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An object located 13cm in front of a concave mirror creates a real image 4 cm in front of the mirror. A second object, three times as tall as the first one, is placed in front of the mirror but at an unknown location. The image of this second object is half the height as the first image. How far in front of the mirror is the second object?
(Please explain the steps by using the variables do, di, f, ho, hi)
Oscilloscopes are found in most science laboratories. Inside, they contain deflecting plates consisting of more-or-less square parallel metal sheets, what is the strength of the electric field between the plates
A battery supplies 0.77 A to three resistors connected in parallel. What is the exact current (in A) through the third resistor
q1 has mass 0.2 gram and charge q2 is 2.7 x 10-9 C. The separation r is 4.1 centimeter, and the angle θ is 13.9o. Obtain the magnitude of the electric field produced by q2 at the location of q1
A 66kg man's arm, including the hand, can be modeled as a 71-cm-long uniform cylinder with a mass of 3.3kg. By how much does he raise his center of gravity
Many satellites are moving in a circle in the earth's equatorial plane, Obtain the altitude of these satellites above the earth's surface
One blade of a pair of scissors rotates clockwise in the xy plane. What is the direction of omega vec? What is the direction of avec if the magnitude of the angular velocity is decreasing in time?
At a distance of 60.0km from a radio station antenna the electric-field amplitude is 8.80×10?2 V/m, Assuming that the antenna radiates equally in all directions (which is probably not the case), what is the total power output of the station
A 131kg astronaut (including space suit) acquires a speed of 2.32m/s by pushing off with her legs from an 1760kg space capsule. What is the change in speed of the space capsule
a massive ring radius a and mass m lies on the xy plane. calculate the force f on a test mass m at position z on
A particle ( m = 1 kg ) moves on the x axis. The initial position isx= 0 and the initial velocity isv(0) = 5m/s. Determine the final velocity of the particle
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the speed and acceleration of the pebble
a light beam is traveling through an unknown substance. when it exits that substance and goes into air the angle of
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