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Q. Explain density?
Answer:-
Density is a physical characteristic also is a measure of mass per unit of volume of a material or substance. It is a dimension of the amount of matter in a given volume of something.
The higher an object's density means the higher it's mass per unit of volume. The average density of an object equivalent its total mass divided by its total volume. A denser thing (such as iron) will have less volume than an equal mass of some less dense substance (such as water).
Velocity: It is common to find people confusing the terms velocity and speed when describing how fast an object is moving. The difference is that speed is a scalar quantit
A 40 kilogram girl climbs a vertical distance of 5 meters in twenty seconds at a constant velocity. How much work has the girl done? Ans: 2000 joules or 1960 joules work is
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A proton (mass = 1.67 x 10 -26 kg charge = 1.60 x 10 -19 C) is running at a speed of 8.50 x 10 4 m/s at a point in an evacuated region of space where the electric potential is 3
If a ball thrown horizontally with a velocity of 20m/s from a tower meters high, after how long will it strike the ground?
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Q. Define: Electric flux. Give its unit. The electric flux is described as the total number of electric lines of force crossing through the given area and its unit is Nm 2 C-1
Q. For projectiles fired at identical speeds but a variety of angles from the ground, neglecting air resistance also the curvature of the Earth at what angle will the maximum horiz
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