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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 bat flies toward a wall, emitting a constant sound of frequency 2.00 rm kHz. This bat hears its own sound plus the sound reflected by the wall.
given y 2 sin 2p x 1 find the amplitude the period and the phase shift.given y - 3 cos 4x - p 2 find the amplitude
A sealed 63 m3 tank is filled with 5000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. determine The mass density of the oxygen gas
A system consisting of two positive particles is altered by anoutside force so that its potential energy decreases by52.3 J. There is no change in kinetic energy between theinitial and final states of the system. (a) What is the work doneby the ou..
A white billiard ball with mass mw = 1.52 kg is moving directly to the right with a speed of v = 3.22 m/s and collides elastically with a black billiard ball with the same mass mb = 1.52 kg that is initially at rest. What is the final speed of the..
A point on the rim of a 0.30-m-radius fan blade has centripetal acceleration of 0.35 m/s2. Find the centripetal acceleration of a point 0.040 m from the center of the same wheel
Seismic p-waves travel at abou 6 km/s and s-waves at 4 km/s. how far away was the earthquake that produced them
A 70kg skateboarder comes over the top of a hill at 6.0m/s and reaches 12m/s at the bottom. Find the total work done on the skateboarder
Three objects are connected on the table as shown in Figure P5.44. The table is rough and has a coefficient of kinetic frictionof 0.350. find the acceleration of each object and their directions
q. a speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. the belt of
How to find out the magnitude of the acceleration
a 20 kg mass sits on an inclined plane with friction making an angle of 50 degrees with respect to the horizontal. calculate the frictional force required to keep the mass from sliding down the incline
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