What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?
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___ is a unit of length, roughly the distance from Earth to the Sun.
Friction is caused by the ______________ on the two surfaces in contact.
If the resistance of a conductor is doubled, the current gets halved. This is because
What is the duration of the world’s shortest X–ray laser has been successfully created by the scientists?
Due to an acceleration of 1 m/s2 the velocity of a body increases from 15 m/s to 20 m/s in a certain period. Find the displacement (in m) of the body in that period.
An incident ray strikes a plane mirror at an angle of 20 deg with the mirror. The angle between the incident ray and reflected ray is ____.
What is the effective resistance (in Ω) of two resistors 12 Ω and 24 Ω connected in parallel?
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