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A telescope has an objective with a refractive power of 1.35 diopters and an eyepiece with a refractive power of 260 diopters. What is the angular magnification of the telescope?
How much water must be displaced to float a cubical block of wood (density 655 kg/m^3) that is 15.0 cm on a side
It can be shown that asin(theta) + bcos(theta), where ab is not = 0, is a circle. Find the center (in Cartesian Coordinates) and the radius of the circle in terms of a and b
To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole
A block with mass m = 7.0 kg is attached to two springs with spring constants kleft = 37.0 N/m and kright = 48.0 N/m. The block is pulled a distance x = 0.21 m to the left of its equilibrium position and released from rest. 1) What is the magnitud..
A pump discharges water at a rate 100kg/s with a guage pressure of 2atms. the flow is transported by a 10 cm diameter pipe up to an elevation of 5m
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm, what's the balloon's new radius
If a compressive force of 3.2×104N is exerted on the end of a 18cm long bone of cross-sectional area 4.3cm2 , will the bone break, By how much does it shorten
A golf ball strikes a hard, smooth floor at an angle of 30 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.047 kg, its speed is 45 m/s just before and after striking the floor. What is the magnitude of the impuls..
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A 1200 kg car is moving with a velocity of 20 m/s when the brakes are applied uniformly, Find the braking force on the car by finding the acceleration of the car
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. what is the intensity of the light wave
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