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Q. The sun shines on a thin so that a 440 nm blue light is seen reflecting off the film. What is the minimum thickness of the film?
Q. A 55.0 g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.50 ms, what is the magnitude of the average acceleration of the ball during this time interval?
Find out the velocity of the rain
How long would it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 335m.
The electric field lines on the left have twice the separation of those on the right. If the magnitude of field at point-A is 60 V/m, what is the magnitude of the field at point-B.
Cold fusion theory.
A total of 34 bright and 34 dark Newton's rings (not counting the dark spot at the center) are observed as 550 -nm light falls normally on a planoconvex lens resting on a flat glass surface. How much broad is the center than the edges.
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
Find a circuit to change the relationship between waveform and zero-volt axis & calculating the period of waveform.
What is acceleration due to gravity
A 13g bullet traveling 221 m/s penetrates a 2 kg block of wood and emerges cleanly at 160 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
An electric field of 254,000 N/C points due west at the certain spot. What are the magnitude and direction of the force that acts on the charge of -8.1 µC at this spot.
A speedboat starts from rest and accelerates at +2.01 m/s2 for 6.95 s. At the end of this time, the boat continues for the additional 5.70 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.20 s.
Two runners start simultaneously from the same point on the circular 200 m track and run in opposite directions. One runs at a constant speed of 6.14 m/s and the other runs at a constant speed of 5.43m/s. When they first meet, for how long a time ..
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