Hi there!
We can use the following equation to calculate the magnetic field inside of a solenoid:
B = Magnetic Field Strength (T)
n = number of loops PER LENGTH
i = current through solenoid (A)
μ₀ = Permeability of free space (4π × 10⁻⁷ Tm/A)
First, we can solve for 'n' given 'N' (total # of loops) and L (length of solenoid).
Now, we can calculate the magnetic field:
Answer:
You could claim that Pluto is a planet as it rotates around our sun.
Explanation:
Hope that helps :)
A) 17.9 cm
We have:
is the focal length of the mirror (for concave mirror, the focal length is positive)
is the distance between the object and the mirror
is the distance between the image and the mirror
We can then use the mirror equation to find q:
B) -5.0 cm
The height of the image can be determined by using the magnification equation:
where
is the heigth of the image
is the height of the object
Substituting and re-arranging the formula, we find
And the negative sign means the image is inverted.
Answer:
490N
Explanation:
According Newton's second law!
\sum Force = mass × acceleration
Fm - Ff = ma
Fm is the moving force
Ff s the frictional force = 100N
mass = 65kg
acceleration = 6m/s²
Required
Moving force Fm
Substitute the given force into thr expression and get Fm
Fm -100 = 65(6)
Fm -100 = 390
Fm = 390+100
Fm = 490N
Hence the force that will cause two cart to move is 490N