Part (a):
1- Since the resistors are in series, therefore, the total resistance is the summation of the two resistors.
Therefore:
Rtotal = R1 + R2 = 3.11 + 6.15 = 9.26 ohm
2- Since the two resistors are in series, therefore, the current flowing in both is the same. We will use ohm's law to get the current as follows:
V = I*R
V is the voltage of the battery = 24 v
I is the current we want to get
R is the total resistance = 9.26 ohm
Therefore:
24 = 9.26*I
I = 24 / 9.26
I = 2.59 ampere
Part (b):
To get the voltage across the second resistor, we will again use Ohm's law as follows:
V = I*R
V is the voltage we want to get
I is the current in the second resistor = 2.59 ampere
R is the value of the second resistor = 6.15 ohm
Therefore:
V = I*R
V = 2.59 * 6.15
V = 15.9285 volts
Hope this helps :)
Answer:
false.
Explanation:
If a object is at rest it does not means that no force is acting on the object.
There can be a scenario that all to forces acting on the object balance each other and the net force required for motion is zero.
So, the given statement is false.
Water bottle and a paper towel role
Let's calculate the total charge of M=4.8 g=0.0048 kg of protons.
Each proton has a charge of

, and a mass of

. So, the number of protons is

And so the total charge of these protons is

So, the neutralize this charge, we must have

electrons such that their total charge is

Since the charge of each electron is

, the number of electrons needed is

which is the same as the number of protons (because proton and electron have same charge magnitude). Since the mass of a single electron is

, the total mass of electrons should be
When a gas is inside the tube, the individual air molecules travel the length of the tube.
<h3>What is molecules?</h3>
The individual particle of a gas element moving randomly inside the element structure.
When the gas contained in a container, the molecules move randomly inside it. According to the kinetic theory of gases, molecules travel the mean distance. The air molecules vibrates horizontally parallel to the length of the tube.
In an open tube, air molecules are distant from each other. So, they can travel the length of the tube.
Thus, individual air molecules travel the length of the tube.
Learn more about molecules.
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