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A figure skater who while spinning in place drag her arms in to increase her rotational speed is most closely exhibiting which of the following
Answer:-
a) Conservation of angular momentum
b) Centrifugal force
c) Satellite motion
d) Centripetal acceleration
Q. A rubber ball is dropped to the floor. What force act on the ball to bounce? Does the Earth "bounce" too? Ans. The force of the Earth pushing back on the ball causes
The temperature of a body is measured indirectly by making use of the fact that certain physical property of a substance changes linearly with the temperature If the value of th
Red light (λ = 685 nm) falls on a slit that is 0.025 mm wide. The distance between the centers of the central bright band and the second-order dark band is 6.3 cm. What is
What is larger the force the earth exerts on us or the force you exert on the earth? A non-scientist's initial stab at this: If you are talking about gravity, they are equivale
Length contraction (relativity of length) is the length of a body moving with a relativistic velocity v = c relative to an observer is contracted by a factor in the direction of m
Electric Motor: A device, which converts electric energy into mechanical energy is known as Electric Motor. Factors on which the speed of Rotation of Motor Depends: The
REALIZE THE FOLLOWING FIR SYSTEM IN CASCADE FORM REALIZATION
Q. The kinetic energy of an electron 120 eV. Compute the de Broglie wavelength of electron. λ = h / √2mE λ = 6.626 X 10 -34 / √ 2 X 9.1 X 10 -31 X 120 X 1.6 X 10 -19
Explain the basic concept of sonar. Basic concept of SONAR: Sonar is based ontpo the echo-sounding technique of ultrasound. While an ultrasonic wave is transmitted by water,
Evaluate frequency to shatter the glass with a resonant vibration? Standing-wave vibrations are set up in a crystal goblet with four nodes and four antinodes equally spaced arou
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