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Microsoft Word - Projectiles 1.doc
A 200 kg bucket of cement is accelerated upward by a force of 2200 N. the acceleration continues for 5 s. the power needed at the end of this period is
You are 1.9 m tall and stand 3.4 m from a plane mirror that extends vertically upward from the floor. What is the minimum height the mirror must have
A point charge q = -8.0 nC is located at the origin. Find the electric-field vector at the field point r = (1.2, -1.6) m
A particle with mass 2.30 g and charge +10.0 uC enters through a small hole in a metal plate with a speed of 8.50 m/s, How far will the particle travel, delta x, before it hits the plate
Two forces, of magnitude F1 = 80.0 N and F2 = 45.0 N, act in opposite directions on a block which sits atop a frictionless surface. Find the work W1 done on the block by the force of magnitude F1= 80.0 N as the block moves from xi = -1.00 cm to xf =..
A very light rigid rod with a length of .5m extendsstraight out from one end of a meter stick. Determine the period of oscillation
Determine the minimum size for the secondary mirror so that it collects all the light from a 200mm diameter mirror operating at f/6 for objects subtending up to 0.5 degrees. What is the focal length of an eyepiece that will give you an exit pupil ..
Estimate the power radiated by a basketball at 20 deg C and a human body at 37 deg C. Use Stefan-Boltzmann Law
A life preserver made of Styrofoam is designed to support a person weighing 575 N, Find the volume of Styrofoam required if the body's volume is 0.0503 m^3
water waves approach an underwater shelf where the velocity changesfrom 2.8m/s to 2.5m/s. what will be the angle of refraction
A potter's wheel having a radius 0.47 m and a moment of inertia 10.9 kg•m2 is rotating freely at 46 rev/min. The potter can stop the wheel in 7.0 s by pressing a wet rag against the rim and exerting a radically inward force of 68 N. Find out the effe..
a fighter jet lands on the deck of an aircraft carrier. it touches down with a speed of 73.5 ms and comes to a complete
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