Answer:
Yes, the number of electrons determines the chemical properties of the atom.
Explanation:
Answer:
v = 37.2 m/s
Explanation:
Given,
The frequency of the wave, f = 3100 Hz
The wavelength of the wave, λ = 0.012 m
The velocity of the propagation of the wave, v = ?
The relationship between the frequency, wavelength, and velocity of a wave is given by the formula
v = f x λ m/s
Substituting the values in the above equation
v = 3100 Hz x 0.012 m
= 37.2 m/s
Hence, the speed of the wave is, v = 37.2 m/s
Answer:
Clockwise movement
Explanation:
Players rotate “clockwise” through each of these positions. Another way to remember it is the player in 1 serves first, the player in 2 serves next, the player in 3 serves third, and so on. The order of rotation is set at the beginning of the game and maintained throughout the game (excepting substitutions).
Hope this helps!! :))
Answer:
The magnetic field through the wire must be changing
Explanation:
According to Faraday's law, the induced emf, ε in a metallic conductor is directly proportional to the rate of change of magnetic flux,Φ through it. This is stated mathematically as ε = dΦ/dt.
Now for the wire, the magnetic flux through it is given by Φ = ABcosθ where A = cross-sectional area of wire, B = magnetic field and θ = angle between A and B.
So, dΦ/dt = dABcosθ/dt
Since A and B are constant,
dΦ/dt = ABdcosθ/dt = -(dθ/dt)ABsinθ
Since dθ/dt implies a change in the angle between A and B, since A is constant, it implies that B must be rotating.
So, <u>for an electric current (or voltage) to be produced in the wire, the magnetic field must be rotating or changing</u>.
Answer:
B
Explanation:
I'm learning about this now actually and it can be a little confusing but it would be endothermic or exothermic. if endothermic the products have less energy than the reactants and if exothermic products have more energy than reactants