Answer:
The emf, electric field and the current in the wire are 10 V, 3.57 V/m and 1.43 A.
Explanation:
Given that,
Resistance = 7 ohms
Length = 2.8 m
Time t =0.2
We need to calculate the change in magnetic flux
Using formula of induced emf
Put the value into the formula
We need to calculate the electric field in the wire
Using formula of electric field
We need to calculate the current in the wire,
Using formula of ohm's law
Put the value into the formula
Hence, The emf, electric field and the current in the wire are 10 V, 3.57 V/m and 1.43 A.
This is psychology and not physics by the way , it occurs from direct instruction or observation <span />
The solution would be like
this for this specific problem:
<span>v = ? </span><span>
<span>u = 0.0 m/s </span>
<span>a = 9.8 m/s^2 </span>
<span>s = 56.1 m </span></span>
<span>v^2 = (0.0 m/s)^2 + [2 *
(9.8 m/s^2) * (56 m) ] </span><span>
<span>v^2 = 2 * (9.8 m/s^2) * (56 m) </span>
<span>v^2 = 1,097.6 m^2/s^2 </span>
<span>v = SQRT {1,097.6 m^2/s^2 } </span></span>
v = 33.1 m/s
<span>v = u + at </span>
<span>(v - u) / a = t </span>
[ (33.1 m/s) - (0.0 m/s)
] / (9.8 m/s^2) = 3.38 seconds
If the pigeon is 56.0 m below the initial position of the
falcon, it will take 3.38 seconds for the falcon to reach the pigeon. I am
hoping that this answer has satisfied your query and it will be able to help
you in your endeavor, and if you would like, feel free to ask another question.
Basically its just an air like fluid with chemicals.... just like air it just goes as it pleases and fills space
Answer:
the speed of the tip of a blade 10 s after the fan is turned off is 16.889 m/s.
Explanation:
Given;
diameter of the ceiling fan, d = 90 cm = 0.9 m
angular speed of the fan, ω = 64 rpm
time taken for the fan to stop, t = 28 s
The distance traveled by the ceiling fan when it comes to a stop is calculated as;
The speed of the tip of a blade 10 s after the fan is turned off is calculated as;
Therefore, the speed of the tip of a blade 10 s after the fan is turned off is 16.889 m/s.
