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A thin layer of liquid methylene iodide (n = 1.756) is sandwiched between two flat, parallel plates of glass (n = 1.50). What must be the thickness of the liquid layer if normally incident light with ? = 552 nm in air is to be strongly reflected? nm
Suppose the pressure of the gas equals to p=aV^2, where a is constant. Find the heat transfer to the gas during this process if this is a reversible change.
a drawbridge with a weight of 5000 n is supported by a hinge and rope and is in static equilibrium. the length of the drawbridge, l, is 5 meters, what is the tension force the rope provides
In recent years, a number of nearby stars have been found to possess planets. Find the mass of the star
A rocket is launched at an angle of ? = 46° above the horizontal with an initial speed vi = 50 m/s, What is the rocket's total time of flight
A robot probe drops a camera off the rim of a 388 m high cliff on Mars, where the free-fall
Christy has a grandfather clock with a pendulum that is 1.000 m long. If the pendulum is modeled as a simple pendulum, what would be the period
A stable and highly soluble pollutant is dumped into a lake at the rate of 0.19 tonnes per day. The lake volume is 2E7 m3 and the average water flow-through rate is 8E4 m3 per day
A window air conditioner unit absorbs 9.85 104 J of heat per minute from the room being cooled and in the same time period deposits 1.47 105 J of heat into the outside air. What is the energy efficiency rating of the unit
A space probe which is a distance of 1.6×1010 m from a star measures the total intensity of electromagnetic radiation from the star to be 5700 W/m^2. what is its total average power output
question1a tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement
suppose an electric motor continuously operating with average power 4.65 kW runs the pump. Find its efficiency.
a 57 kg researcher absorbs 6.3*10^8 neutrons in a workday. The energy of the neutrons is 2.6 MeV. What is the equivalent dosage of the radiation exposure
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