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Use Bernoulli's Equation to find out how fast water leaves an opening in a water tank. The water level is 0.75 m above the opening. The top of the water tank is opened to the atmosphere.
Select one:
a. 2.15 m/s
b. 14.7 m/s
c. 3.94 m/s
d. 5.0 m/s
A diver steps off the cliffs at Acapulco, Mexico, 31.6 m above the surface of the water. At that moment, he activates his rocket-powered backpack horizontally, which gives him a constant horizontal acceleration of 5.1 m/s2 however does not affect his..
Spaceships of the future may be powered by ion-propulsion engines in which ions are ejected from the back of the ship to drive it forward. What is the velocity of the ions relative to the earth
In a wire of radius R = 3.40 mm the magnitude of the current density is J = Ar/R, where r is the radial distance out from the central axis. What is the total current in the wire
A 310 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 28.0 m/s2 for 32.0 s, and then runs out of fuel. Overlook any air resistance effects.
A given copper wire has a resistance of 5.11 ? at 20.0°C while a tungsten wire of the same diameter has a resistance of 4.61 ? at 20.0°C
You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.27 cm. How far behind the pinhole should you place the viewing screen
a toy car of mass 2.0 kg moving to the right with a speed of 8.0 ms collides perfectly in elastically with another toy
A cube of side of length 0.55 m has a temperature of 310 K and is in a room surrounded by 15.8ºC walls. what is the energy loss rate of the cube
a ball with mass 2.5kg is moving in outer space with a velocity of 6.0 m/s horizontally, and a box of mass 4.5kg is moving with a velocity of 4.0m/s at an angle of 120 degrees from the horizontal
A copper rod 1.2 centimeter in diameter and 27 centimeter long is located across a voltage of 24.0 Volt. Compute the drift speed of the electrons in this rod
a small glass bead has been charged to 25nc.part a what is the magnitude of the acceleration of a proton that is 3.0cm
Two narrow slits separated by 1.6mm are illuminated by 612-nm light. Find the distance between adjacent bright fringes on a screen
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