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Air is exiting a 100-cm-diameter balloon out a 1-cm-diameter nozzle. If the pressure and temperature at the exit are 110 kPa and 22-C, respectively, and the exit velocity is 30 m=s, calculate the flow rate, the mass flux, and the rate at which the diameter is changing.
The brick wall of a building has dimensions of by and is thick. How much heat ?ows through the wall a period when the average inside and outside temperatures are, in that order.
train engine has a mass of 2.1 x 107 and is moving acrossed a bridge at 23.9 miles per hour what is the kinetic
What is an initial speed given to the rock
Given a series circuit of a 24 volt DC power supply, a switch, a 47 kΩ resistor, and two 100 μF capacitors in parallel, how long after the switch is closed, will the voltage across the capacitors be 14.5 Volts?
truck traveling north a 2900 kg truck traveling north at 34 kmh turns east and accelerates to 44 kmh.a what is the
The initial speed of a 2.8-kg box traveling up a plane inclined 37 degree to the horizontal is 3.96 m/s. The coefficient of kinetic friction among the box and the plane is 0.30. How far along the incline does the box travel before coming to a stop?
Two slits are separated by 0.270 millimeter. A beam of 570 nm light strikes the slits, producing an interference pattern. Find the number of maxima observed in the angular range
A sailboat is traveling east at 5.0 m/s . A sudden gust of wind gives the boat an acceleration a = (0.80 m/s^2 , 40 degrees north of east). A)What is the boat's speed 4.5s later when the gust subsides? B)What is the boat's direction 4.5s later whe..
a toy airplane moves at the end of a string about a fixed point in a horizontal circle of 1.02-m radius. if the linear
A 1.5 kg kitten jumps down from a 2.0 meter high fence. What will be the kitten's speed when it reaches the ground
A hydrulic jack in a mechanic's shop supports a car of mass M= 2.1 x 10^3 kg. What force must the pump exert on the fluid at the input to support the weight of the car
Kim says that she was less than 10 ft away from the president when she took a picture of him with her 45-mm focal length camera lens. How close was Kim to the president when she took the picture
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