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Q.Two loudspeakers in a 20^circ {rm{C}} room emit 690 Hz sound waves along the x-axis.
What is the smallest distance between the speakers for which the interference of the sound waves is destructive?
Q. A basketball is thrown with an initial speed of 4.0 m/s as shown in the above figure. A straight line drawn from the release point to the landing point makes an angle of 30 degrees with the horizontal. What is the release height?
Clarify how Einstein's contribution to understanding the force between the earth and the moon differed from Newton's. Include a short statement of Einstein's explanation in the answer.
What is the electric field strength at midpoint between two disks.What is the electric field strength a point on axis 5.0 cm from one disk between them.
Find out ratio of the detector
A beam of parallel rays from a 24 MHz citizens band radio transmitter passes between two electrically conducting (hence opaque to radio waves) buildings located 45.00 m apart. What is an angular width of the beam as it emerges from between the buildi..
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Your motorboat can move at 30km/h in still water. How much time would it take you to move 12km upstream, in a river flowing at 6km/h.
Charge A and charge B are 2.5 m apart. Charge A is 1.4C and charge B is 2.5C. Charge C, which is 2.0 C, is situated between them and force on charge C is zero. How far from charge A is Charge C.
Solve the algebraic expression by using power rules.
What is phase change as the light is reflected from the top
Horse races once around a circular track in a time of 176 s, with a speed of 26 m/s. What is the radius of the track.
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.
In the lungs there are tiny sacs of air that are called alveoli. An oxygen molecule (mass = 5.30 x 10-26 kg) is trapped within a sac, and the uncertainty in its position is 0.140mm. What is the minimum improbability in the velocity of this oxygen ..
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