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A double slit experiment is performed with sodium(yellow) light of wavelength 589.3nm and the interference pattern is observed on a screen 100 cm away. The tenth bright frnge has its centre at a distance of 12mm from the central maximum. Find the separation between slits.
A train horn is heard at a 50 dB level by an observer 10 km away. What is the average power generated by the horn
An electron and a positron, each moving at 3.0 x 10^5m/s, collide head on, disappear, Determine the energy and momentum of each photon
A car travels at a constant speed around a circular track whose radius is 2.51 km. What is the magnitude of the centripetal acceleration of the car
Physics: Solve a population doubling question, An easy way to find the time it takes for compound interest to double an investment is to divide 72 by the interest rate in percent.
What is the acceleration of the bullet while it is in the barrel, For how long is the bullet in the barrel
How much does it cost to cook food in a 12,000 W oven for 47.6 minutes? Assume electricity costs 8.0 cents per kW·h
a cylinder contains 4.0moles of a monoatomic gas at an initial temp of 27deg C. How much heat flows in to our out of the gas
A parallel-plate capacitor has a capacitance of c1 = 5.5 ?F when filled with air and c2 = 33 ?F when filled with a dielectric oil at potential difference of 12 V, Input an expression for the permittivity of the oil
An object rotates about a fixed axis, and the angular position of a reference line on the object is given by ? = 0.60e8t, what are the magnitudes of the point's
suppose that all the energy goes into the arrow, with what speed does the arrow leave the bow.
A thin rod consists of two parts joined together. One third of it is silver and two-thirds is gold. The temperature decreases by 24C°.
If a system in equilibrium with two masses m1 and m2 are placed at distances d1 and d2 from the fulcrum, then f1 d1= f2 d2. Is this the same as saying that m1 d1= m2 d2? Give details.
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