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A bullet with mass 5.44 g is fired horizontally into a 2.103-kg block attached to a horizontal spring. The spring has a constant 6.32 102 N/m and reaches a maximum compression of 5.55 cm.
(a) Find the initial speed of the bullet-block system.
m/s
(b) Find the speed of the bullet.
a 30kg child wants to use a 20kg board that is 6.0m long as a seesaw. since all her friends are busy, How far from her will the support be
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In February 1955, a paratrooper fell 370 m from an airplane without being able to open his chute but happened to land in snow, find the magnitude of the impulse on him from the snow
we can assume that the arm moves with constant speed during each swing. Illustrate what is the acceleration of a 1.3g drop of blood in the fingertips at the bottom of the swing?
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A sodium surface, which has a work function of 2.46eV is illuminated with a wavelength = 300nm light. What is the deBroglie wavelength of these electrons
An oscillator with a mass of 430 g and a period of 0.900 s has an amplitude that decreases by 1.00% during each complete oscillation. If the initial amplitude is 9.20 cm, what would be the amplitude after 44.0 oscillations? At what time will the e..
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string
Two loudspeakers are located 3.57 m apart on an outdoor stage. A listener is 26.7 m from one and 27.7 m from the other. What is the lowest frequency that gives the maximum signal (constructive interference) at the listener's location
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