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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°
A person with mass mp = 77 kg stands on a spinning platform disk with a radius of R = 2.16 m and mass md = 185 kg. The disk is initially spinning at ? = 1.6 rad/s. The person then walks 2/3 of the way toward the center of the disk (ending 0.72 m f..
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
he New England Merchants Bank Building in Boston is 152m high. On windy days it sways with a frequency of 0.20Hz, What is the total distance, side to side, that the top of the building moves during such an oscillation
The expected and the actual rate of return on plan assets for 20X9 was 10%. There are not other components of Loch's pension expense. Illustrate what amount should Loch report in its December 31, 20X9 balance sheet as prepaid pension cost?
A black wood stove with surface area 4.6 m^2 is made from cast iron 4.0 mm thick. What is the rate of heat loss by radiation from the stove
If astronauts could travel at v= 0.950c, we on Earth would sayit takes (4.20/0.950) = 4.42 years to reach Aplha Centauri, 4.29light years away. How much time passes on the astronauts clocks
A block of mass 3.65kg and density 600 kg/m^3 floats in a bath of oil of density 970kg/m^3. calculate total volume of wood and metal
Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
two capacitors, when connected in series have an equivalent capacitance of 200 microfarads. calculate the capacitance of each capcitor
one can not align the apparatus to eliminate entirely the effects of the earths magnetic field. consider the case where
A stunt pilot is attempting to drop a water ballon from a moving air plane onto a target on the ground. the plane moves at a speed of 79.69 m/s and a 39 above the horizontal when the ballon is released. at the point of release the plane is at an alti..
In a crash test a car of mass 1,864 kg collides head on with a wall with speed 12.96 m/s in the -ve x direction. The collision lasts for 0.062 s. find the average net force exerted on the car by the wall
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