Answer:
U = – 0.12J
Explanation:
Given N = 10 turns, I = 5A, r = 5×10-²m
B^ = 0.05 T iˆ+ 0.3 T kˆ
Magnitude of the magnetic field vector B = √(0.05²+0.3²) = 0.304T
Area = πr² = π(5×10-²)² = 7.85×10-³m²
Magnetic moment μ = NIA
μ = 10×5×7.85×10-³ = 0.3925Am²
U = -μ•B = –0.3925×0.304 = –0.12J
The sign is negative because the magnetic moment is aligned with the magnetic field.
Water vapor clouds that are breaking out of Europe’s surface, water is the basis of life so this would support the idea that there is life
You cant skip nothing. All the lessons are important! Sorry about you free time :/
Answer:
Explanation:
Vectorially speaking, torque is the cross product between force and distance from fulcrum. Its magnitude is equal to the following expression:
Let assume that force is perpendicular to the distance from the fulcrum. So, the torque needed to turn the bolt is:
The subscript for nitrogen in hydrazine, N2H4 is 2.
In chemistry, when writing the chemical formula of chemical compounds, subscripts refers to the numerical numbers that are sometimes put at the base of some chemical symbols. The subscripts are used to indicate the number of atoms that are present in each element. For example, in hydrazine, the subscript 2 indicates that two atoms of nitrogen are present, while the subscript 4 indicates that four atoms of hydrogen are presents.
