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The dimensions of the picture on a 35.0{\rm mm} color slide are x = 24.0{\rm mm} {\times}y = 36.0{\rm mm} . An image of the slide is projected onto a screen 10.0{\rm m} from the projector lens with a lens of focal length 180{\rm mm} .
A) How far is the slide from the lens? in cm
B) What are the dimensions of the image on the screen?
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
The George Washington bridge, that spans the Hudson River between New York and Jersey, is 4670 feet long and is made out of steel, How much does it expand in length between winter and summer.
Helium gas with a volume of 2.60L under a pressure of 1.70atm and at a temperature of 43.0 oC is warmed until both the pressure and volume of the gas are doubled. How many grams of helium are there
Two large, non-conducting plates with the indicated area charge densities are suspended 3.67 cm apart, What volume of the air in region B (between the plates) stores an equal amount of energy
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What is the speed of the galaxy relative to earth
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
What is the magnitude of the vertical component of its velocity as it strikes the ground.
A member of an aircraft maintenance crew wears protective earplugs that reduce the sound intensity by a factor of 350. When a jet aircraft is taking off.
Two charges of +0.250 C are placed at the points (1.25 mm, 0) and (-1.25 mm, 0). A third charge of -0.450 C is placed at the origin. a. What is the electric field at the point (0, 2.20 mm)? b. At what point on the y-axis will E be zero? Show graph..
Suppose after charging a 10.9 µF capacitor to 8 V, What voltage will your voltmeter read across those two capacitors connected in parallel
compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..
Consider a series RLC circuit where R = 957 ? and C = 5.25 ?F. However, the inductance L of the inductor is unknown. To find its value, What is the inductance of the inductor in millihenrys
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