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If your pupil diameter is 2 , as it would be in fairly bright light, what is the smallest diameter circle that you can barely see as a circle, rather than just a dot, if the circle is at your near point, 25 from your eye? Assume the light's wavelength in air is 600 and the index of refraction inside the eye is 1.33.
Determine the total energy radiated by the Sun each day. The Stephan-Boltzmann constant is 5.6696 × 10-8 W/m2/K4, e = 1, and the radius of Sun is 6.96 × 108 m.
A heat engine operates between a high-temperature reservoir at670K and a low-temperature reservoir at 320 K. What is the magnitude of the net change in entropy as a result of this cycle
Consider two masses m1 and m2 at the top of two frictionless inclined planes. Both masses start from rest at the same height. However, the plane on which m1 site is at an angle of 30 degrees with the horizontal,
A bowl in the shape of half of a sphere is floating on the surface of water. The mass of the bowl is 0.8 kg. What is the outer radius of the bowl Rbowl
A trees image on a 35mm color slide is 1.8mm high. It is to beprojected onto a screen 3m from the slide and will appear 493mmhigh. What is the magnification of the system
A uniform beam having a mass of 60 kg and a length of 2.8 meter isheld in place at its lower end by a pin. Its upper end leansagainst a vertical frictionless making an angle of 40 degrees withthe horizontal. What is the magnitude of the force by t..
A student standing on the ground throws a ball straight up. How long is the ball in the air before it hits the ground
If the gauge pressure of the blood at your heart is 13.25 kPa and your body doesn't compensate, what would the pressure be at your head, 57.4 cm above your heart
An engineer claims to be able to compress 0.100 kg of water vapor at 200. degrees C and 0.100 MPa in a piston-cylinder arrangement in an isothermal and adiabatic process. determine final temperature and pressure
Jim is speeding toward James Island with a speed v = 22 m/s when he sees Betsy standing on shore at the base of a cliff. Jim sounds his f = 365-Hz horn. What frequency does Betsy hear
An ocean liner leaves New York City and travels 21° north of east for 134km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
q1. 0.55 kg block of ice is sliding through you on the very slippery floor at 3.6 ms. as it goes by you give it a kick
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