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Question: A rifle with a barrel length of 60 cm fires a 11g bullet with a horizontal speed of 350m/s . The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How long does it take the bullet to come to rest after entering the wood?
A diverging lens by focal length of -30cm is placed 15cm behind a converging lens with a focal length of 20 cm. Where will an object at infinity be focused and what is the right race tracing?
A charged particle moves in a uniform magnetic field of 0.817 T with a period of 2.13 × 10-6 s. Find its charge-to-mass ratio.
A 33.1-A current flows in a long straight wire. Find the strength of the resulting magnetic field at a distance of 65.7 cm from the wire
Show that in the space of square integrable functions the hermitian conjugate of the operator d/dx is -d/dx, that is, integral from neg infinity to pos infinity X*(x) d/dx psi(x) dx = - integral from neg infinity to positive infinity (d/dx X(x))* ..
in a certain right triangle the two sides that are perpendicular to each other are 3.70 m and 5.40 m long. what is the
which is true about the capacitance of a parallel-plate capacitor?a it is proportional to both the plate separation and
Two polarizers are oriented at 38 degrees to one another. Light polarized at a 19 degree angle to each polarizer passes during both. What percent reduction in intensity takes place?
A football is kicked from ground level with an initial velocity of 23.4 m/s at angle of 37.0° above the horizontal. How long is the football in the air before it hits the ground
Light in air is incident at the polarizing angle on a certain piece of glass. The angle of refraction is 32°. Evaluate the index of refraction of the glass
An object is thrown horizontally with a speed of 10.0 m/s from a balloon at an elevation of 20.0m. Determine the horizontal distance traveled by the object
Explain what is the difference between 10 dB and 20dB - Playing middle C on the piano keyboard produces a sound with a frequency of 256 Hz. Assuming the speed of sound in air is 345 m/s, determine the wavelength of the sound corresponding to the n..
The free end of the copper rod is maintained at water"s boiling point, and the free end of the brass rod is maintained at water"s freezing point.
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