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Suppose you wish to fabricate a uniform wire out of 2.30 g of copper. If the wire is to have a resistance of R = 0.500 Ω and if all of the copper is to be used, what must be:
(a) the length of this wire?(b) the diameter of this wire?
A group of astronomers have observed a star "S2" in a 15.2-year orbit around the center of the galaxy. They measured the period of revolution T = 15.2 years, Calculate the mass of the compact object about which S2 is revolving
a spaceship of mass 2.10times106 is cruising at a speed of 4.80times106 when the antimatter reactor fails blowing the
One summer day, you decide to make a popsicle. You place a popsicle stick into a 9-oz glass of orange juice, How long does it take your popsicle to freeze
A bungee cord is stretched between two poles with a force of 415 N. What is the velocity of a wave on this bungee cord
A 0.700-kg ball is on the end of a rope that is 1.30 m in length. The ball and rope are attached to a pole, determine the tangential speed of the ball
a particle of charge of 4.50 x 10-6 c is 12.0 cm distant from a second particle of charge of -2.00 x 10-6 c. calculate
Animals in cold climates often depend on two layers of insulation: a layer of body fat surrounded by a layer of air trapped inside fur or down, What is the thickness of the air layer
Explain the concepts behind the gravitational constant, gc. Define the constant mathematically.
A laser emits light at wavelength ? = 637 nm in a beam of diameter 2.9 mm and at an energy-emission rate of 5.4 mW. At what rate per unit area does the detector absorb photons
An object of mass 1.9 kg starts from rest and slides down an inclined plane 80 cm long in 0.46 s
A highway curve with a radius of 650 m is banked properly for a car traveling 120 km/h. how much sideways force must the tires exert against the road if the car does not ski
Explain functionalism, conflict theory and interactionism
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