Answer:
concentric with the wire
Explanation:
the magnetic field around a long straight, current carrying wire form concentric circles around the wire.
The time taken for the athlete to finish the race is 20 s (Option A)
<h3>What is power? </h3>
Power is simply defined as the rate at which work is done. It can be expressed mathematically as
Power (P) = work (W) / time (t)
But
Work = weight × distance
Therefore,
Power = (weight × distance ) / time
<h3>How to determine the time </h3>
- Mass (m) = 55 Kg
- Acceleration due to gravity (g) = 9.8 m/s²
- Weight = mg = 55 × 9.8 = 539 N
- Power (P) = 5.4 KW = 5.4 × 1000 = 5400 W
- Distance (d) = 200 m
- Time (t) =?
Power = (weight × distance ) / time
5400 = (539 × 200) / t
5400 = 107800 / t
Cross multiply
5400 × t = 107800
Divide both side by 5400
t = 107800 / 5400
t = 20 s
Learn more about power:
brainly.com/question/5684937
#SPJ1
Answer:
A ball moving until gravity pulls it back down to the ground
Explanation:
Answer:
51 dioptre
Explanation:
u = Object distance = 2 cm
v = Image distance = 1 m
f = Focal length
Lens Equation

Power of lens

Power of the eye lens is 51 dioptre.
Answer:
the process or action by which one thing absorbs or is absorbed by another.
Explanation:
bc it spreeds out more the farther away it gets