Answer:
B2 = 2.22mT
Explanation:
See attachment for the calculation.
Assuming the angle the magnetic field makes with the direction of current flow is the same in both cases and that the same current flows in both cases, then F1 = F2
See calculation below.
The time taken for the light to travel from the camera to someone standing 7 m away is 2.33×10¯⁸ s
Speed is simply defined as the distance travelled per unit time. Mathematically, it is expressed as:
<h3>Speed = distance / time </h3>
With the above formula, we can obtain the time taken for the light to travel from the camera to someone standing 7 m away. This can be obtained as follow:
Distance = 7 m
Speed of light = 3×10⁸ m/s
<h3>Time =?</h3>
Time = Distance / speed
Time = 7 / 3×10⁸
<h3>Time = 2.33×10¯⁸ s</h3>
Therefore, the time taken for the light to travel from the camera to someone standing 7 m away is 2.33×10¯⁸ s
Learn more: brainly.com/question/14988345
The following that describes how outer space, air, and
glass affect the speed of light is that light travels fastest through outer space, it travels somewhat slower though
air, and of these three, it travels the slowest through glass. The answer is
letter B.
Kinetic energy is energy possess by an object due to it motion.
Mass 1; m = 500 Kg Velocity 1; V = 40 m/s
Mass 2; m = 1000 Kg Velocity 2; V = 20 m/s
Formula: K.E = 1/2mv²
For Mass 1 K.E = 1/2(500 Kg)(40 m/s)² = 400, 000 J
For Mass 2 K.E = 1/2(1000 Kg)(20 m/s)² = 200,000 J
This solution shows that a larger velocity will have a greater kinetic energy.
