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The moon is at a mean distance Dm = 3.84 x 10^5km from the earth; the sun is at a mean distance Ds = 1.496 x 10^8km. The radius of the moon is Rm = 1.74x10^3km; the radius of the sun is Rs = 6.96 x10^5km. Compute the angular diameter in degrees subtended by the sun and the moon. You can Refer to a figure online for help. Compute the solid angle subtended by the sun and the moon. Which appears larger from the Earth, and by what percentage do the two soling angles differ? If the above values were constant, would it be possible to explain the occurrence of total solar eclipses?
A uniform charged disk of radius 30.0cm carries charge with a density of 8.00x10^-4 C/m^2. Calculate the electric field on the axis of the disk at
A muscle-tendon unit is composed of a tendon with a stiffness of 6640N/m, a muscle with a stiffness of 9070N/m, What is the stiffness of the muscle-tendon unit
A rock is shot up vertically upward from the edge of the top of the building. The rock reaches its maximum height 2 s after being shot. find how tall is the building
A gate is free to rotate without friction about its hinges at H. The gate is initially at rest. Compute the magnitude of the mud's angular momentum about H
An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the ..
Tam walks with the velocity of 1.8 m/s west. He does so while riding on a conveyor belt that moves at a velocity of 0.7 m/s west. What is Tam's velocity.
A 24-kg boy stands 1 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 218 kg m2. Calculate the speed of the boy relative to the surface of the merry-go-round
An Oscilloscope grid is calibrated so that one square represents 1-V vertically and 1 msec horizontally. If the height of a square wave pulse display is 6 squares, the width of the pulse is 7 squares, and the cycle of the wave is 16 squares, the a..
A 20 wood ball hangs from a 1-long wire. The highest tension the wire can withstand without breaking is 600. A 0.90 projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have with..
An object that is 27 cm in front of a convex mirror has an image located 13 cm, How far behind the mirror is the image located when the object is 13 cm in front of the mirror
A ball is thrown straight upward with an initial speed of 25 m/s. how high does the ball go before falling back down
Two narrow slits 0.286 mm apart are illuminated by light of wavelength 542. nm. The light falls on a screen 1.60 m away from the slits. What is the angular seperation between adjacent maxima
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