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A piece of dynamite is used to break apart a huge 30000 kg boulder (approximately 5 m3 sphere) that rolled into a nice suburban middle-class couple's living room about a decade ago in Spring Valley. One 6000 kg piece rolled away at 1.5 m/s N, a 9000 kg piece rolled away at 1.0 m/s S, and an 5000 kg piece rolled away at 3.0 m/s W.
(a) What are the momenta of these three chunks? Remember to express them as 2-D vectors.
(b) In what direction and with what speed did the remaining fourth piece roll away?
how far from the woman will he be now. How various revolutions will the car have gone through when the magnitude of its total acceleration is 3.30 m/s^2.
The wave function y(x, t) for a certain standing wave on a string fixed at both ends is given by y(x, t) = (0.05 m) sin (1.8 m-1x) cos (400 s-1t). What is the shortest possible length of the string
Coherent light with wavelength 592 nm passes through two very narrow slits, and interference pattern is observed on the screen a distance of 3.00 {rm m} from the slits. The first-order bright fringe is the distance of 4.84 {rm mm} from the center o..
A firefighter mounts the nozzle of his fire hose a distance 30.5 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. By what factor was the nozzle diameter changed
Two people push a stalled car at its front doors, each applying a 260 N force at 25 degree to the forward direction. How much work does each person do pushing car 5.5 m.
A solar cell, 3.0cm square, has an output of 350mA at 0.80V when exposed to full sunlight. How many cells do you need to build the panel
In a 6.5×10?3-m3 volume of ideal gas at the pressure of 2.7×106 Pa, How many molecules are in the sample
A skier is accelerating down a 30.0° hill at a = 4.20 m/s^2. What is the vertical component of her acceleration
A crazy anti-textbook Pearson rep goes ape and tries to chop a 6.0 cm thick textbook in half to show you how books, what force did the book exert back while it was being cut
Sucrose is allowed to diffuse along a 12.0-cm length of tubing filled with water. What is the difference in the concentration levels of sucrose at the two ends of the tube
When you ride a bicycle at constant speed, almost all of the energy you expend goes into the work you do against the drag force of the air. how much power does she expend as she cycles
A convex lens is made of crown glass with index of refraction n=1.5296 at 480.0 nm and n=1.5203 at 656.3 nm. the radius of curvature of each face is 6.500 cm. Find the focal length of the lens at each wavelength.
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