it would have to be c. the age of the universe and the rate at which the universe is expanding cause it can't just be one of the others only
A watershed model shows the effect/direction/path of rainwater on a certain area. This makes it especially useful to predict which areas are susceptible to floods and droughts. I'd say, based on this, that the correct answer is B. <span>It helps forecast the amount of precipitation at different locations.
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Answer:
a coil rotating in a magnetic field to change its flux
a) 189.2 J
b) 13.5 W
Explanation:
a)
The work done by the force on the package is equal to the scalar product between force and displacement:
where F is the force and d is the displacement.
In this problem, the force is:
We know the initial position:
and the final position:
So, the displacement is the difference between the two positions:
Therefore, the scalar product between force and displacement is:
b)
The average power of the machine is the rate of work done per unit time; it is given by
where
W is the work done
t is the time elapsed
In this problem, we have:
W = 189.2 J (work done)
t = 14.0 - 0 = 14.0 s (time elapsed)
Therefore, the average power of the machine is:
Answer:
1 represents the electron flow
2 represents the load.
3 represents the voltage source.
4 represents the conductive path.
Explanation:
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
Where;
V represents voltage measured in voltage.
I represents current measured in amperes.
R represents resistance measured in ohms.
In an electrical circuit, there are various symbols used to represent different parameters or quantities as shown in the image attached above and these includes;
a. 1 represents the electron flow. This is a representation of the direction of flow of current.
b. 2 represents the load. This is the electrical appliance such as an electronic bulb that is being powered by the electrical circuit.
c. 3 represents the voltage source. This is typically a battery cell that provides the required amount of voltage for the circuit.
d. 4 represents the conductive path. This is the conductor that carries current from one point to another in the circuit such as copper.