Explanation:
It is known that formula for energy per unit area per unit time is as follows.
S = 
= 
E = 
Now, putting the values we will calculate the electric field as follows.
E =
= 
= 1341.03 V/m
Now, we will calculate the average magnetic field as follows.
B = 
= 
= 
T
= 
Thus, we can conclude that the average (rms) value of the magnetic field is .
Current is defined as the rate at which charge flows. The quantity that is current is directly affected by the voltage and the resistance of the circuit, where current is directly proportional to the voltage, and inversely to the resistance.
Among the choices, the correct answer is B.
Answer:
See below ~
Explanation:
Part (a) :
We can say a body is in uniform acceleration if the acceleration of the object remains constant with respect to time throughout its motion.
Part (b) :
We can say a body is non-uniform acceleration if the acceleration of the body varies with respect to time throughout its motion.
U=10 m/s
v=30 m/s
t=6 sec
therefore, a=(v-u)/t
=(30-10)/6
=(10/3) ms^-2
now, displacement=ut+0.5*a*t^2
=60+ 0.5*(10/3)*36
=120 m
And you can solve it in another way:
v^2=u^2+2as
or, s=(v^2-u^2)/2a
=(900-100)/6.6666666.......
=120 m
Power is the ratio between energy and time:
In our problem we have E=76 J and t=3.7 s. Therefore, the power is
