xy , y(0)=2 ; y(x)=2e^(-x^2)
The scale of a spring balance reading from 0 to 235 N has a length of 13.0 cm. A fish hanging from the bottom of the spring oscillates....
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