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Your car's fuel efficiency is e = 26 miles per gallon. The fuel pump pulls fuel from the tank at the same speed vat which the car itself moves (so if the car is moving 1 mile per hour, the fuel moves through the pump at 1 miles per hour). The fuel pump pulls fuel at speed v through a hose with cross-sectional area A.
What is the cross-sectional area of the hose in square inches? What is it in square millimeters? (1 gallon =231 in3. You need to find the volume of fuel pumped per time in terms of v and A Fuel efficiency is distance traveled per fuel pumped, which is equal to speed v divided by fuel pumped per time. The time dependence cancels out. Fuel efficiency has units distance per volume.)
The order in which vectors are added does not matter. Mathematicians say that vector addition is commutative. Which ordinary arithmetic operations are commutative? Which are not?
you are outside tossing a football with your friends. you throw the football at an angle of 52.3deg above the
A block is weighing 100 Newton is pushed on a horizontal table at constant velocity by a 25 Newton force, Find coefficient of kinetic friction between book and table
A particle with an initial linear momentum of 4.80 kgm/s directed along the positive x-axiscollides with a second particle, which has an initial linearmomentum of 9.60 kg · m/s, directedalong the positive y-axis.
two blocks are connected by a string over a disk-shaped pulley with mass M8.5 kg and outermost readuis R = 0.10m. Calculate the acceleration of the hanging block
Two identical boxcars (m = 15730 kg) are traveling along the same track but in opposite directions. what will be the final speed of the pair
The upper end of the string wrapped around the cylinder below is held by a hand that is accelerated upward so that the center of mass of the cylinder does not move as the cylinder spins up. (c) Find the acceleration of the hand.
Cliff and Will support the board at each end so that it is horizontal. A 64 kg boulder is placed on a 2.00 m long board at a point that is x = 1.7 m from Cliff. What force does Will apply to the board
Tension is maintained in a string. The observed wave speed is24 m/s. When the suspended mass is 3.0 kg, What is the mass per unit length of the spring
Two waves of the equal frequency have amplitudes 2.13 and 1.36. They interfere at a point where their phase difference is 58.5 degree. Determine what is the resultant amplitude
the henrys law constant kh for carbon monoxide co in water at 25oc is 9.71x10-4 moll.atm . how many grams of co will
A see-saw board is supported at its center by a fulcrum A 25 kg person sits 80 cm from center. How much force does the fulcrum exert on board
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