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You decide to determine the depth of a tank of water using the sun's light. With the sun overhead, the tank's bottom is lit, but as the sun sets the bottom begins to be shaded. The tank is 3 feet across and the base is shaded when the sun above the horizon. How deep is the tank?
a.) 0.19 feet
b.) 4.5 feet
c.) 3.3 feet
d.) 5.2 feet
e.) 0.22 feet
A proton travels with a speed of 2.9×10^6 m/s at an angle 44 degrees with a magnetic ?eld of 0.99 T pointed in the +y direction. What is the magnitude of the magnetic force on the proton
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.27 kg, and the wedge has a mass of 5.31 kg. what is the velocity of the ball after the collision
A flower pot falls from the ledge of a building. A person in an apartment below, coincidentally holding a stopwatch, notices it takes 0.7s for the pot to fall past his window, which is 18m high. g=9.81m/s2. How far above the top of the window is t..
A 44.0 kg child is in a swing that is attached to ropes 1.60 m long. The acceleration of gravity is 9.81 m/s2. Find the gravitational potential energy associated with the child relative to the child's lowest position under the following conditions.
A plank 2.00 cm thick and 12.4 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m, find the shear modulus of the wood
Find the location of the center of mass of a nonuniform rod0.38 m in length if its density varieslinearly from 0.92 g/cm at one end to5.30 g/cm at the other end. Specify thecenter-of-mass location relative to the less-massive end of therod.
A laser peripheral iridotomy is a procedure for treating an eye condition known as narrow-angle glaucoma, in which pressure buildup in the eye can lead to loss of vision. How many photons does the laser deliver
A singly charged ion of unknown mass moves in a circle of radius 14.5 cm in a magnetic field of 7.4 T, What is the mass of the ion
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
You would like to store 8.6J of energy in the magnetic field of a solenoid. What is the magnitude of the magnetic field inside the solenoid
A point on the edge of a 2 m diameter wheel moves at a speed of 5 m/s with respect to the axle. What is the angular velocity of the wheel
an aluminum-alloy rod has a length of 10.008 cm at 16.400degc and a length of 10.020 cm at the boiling point of water.a
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