Which of the following Newton's laws of motion can explain why a ball thrown at a wall rebounds?
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If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?
The speed of light in vacuum is estimated as ___ meters/second.
In a longitudinal wave, the distance between two consecutive compressions and two consecutive refractions is called
Why does a piece of cloth, which appears green in sunlight, appear black when it is viewed under red light?
The centre of the reflecting surface of a spherical mirror is called the
A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1, in the first 10 s and distance X2 in the remaining 10 s, then which of the following is true?
Which of the following has the same unit as energy?
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