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Detect burglars entering windows: Describe how you will design a device that uses electromagnetic induction to detect a burglar opening a window in your ground floor apartment. Include drawings and a word description.
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Question: The radius of the earth's orbit around the sun (assumed to be circular) is 1.5*10^8 km , and the earth travels around this orbit in 365 days. a) What is the magnitude of the orbital velocity of the earth in m/s ...
Question: What is the purpose of the rheostat in the resistance and resistivity experiment? 1) to limit the current in the circuit. 2) to overheat. 3) as an aid to adjusting the current in the circuit. 4) it is the resis ...
Question: A standard 100 W (120 V) lightbulb contains a 9.00cm -long tungsten filament. The high-temperature resistivity of tungsten is 9.0 x 10^- 7 Ωm. What is the diameter of the filament? Express your answer with the ...
Problem: Here we ponder a few issues related to thermodynamic reversihilityfirrerversihility. Recall that a process is said to be thermodynamically reversible if and only if there exists an e?ecing process. That can retu ...
Question: In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-12b, has a diameter that is 1.7 times that of Jupiter (RJupiter = 6.99 Ã- ...
In raising a 6400-N piano with a pulley system, the movers note that, for every 3.0 m of rope pulled down, the piano rises 0.26 m Ideally, find the force required to lift the piano. Express your answer to two significant ...
Question: A ring with radius R and a uniformly distributed total charge Q lies in the xy plane, centered at the origin. Part A: What is the potential V(z) due to the ring on the z axis as a function of z? Express your an ...
Question: Pluto moves in a fairly elliptical orbit around the sun. Pluto's speed at its closest approach of 4.43 *10^9 km is 6.12 km/s. What is Pluto's speed at the most distant point in its orbit, where it is 7.30 *10^9 ...
Question: A skier is accelerating down a 30.0 degree hill at 1.80 m/s2. What is the vertical component of her acceleration? How long will it take her to reach the bottom of the hill, assuming she starts from rest and acc ...
A system of four particles moves along one dimension. The center of mass of the system is at rest, and the particles do not interact with any objects outside of the system. Find the velocity, v4, of particle 4 at t1 = 2. ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As