If a person moves a trolley for a distance of 10 m with a force of 50 N, then the work done is
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If you look into a mirror and find that the image (your reflection) is smaller than you, then the type of the mirror is:
1 WH =
The watt-hour (WH) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time.
1 WH = 3600 joules.
AV= constant, where A= area of cross-section and V= velocity of fluid. This equation is called _____.
If the speed of an object moving along a straight line is constant, its motion is said to be _________.
Which mirror is used as rear view mirror in vehicles?
Convex mirror is used as rear view mirror in vehicles. Because the image is smaller, more image can fit onto the mirror, so a convex mirror provides for a larger field of view than a plane mirror. This is why they are useful.
Calculate the time period (in seconds) of a sound wave of wavelength 2m travelling with a speed of 250 m/s.
Temperature of distant luminous bodies can be determined by
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