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Problem: What are the dimensions in SI units of a square-shaped acre of ground if 1.000 square mile = 6.40*10^2 acres? Note that 1.00 km = 0.621 mi.
A spring-mass system consists of a mass 1.72 kilogram attached to a light spring and resting on a frictionless table. obtain what is the spring constant in N/m
A rifle shoots a 4.50g bullet out of its barrel. The bullet has a muzzle velocity of 965 m/s just as it leaves the barrel. For how long a time is the bullet in the barrel
As part of a safety investigation, two 1700kg cars travelling at 25 m/s are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.3 seconds to stop, and (b) car that hits a concrete ..
A cannon ball is fired at a wall located 450 meters away. The initial horizontal component of the balls velocity is 90 m/s and it's initial angle is 24 degrees. How long does it take for the ball to reach the wall
A 4 kg box is raised from rest adistance of 6 m by a vertical force of110 N. Find the final kinetic energy of the box
An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, Find the potential difference at the customer's house for a load current of 109 A
A proton, mass 1.67 x 10^-27 kg, is projected horizontally midway between two parallel plates that are separated by 0.30 cm, find minimum speed of the proton that just misses the lower plate as it emerges from the field
create a presentation or power point. you can go to www.microsoft.com and search for brochure and powerpoint
A common belief is that a hole in a jet plane can suck a person out, Calculate the fractional difference between this force and the weight wman of a typical adult male (185 lb)
a total of 3.26 x 106 electrons are placed on an initially uncharged wire of length 1.24 m.a what is the magnitude of
A centrifuge is a common laboratory instrument that separates components of differing densities in solution. evaluate what is the magnitude of its angular deceleration
juana slides a crate along the floor of the moving van. the coefficient of kinetic friction between the crate and the
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