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Water flows straight down from an open faucet. The cross-sectional area of the faucet is 1.60 10-4 m2, and the speed of the water is 0.89 m/s as it leaves the faucet. Neglecting air resistance, obtain the cross sectional area of the water stream at a point 0.11 meter below the faucet.
A car is traveling at 25 m/s when it runs off the road and hits a utility pole. What is the acceleration of the airbag
Consider the equation for heat transfer through a wall. Based on this, describe two simple ways you could modify your home to decrease the rate at which heat is lost through your walls.
The average distance from the earth to the sun is called the astronomical unit (AU). does it obey Kepler's third law
A 2500 kg car rounds a flat curve of radius 75 m at speed of 80 km/h. if the pavement is icy and the force of static friction is 6000 n, what is the maximum speed the car could safely go around the curve
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
An ac generator with a frequency of 29.4 Hz and an rms voltage of 12.0 V is connected to a 49.5-µF capacitor. What is the maximum current in this circuit?
Mercury is about 13.6 times the density of the human body. Assume that a person (Weight = 150lb {one could only wish}) were totally immersed in the mercury; what would be the buoyant force experienced by that person?
Assuming that air resistance is simply a constant 91 N force on the person during the fall, identify the person’s velocity just be- fore hitting the net.
A block with a mass of 7.32kg is on an incline plane that makes an angle 37.5o with respect to the horizon. what is the coefficient of kinetic friction
a solid aluminum ingot weighs 71.0 n in air. a. what is its volume? b. the ingot is suspended from a rope and totally
A uniform flat rectangular sheet of mass m and side lengths a and b rotates with angular speed ? around a diagonal, What is the upper bound on the torque
Displacement d1 is in the yz plane 58.4° from the positive direction of the y axis, has a positive z component of 5.99 m, find the angle between d1 and d2
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