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A cylindrical tank is 50.0 ft deep, 31.0 ft in diameter, and filled to the top with water. A flashlight shines into the tank from above. What minimum angle? Can its beam make with the water surface if the beam is to illuminate part of the bottom? (nwater = 1.33)
A) 49.6°
B) 45.5°
C) 41.1°
D) 53.5°
In a certain series RLC circuit being driven at a frequency of 60.0 Hz, By what phase angle does the current lag the generator emf
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
a major-league pitcher can throw a ball in excess of 40.7 ms. if a ball is thrown horizontally at this speed how much
Two wires are identical, except that one is aluminum and one is copper. What is the resistance of the copper wire
an electron in the hydrogen atom is in an excited state given by n4 l3 ml2 ms12. list the possible final states the
The perihelion distance from the sun for the planet Uranus is 2.750E9 km; the aphelion distance is 3.000E9 km. Calculate the eccentricity of the orbit of Uranus
An electron with kinetic energy 3.90 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 12.0 cm. find the frequency of circling
The energy released by each fission within the core of a nuclear reactor is 2.00 x 102 MeV. Determine the power (in watts) that the reactor generates
An aluminum wire has a cross-sectional area of 2.70x 10^-6 m^2 and carries a current of 7.50 A. The mass density of aluminum is 2.70 g/cm^3. find the average speed of the electons in the wire.
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
reviews the concepts that are involved in this problem. A child is twirling a 0.0211-kg ball on a string in a horizontal circle whose radius is 0.0866 m. Determine the centripetal force acting on the ball
A 66 KG trampoline artist jumps vertcally upward from the top of a platform with a speed of 5.4 m/.s. A) What is his speed as he lands on the trampoline, 3 m below his jump off point? B) If the trampoline behaves like a spring with spring stiffnes..
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