The force of gravity depends on what
1 answer:
You might be interested in
Answer:
C) 90 degrees
Explanation:
If we could have an imaginative illustration about what the question is all about.
We could think of the velocity of the river (V_r cosθ) as a horizontal component and the velocity of the boat (V_b sinθ) as the vertical component.
So the velocity of the boat V_b = 2.2 m/s; &
the velocity of the river V_r = 1.1 m/s
∴
The minimum time (which is the shortest time) required for the boat to cross the river is θ = 90°
the time require is:
t = 43.18 sec
unpaired electrons,are required each with a magnetic moment of 9.27 ×10⁻²⁴A.m² , to participate .
- Magnetic moment, also called magnetic dipole moment, is a measure of the tendency of an object to align with a magnetic field.
- Magnetic moment is a vector quantity. Objects tend to be placed so that their magnetic moment vectors are parallel to the lines of magnetic force.
- The direction of the magnetic moment points from the south pole of the magnet to the north pole. The magnetic field produced by a magnet is directly proportional to its magnetic moment.
"Magnetic moment is defined as the magnetic strength and orientation of a magnet or other object that produces a magnetic field."
It is given that magnetic moment of the Earth is approximately 8.00 ×10²²A.m² .
Number of unpaired is found by dividing the magnetic moment of the Earth to the given magnetic moment of 9.27 ×10⁻²⁴A.m²
Each iron atom has two unpaired electrons, so the number of iron atoms required is electrons.
Learn more about here :
#SPJ4