As we know that induced EMF is given by rate of change in magnetic flux
so here we can say
here we know that
so here we can say
now by relation of EMF and electric field we can say
now plug in all values
r = 2.5 cm
f = 17 Hz
so electric field is given as E = 0.085 N/C
Answer:
4 m/s.
Explanation:
The following data were obtained from the question:
Distance travalled (d) = 20 m
Time (t) = 5 secs
Speed (S) =?
Speed is defined as the rate of change of distance moved with time. Mathematically, it is expressed as:
Speed (S) = Distance (d) /time (t)
S = d/t
With the above formula, we can easily calculate the speed of the individual as follow:
Distance travalled (d) = 20 m
Time (t) = 5 secs
Speed (S) =?
S = d/t
S = 20/5
S = 4 m/s
Therefore, the speed of the individual is 4 m/s
Force on left crate, right crate and truck we need to draw here
First we will write the equation for left crate
Now similarly for right crate
now for truck
Now we know that F = 200 N
now add all three equation
now we will find all tension using this value of acceleration
The answer is: Salt! :)
Have a great day!