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A boat has green light of wavelength l = 500 nm on the mast. What wavelength would be measured and what colour would be observed for this light as seen by a diver submerged in water by the side of the boat? Given nw = 4/3.
(A) Green of wavelength 500 nm
(B) Blue of wavelength 376 nm
(C) Green of wavelength 376 nm
(D) Red of wavelength 665 nm
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
The magnetic field in an electromagnetic wave has a peak value given by B = 2.7mu T. Find the average intensity
The nearest star to the Sun is 25 x 10^12 miles away. How far is this in light-years
the roof of a two-story house makes an angle of 29deg with the horizontal. a ball rolling down the roof rolls off the
Two trains on separate tracks move toward each other. Train 1 has a speed of 129 km/h; train 2 a speed of 75.0 km/h. What is the frequency heard by the engineer on train 1
the membrane that surrounds a certain type of living cell has a surface area of 4.00 10-9 m2 and a thickness of 1 10-8
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Two tiny conducting spheres are identical and carry charges of -18.8C and +68.2C. They are separated by a distance of 3.32 cm. What is the magnitude of the force that each sphere experiences
A different Wheatstone bridge has a sensitivity of 2.6 mV/O. What will be the approximate output voltage difference when ?Rx = 50 O? Express the answer in millivolts.
A basketball player shoots a 0.75-kg ball into a basket by shooting the ball with an initial speed of 12 m/s at an angle of 60 above the horizontal. The basket is three meters o the ground and the ball leaves her hand at a height of 1.4 meters above ..
A raft is constructed of woodhaving a density of 626.2kg/m3. how deep is the bottom of the raft below water level
Ten boxes, each 28.0 cm high and weighing215 N, initially are all side by side onthe floor. The boxes are lifted and placed in a vertical stack2.80 m high in a time interval of5.50 s. Compute the power necessary tostack the boxes.
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