Answer:
Therefore,
Strength magnetic field at its center, B

Explanation:
Given:
Turn = N = 500
length of solenoid = l = 0.10 m
Current, I = 4.0 A
Radius, r = 0.01 m
To Find:
Strength magnetic field at its center, B = ?
Solution:
If N is the number of turns in the length, the total current through the rectangle is NI. Therefore, Ampere’s law applied to this path gives

Where,
B = Strength of magnetic field
l = Length of solenoid
N = Number of turns
I = Current

Therefore,

Substituting the values we get

Therefore,
Strength magnetic field at its center, B

The most likely pH vale of water before was 7 and after the addition of sodium hydroxide the pH value of water becomes 9. So the correct option among all the options that are given in the question is the first option. Sodium hydroxide is a strong base and so on adding it to neutral water, the solution becomes basic in nature.
The resultant of two vectors acting at a 90 degree angle is determined by the diagonal.
Remembering back to science I believe that temperature is on the Kelvin scale. The corresponding temperature on the Celsius scale would be very close to zero degrees which is the freezing point. The corresponding temperature on the Fahrenheit scale would be 32 degree which again is the freezing point.
Answer:
175 m
Explanation:
In a velocity vs time graph, displacement is the area under the curve.
We can calculate this as area of a trapezoid:
A = ½ (10 m/s + 60 m/s) (5 s)
A = 175 m
Or, we can split the area into a rectangle and a triangle.
A = (10 m/s) (5 s) + ½ (60 m/s − 10 m/s) (5 s)
A = 175 m