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Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.2 × 10-4m2 and the speed of the water is 0.90 m/s as it leaves the faucet. Ignoring air resistance, find the cross-sectional area of the water stream at a point 0.11 m below the faucet.
What must the charge (sign and magnitude) of a particle of mass 1.44g be for it to remain stationary when placed in a downward directed electric field of magnitude 660 N/C.
A projectile is fired at v0 = 407.0 m/s at an angle of ? = 72.0o with respect to the horizontal. Assume that air friction will shorten the range by 34.1%. How far will the projectile travel in the horizontal direction, R?
The output voltage of an AC generator is given by ?v = (160 V) sin (50?t). The generator is connected across a 19.0-? resistor, By inspection, what is the maximum voltage
An emf of 22.0 mV is induced in a 497 turn coil when the current is changing at a rate of 9.0 A/s. What is the magnetic flux through each turn of the coil
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m, How fast will the payload be traveling when it reaches the bottom of the shaft
Assume that the balloon rises slowly so that the temperature inside is the same as outside. Illustrate what will happen if the balloon is made up of rigid material?
A 7450kg iceberg with density 931 kg/m3 is afloat in seawater with density 1030 kg/m3. Find the volume of water displaced by the iceberg
Physics: Mechanics about two curling stones - calculate speed, resistive force Two curling stones A and B, each having a mass of 2 kg, are on an ice rink floor. A is stationary and 10 meters from a boundary wall, while B is sliding at right angles..
A "rocket car" is launched along a long straight track at t = 0 s. It moves with constant acceleration a1 = 1.2m/s2. At what time does the second car catch up with the first one
The cable lifting an elevator is wrapped around a 1.0-m-diameter cylinder that is turned by the elevator's motor. How long does it take for the elevator to stop
A cell membrane has a surface area of 1.0 x 10^-7 m^2, a dielectric constant of 5.6 and a thickness of 8.5 nm. How much energy is stored in this capacitor
A parachutist descending at a speed of 13.4 m/s loses a shoe at an altitude of 54.2 m. Illustrate what is the velocity of the shoe just before it hits the ground? The acceleration of gravity is 9.81 m/s2.
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