Answer: A
Explanation: STEP BY STEP
Answer:
10000 J or 10 KJ
Explanation:
power = workdone/time taken
400 = workdone/25
workdone = 400 * 25
=10000 J
Smaller cars have less momentum than bigger cars. What’s in motion stays in motion but objects with more momentum (can be from weight or from speed but in this case it’s about weight) tend to stay in motion longer.
Answer:
The magnitude of the resultant of the magnetic field is 
Explanation:
Given that,
Current = 40 A
Magnetic field 
Distance = 22 cm
We need to calculate the magnetic field
Using formula of magnetic field

Where, r = distance
I = current
Put the value into the formula


We need to calculate the magnitude of the resultant of the magnetic field
Using formula of resultant

Put the value into the formula


Hence, The magnitude of the resultant of the magnetic field is 