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A horizontal water main with a cross-sectional area of 196 cm2 necks down to a pipe of area 40.4 cm2. Meters mounted in the flow on each side of the transition coupling show a change in gauge pressure of 98.0 kPa. Determine the flow rate through the system, taking the fluid to be ideal.
A 0.042 kg aluminum bullet traveling at 456 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
Two parallel conductive plates of area 0.3m2 hold equal-but-opposite charges of magnitude 30?C on either side. calculate the electric field between the plates
A 500.0 g pot of water at room temperature (20.0C) is placed on a stove. How much heat is required to change this water to steam at 100C
A 1200 kg car pushes a 2200 kg truck that has a dead battery . When the driver stes on he accelerator, What is the magnitude of the force of the car on the truck
A rope is used to pull a block a horizontal distance of 50 metres. If the rope tension is 120 N, What is the work done on the box
A NASA satellite has just observed an asteroid that is on a collision course with the Earth. With what speed will it hit the Earth's surface
An initially uncharged 4.53x10-6 F capacitor and a 7250 ohm resistor are connected in series, Calculate the circuit's time constant
What is the velocity of each ball. while both pipes vibrate at their fundamental frequencies, a beat frequency of 15 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 343 m/s.
A machine pulls a 40 trunk a distance of 2 m along a 40 degree incline at constant speed. what is the work done on the truck by the machines force
A car is traveling away from you at 40.0 mi/h. The car horn produces a sound at a frequency of 480 Hz. What frequency do you hear
If f8 and 1/125 s gives the proper exposure, what f-stop number should be used with 1/500 s under the same light conditions
q1. in a head-on collision a car stops in 0.24 from a speed of 25. the driver has a mass of 74 and is fortunately
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