Answer:
Magnetic force, from north to south.
Explanation:
It is given that,
Mass of the ball, m = 140 g = 0.14 kg
Number of electrons,
Height, h = 110 m
Charge, q = ne
Magnetic field, B = 0.3 T
The potential energy at height of 110 meters is balanced by the kinetic energy as per the law of conservation of energy as :
Magnetic force is given by :
F = q v B
As the direction of magnetic field is from east to west, so from right hand thumb rule the direction of magnetic force is from north to south. Hence, this is the required solution.
because positive and negative attract
A.) It is a constant when the light is traveling in a vacuum
Explanation:
The speed of light is a constant when light is traveling in a vacuum. It is taken as 3 x 10⁸m/s in a vacuum.
- The speed of light is a constant in a vacuum.
- It measures the rate at which light is propagated in space.
- It is used for a number of scientific calculations and deductions.
- In astronomy, it is used as a basis for measuring time.
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Properties of electromagnetic waves brainly.com/question/12450147
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Answer:
they are the same
Explanation:
change in speed is 10km/h for both, and the time is the same for both. they have the same acceleration.
Formation. Fold mountains form when two<span> tectonic</span>plates<span> move towards each other at a convergent </span>plate<span>boundary. </span>Fold mountains form<span> from sedimentary rocks that accumulate along the margins of continents.</span>