PHYSICS HIGH SCHOOL

What does the term heat death refer to?a. a danger of increasing entropy
b. the hot and fiery end to the universe
c. the unavailability of energy to do work
d. a theoretical violation of the second law of thermodynamics

Answers

Answer 1
Answer: The term heat death refers to a danger of increasing entropy. The correct option among all the options that are given in the question is the first option or option "a". This theory stems from the second law of thermodynamics and it states that entropy tends to increase in any isolated system. I hope the answer helps you.

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Computers have become a familiar ___ of communication, connecting people around the world.a. mediation
b. proponent
c. medium
d. exposition

Answers

they're a medium (c) of communication

A. mediation is what you so when you want to bring the sides of conflict together

b. is a person who is advocating something

d. is a presentation of some opinion or facts.

A 2.50 × 105 W motor is used for 26.4 s to pull a boat straight toward shore. How far does the boat move toward shore if a force of 4.20 × 104 N is applied by the motor?

Answers

The power of the motor is
2.50x10⁵ W
or 
2.50x10⁵ N m/s

The time it takes to pull the boat is
26.4 s

The force applied is
4.20x10⁴ N

The distance traveled by the boat is
2.50x10⁵ N m /s (26.4 s) / (4.20x10⁴ N)
 = 157.14 m

Answer:

157 m

Explanation:

right on ed2020

Short answerYou are provided a 20-mL solution of methanol and water.
a. Name the technique that you would use to separate and identify the components of the solution.
b. Provide specific details of the method used.
c. State the advantage of the method you choose.

Answers

a. you can separate the components through chromatographic techniques (GC or HPLC). The advatage of using a high-tech chromatography equipment is the simultaneous separation - contents analysis. 

b. chromatography is an affinity based separation which means using specific adsorbents, it can separate the component with a higher affinity to the adsorbents.

c. the advantage of which is the precision as well as the simultaneous separation and contents analysis.

When object A collides with object B and bounces back, its final momentum is ____ its initial momentum.

Answers

There's no way to say anything at all about object-A.
The only thing we know is that the SUM of the momenta
of object-A AND object-B is the same after the encounter
as it was before.

Most of the circuits in your home area. parallel circuits.
b. switch circuits.
c. series circuits.
d. reversible circuits.

Answers

The correct answer to the question is: A) Parallel circuits.

EXPLANATION:

There are normally two types connection of circuit elements which are preferred for connection of electrical appliances.

Most of the circuits in home are connected to each other in a parallel way.

We know that the potential remains constant at every circuit elements for parallel connection. The potential drop across each circuit element will be different for series connection.

Due to the parallel connection, each circuit elements can be switched on or off separately.

Hence, most of the electrical circuits in home are connected in parallel way.

Option (a) is correct. The most of the circuits at home are the parallel circuits.

Further Explanation:

The normal wiring in the electrical appliances used in the household circuits are either done in series circuit or in a parallel circuit.

A series circuit is a circuit in which all the alliances are connected to one another in a linear manner. In series circuit, the current flowing through all the elements in a circuit remains the same but the voltage drop changes.

A parallel circuit is a circuit in which all the appliances are connected across the voltage source and therefore, the voltage drop across all the appliances remains the same.

The switching circuit and the reversible circuits are the circuits which make use of the several sensors and electronic adapters to control the circuit.

The parallel circuits are more advantageous over the other circuits because if any fault occurs in any one of the instrument or appliance, the whole circuit is not affected due to this. The rest of the circuit continues to work without any issue.

Thus, Option (a) is correct. The most of the circuits at home are the parallel circuits.

Learn More:

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3. A small bulb has a resistance of 2 ohm when cold brainly.com/question/10421964

Answer Details:

Grade: High School

Subject: Physics

Chapter: Electrical circuits

Keywords:

Parallel circuits, switch circuits, reversible circuits, series circuit, most of the circuits, household circuit, appliances, fault, not affected, current remains same, voltage drop across.

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Answers

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