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Water flows at speed of 5 m/s through a horizontal pipe of diameter 3.4 cm. The gauge pressure P1 of the water in the pipe is 1.5 atm. A short segment of the pipe is constricted to a smaller diameter of 2.3 cm. What is the gauge pressure of the water flowing through the constricted segment? Atmospheric pressure is 1.013 × 105 Pa . The density of water is 1000 kg/m3 . The viscosity of water is negligible. Answer in units of atm.
As part of a safety investigation, two 1400 cars travelling at 18 are crashed into different barriers. Find out the average forces exerted on (a) car that hits a line of water barrels and takes 1.8 to stop, and (b) car that hits a concrete barrier an..
Bob walks up to the crate and begins pushing with 200N of force. What is the magnitude of the frictional force now
make sure to label the graphs with units and values to indicate any critical points of the ball's motion.
question1assume that you required making a pen for some small animals. you have 12 of fencing. you decide to make a
Derive an equation for T as a function of k and m. If you plot a graph of T^2 versus m, what combination of variables represents the slope
When 3880 J of heat are added to a 0.159-m-long silver bar, its length increases by 4.31 x 10-3 m. What is the mass of the bar
At a distance of several kilometers from a radio transmitter, the electric field of the emitted radio wave has a magnitude of 0.12 V/m at one instant of time
A stationary detector sends out a sound wave of frequency0.305 MHZ toward an approaching car. The speed of the car is 40m/s. What is the frequency of the waves reflected back to the detector
As you stand motionless on the sidewalk, you hear an ambulance siren broadcasting a shrill 610hz sound while it is approaching, What speed is the ambulance
q1. tony of mass 55 kg coasts on his bicycle of mass 20 kg at a constant speed of 4 ms carrying a 12 kg pack. tony
A car is traveling at a constant speed of 38.8m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has constant acceleration. What acceleration must it..
A 2.50-kg block slides on a horizontal surface with coefficient of kinetic friction 0.310. It is moving at 5.45 m/s, Find the distance of compression
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