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Solve the given question:
Kim says that she was less than 10 ft away from the president when she took a picture of him with her 43-mm focal length camera lens. The picture shows the upper half of the president's body (or 3.3 ft of his total height). On the negative of the film, this part of his body is 18 mm high. How close was Kim to the president when she took the picture?
(In ft)
Show all work, use additional paper if necessary.
A large power plant converts 1000 kg of water to steam every second to run its generators. Compute the amount of heat required each second just to vaporize the water, assuming this is done at 100 C. What is the power input in megawatts for this pu..
Consider a fusion reaction in which two deuterium nuclei fuse to form a tritium nucleus and a proton. How much energy is released in this reaction
Four identical charges (+1.5 mC each) are brought from infinity and fixed to a straight line. Each charge is 0.51 meter from the next. Find the electric potential energy of this group
Nichrome wire is used in some radiative heaters. Find what power will it draw when first switched on
A bug is splattered on a car windshield. Evaluate the magnitude of the windshield's force on the bug to the magnitude of the bug's force on the windshield.
You have an organ pipe that resonates at frequencies of 800, 1120, and 1440 Hz but nothing between these. What is the fundamental frequency for this pipe
At Green Hills golf course, the ninth hole par 3 isfrom an elevated tee box. With a laser rangefinder, a golfermeasures the flag to be 143 m 18.5 degrees below thehorizontal.
On October 9, 1992, a 27-pound meteorite struck a car in Peekskill, NY, leaving a dent 22 deep in the trunk. what was the magnitude of its deceleration
What least heat is needed to bring 80 of water at 20 to the boiling point and completely boil it away? (answere in Joules).
You walk 30 meter south and 30 meter east. Obtain the direction and magnitude of the resultant displacement both algebraically and graphically
A Ball Rolling Uphill. A bowling ball rolls without slippingup a ramp that slopes upward at an angle beta to the horizontal. What is the acceleration of the center of mass of the ball
A lead bullet (? = 11.3 X 103 kg/m3) is placed in a pool of mercury (? = 13.6 X 103 kg/m3). What fractional part of the volume of the bullet is submerged
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