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Consider a concave mirror with a focal length of 15.54 cm.
a) Find the image distance when the object distance is 15.54 cm. (Answer with -1000 if the image does not exist.) Answer in units of cm.
b) Find the image distance when the object distance is 7.77 cm. Answer in units of cm. (Answer with -1000 if image does not exist)
c) Find the magnification of the image for part b. (Answer with -1000 if the image does not exist)
Presume that the strength of the electric ?eld about an isolated point charge has a certain value at a distance of 4 m.
Two point charges are on the y-axis. A 5.0 μC charge is located at y = 1.00 cm, and a -2.18 μC charge is located at y = -1.60 cm. Find the total electric potential at the origin.
Two crickets, Chirpy and Milada, jump from the top of a vertical cliff. Chirpy just drops and reaches the ground in 3.00s, How far from the base of the cliff will Milada hit the ground
A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28°C, how far away is the mountain that reflected the sound wave.
The gravitational potential energy of all the water stored behind avery large dam is 1.2×1016 J, using the base of the damas the reference point for zero PE.
A Carnot engine does work of 150 J per cycle. The engine operates between two reservoirs at 20 degree C and 500 degree C. How much energy is lost per cycle in its exhaust
A flight attendant pulls her 70 N flight bag a distance of 378 m along a level airport floor at a constant velocity. Find the work she does on the flight bag
What is the final temperature when .032kg of milk at 11C is added to .16 kg of coffee at 91C. suppose the specific heat capactieis of the two liquids are the same as water, and disregard any energy transfer to the liquid's surroundings.
An AC source with an output rms voltage of 34.5 V at a frequency of 60.0 Hz is connected across a 10.2-µF capacitor. Find the maximum current in the circuit
an asteroid fragment wandering through space is often referred to as a meteoroid. when entering earths atmosphere some
The potential difference between a storm cloudand the ground is 100 million volts. what is the change of potential energy of the charge
An airplane, diving at an angle of 48º with the vertical, release a projective at an altitude of 830m. What was the vertical component of its velocity just before striking the ground
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