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A bullet weighing 0.08 lb is fired with a horizontal velocity of 1800 ft/s into the lower end of a slender 15-lb bar of length L= 30 in. Knowing that h = 12 in. and that the bar is initially at rest, determine
(a) the angular velocity of the bar immediately after the bullet becomes embedded,
(b) the impulsive reaction at C, assuming that the bullet becomes embedded in 0.001 s.
Calculate the overall noise figure if only the output stage degrades so that its noise figure becomes 6 dB. Discuss the reason that your answer is smaller than in Part (b).
A small ball rolls off the roof edge with a horizontal speed of 3.2m/s. The ball hits the ground a distance of 12.6m from the building's base. Calculate the hieght of the building
In the previous problem useθ= 15°. What is the maximum force pushing down the incline so that the block doesn't slip? What is the maximum force pushing up the incline so that the block doesn't slip?
radioactive isotopes decay according to a first order process. if nt is the number of atoms of a radioactive isotope at
Find out the work completed by neoconservative forces in stopping plane. At the nozzle exit, diameter is 2.5 cm and the density is 1.29kg/m^3. What is the speed of the air as it leaves the nozzle.
A 2.8 cm tall object is 28 cm to the left of a lens with focal length of 15 cm. a second lens with a focal length of 18 cm is 38 cm to right of the first lens. Compute the distance between the original object and the final image. What is the final im..
The distance to a star is approximately 4.2e18 m. If this star were to burn out today, How long does it take for sunlight to reach Jupiter
two narrow slits are illuminated by a laser with a wavelength of 503 nm. the interference pattern on a screen located x
What are the choices for launch sites to inject a satellite in a geostationary orbit (i=0º) Should you try to take advantage of the launch site's eastward rotation by launching from close to the equator?
specific heat of lead = 0.03 cal /gm -0c , latent heat of fusion of lead = 6 cal /gm -0c and j = 4.2 /cals
a 20-kg mass is attached to a spring. if the frequency of the simple harmonic motion is 2pi cycles what is the spring
The light isotope of lithium, 5Li is unstable and breaks up spontaneously into a proton (hydrogen nucleus) and an particle (helium nuclus). In this process, a total energy of 2.75 10-13 J is released, appearing as the kinetic energy of the two rea..
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