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Solve the following question given below:
Question: An object is 12 cm in front of a concave mirror, and the image is 3.0 cm in front of the mirror.
A- What is the focal length of the mirror?
Show all work, use additional paper if necessary.
Rays of the Sun are seen to make a 35.6 angle to the vertical beneath the water. At what angle above the horizon is the Sun
The train's weight is 17 Tons and the desired speed is500km/hr. The test rail track is 20Km long. how much current is necessary to create that magnetic field
A four-turn circular wire coil of radius 0.565 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.340 T. what is the average induced emf in the wire during this time
David is driving a steady 24 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant while David passes. How far does Tina drive before passing David.
A 33.8-kg child runs with a speed of 2.80 m/s tangential to the rim of a stationary merry-go-round. Calculate both the initial and the final kinetic energy of the system
Suppose you are on Mars when it is 9x10^10 m from earth. You call earth for the correct time and receive a recorded message indicating that the time at the tone is exactly 5:00 pm
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos(4.16t â€" 2.45). Find the total energy of the oscillating spring
a 2.73 kg wood block is launched up a wooden ramp that is inclined at a 30deg angle. the blocks initial speed is 10.15
Calculate the energy needed to accelerate a spaceship with a mass m = 25 × 103 kg toa speed of 0.40c. Compare this number with the approximate annual energy usage ofEarth, 1021 J
An electron of ? = 0.999 993 moves along the axis of an evacuated tube that has a length of 2.69 m as measured by a laboratory observer S at rest relative to the tube
A Carnot engine absorbs 4.65×103 Joule from the hot reservoir and expels 3.12×103 Joule to the cold reservoir during each engine cycle. Evaluate what is the temperature of the hot reservoir
A 1.20 kilogram object is held 1.20 meter above a relaxed, mass less vertical spring with a force constant of 340 N/m. Evaluate how far does the object compress the spring
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