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An block of a certain substance is floating in water with a piece of lead of density 1.13 e4 kg/m3 placed on top of it. The block has 0.900 of its total volume submerged. The piece of lead is removed from the top of the block and attached to the bottom of the block (underwater). Now the volume of the block that is submerged is 0.896 of its total volume. Find the density of the block.
When doing a sound experiment, you recorded the sound of a single frequency sound when it was stationary. What frequency did you hear as your friend rode away from you
the catapult on an aircraft carrier can take an aircraft from 0 to 215 mph in 12 seconds at which time the aircraft
A force of 12.0 Newton pulls horizontally on a 1.3 kilogram block that slides on a rough, horizontal surface. Find what is the acceleration of the blocks
the observer is positioned so that the far edge of the bottom of the empty glass is just visible. when the glass is
Two light sources are utilized in a photoelectric experiment to decide the work function for a particular metal surface. When green light from a mercury lamp (λ = 546.1 nm) is utilized, a stopping potential of 0.930 V reduces the photocurrent to zero..
In a series L-R-C circuit, the components have the following values:L = 21.5mH , C= 165uf , and R= 320 ohm. Determine the average power supplied by the generator
you have a lens whose focal length is 6.63 cm. you place an object on the axis of the lens at a distance of 12.7 cm
A rocket is used to place a synchronous satellite in orbit about the earth. what is the orbital speed of the satellite in orbit
In Fig. 29-43, point P2 is at perpendicular distance R = 21.4 cm from one end of straight wire of length L = 10.7 cm carrying current i = 0.949 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P2 (in T)?
A 1-cm tall object is placed 10-cm in front of a concave mirror. a 4-cm tall image is formed infront of the mirror. Draw a diagram for this problem.
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 53.5 m/s and returns the shot with the ball traveling horizontally at 39.0 m/s in the opposite direction. What work does the racquet do on the ball
a lead bullet with a mass of 0.02 kg traveling at 198 ms strikes an armor plate and comes to a stop. if all the energy
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