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Q1. If a thunder clap comes 1.4 s after the lightning strike, how far away is the strike? Calculating the wavelength and the speed of sound in air 330 m/s.
Q2. Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats?
Find out line linking the two point charges
A pilot flies an airplane at a constant speed of 520 km/hr in the vertical circle of radius 1400 m. compute the force exerted by the seat on the 105-kg pilot at point A and at point B.
What is linear charge density of the insulating shell
What is EMF in the secondary circuit
The angular momentum of Earth is constant
The frequency of a tuning fork is 358 Hz. Find the length of the shortest organ pipe which will give 6 beats/s with the fork. The velocity of sound in air is 339.1 m/s.
What is eccentricity of the transfer ellipse
The distance between deer B and C is 92 m. What is distance between deer A and C.
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
What range is appropriate
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground as he slows down.
An alpha particle (m = 6.7 x 10^-27kg, q = +3.2 x 10^-19C) has a speed of 30km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle throughout this motion. Find out the electric potential difference.
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