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zhenek [66]
3 years ago
7

There is a 0.40-A current in resistor X when it is connected to a 2.0-V battery. A 0.25-A current is in a second resistor, Y, wh

en it is connected to a 4-V battery. There is a 0.50-A current in a third resistor, Z, when it is connected to a 5.0-V battery. Find the resistor that has the maximum resistance and the resistor that has the least resistance.
Physics
1 answer:
Katyanochek1 [597]3 years ago
5 0
We can find the value of the resistance R of each resistor by using Ohm's law:
V=IR
where
V is the potential difference across the resistor
I is the current flowing through it

First resistor:
R_X =  \frac{V}{I}= \frac{2.0 V}{0.40 A}=5 \Omega
Second resistor:
R_Y =  \frac{V}{I}= \frac{4 V}{0.25 A}=16 \Omega
Third resistor:
R_Z =  \frac{V}{I}= \frac{5.0 V}{0.50 A}=10 \Omega

So, the resistor with the maximum resistance is the second one (Y), while the resistor with the least resistance is the first one (X)
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What are some examples of non-inertial reference frames?
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Answer:

Examples of non-inertial reference frames

One clearcut example of an inertial reference frame is an isolated spaceship, far, far away from the Earth, the Sun, the Milky Way Galaxy, and all other massive objects. Fred places a blue ball into a claw at the left end of the ship, and red ball into a claw at the right end of the ship.

Explanation:

Let us say that you are in a car at a stop light. The car is standing still. The light turns green, and the car accelerates forward. While undergoing this acceleration, the car is a non-inertial frame of reference.

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2 years ago
When a football is kicked, the action and reaction forces do NOT cancel each other out because
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Answer:

C

Explanation:

The kicker exerts more force of the football which is why the football moves when its kicked.

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3 years ago
Ethanethiol (; also called ethyl mercaptan) is commonly added to natural gas to provide the ""rotten egg"" smell of a gas leak.
Tju [1.3M]

Answer:

S = 27500J / 308.15molK

Explanation:

Entropy measures the degree of disorganization of a system. It is measured in the entropy change that is equal to the heat exchanged divided by the temperature at which the process occurs.

S2-S1 = Q / T

S = entropy

Q = heat = 27.5 kJ / mol * 1000J / 1KJ = 27500J / mol

T = temperature = 35 + 273.15 = 308.15K

units = J / molK

S = 27500J / 308.15molK

3 0
3 years ago
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The
uysha [10]

Answer:

f = 692 N

Explanation:

given data:

f =800N

a =1.2 m s^{2}

m= 90 kg

from newton's second law

net force F_{net} =\sum F = F_1 +F_2 +..... = ma

therefore we have from above equationF_{net} = F -f = ma

ma =F - f

putting all value to get force of friction

1.2*90 = 800 - f

f = 692 N

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3 years ago
Assume that the home construction industry is perfectly competitive and in long-run competitive equilibrium. It follows that: A.
olga nikolaevna [1]

Answer:

B. Marginal cost equals long-run average total cost.

Explanation:

The zero profit condition implies that entry continues until all firms are producing at minimum long run average total cost. Since the marginal cost curve cuts the long run average total cost curve at its minimum point, marginal cost and long run average total cost must be equal in long run equilibrium.

4 0
3 years ago
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