TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

The heater in the thermostat control circuit in the cooling mode is active when the ____.


Here is the correct answer that would best complete the given statement above. The heater in the thermostat control circuit in the cooling mode is active when the heat anticipator in the thermostat control circuit is in the heating mode. Hope this is the answer that you are looking for. 

Related Questions

Posted in Physics

The stress force that causes a mass of rock to pull or twist in opposite directions in called ______.

Shearing

The stress force that causes a mass of rock to pull or twist in opposite directions is called shearing.

Hope this helps! :)

Posted in Physics

What property must a refrigerant of a cooling system have? Why?

Refrigeration compressors turn gases into high-pressure and -temperature gases, are also used to maintain a low boiling point.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Explain Why must a cooling system do work to transfer thermal energy?

Although internal energy will not spontaneously flow from a cold region to a hot region, it can be forced to do so by doing work on the system.Refrigerators and heat pumps are examples of heat engines which cause energy to be transferred from a cold area to a hot area. Usually this is done with the aid of a phase change, i.e., a refrigerant liquid is forced to evaporate and extract energy from the cold area. Then it is compressed and forced to condense in the hot area, dumping its heat of vaporization into the hot area. ARE YOU FROM K12?

Posted in Physics

Crystals can have _____ bonds between their atoms. ionic covalent metallic all types of

Answer;

All types of

Crystals can have all types of  bonds between their atoms.

Explanation;

  • Crystals are solid materials which contains atoms, molecules or ions that are arranged in a complex structure forming a crystal lattice.
  • Crystals may have all types of bonds, these includes; ionic bonds, formed as a result of transfer between a metallic bond and a non-metal atom, Covalent bond, formed as a result of sharing electrons between non metal atoms, hydrogen bonds, metallic bonds Van der Waals bonds, etc.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

By using_______you can determine your exact position and altitude on earth?

By using a ''GPS'' you can determine your exact position and altitude on earth.

Posted in Physics

An is_____ produced around a wire when electrical current is in the wire

 A magnetic field is produced around a wire when electrical current is in the wire :)

Posted in Physics

Explain how power is determined within a context of electricity/circuitry

 Power (in watts) is the multiplication of voltage (in volts) and current (in amperes). P = VI 
and since, V = IR 
you also have 
P = I^2 R P = V^2 / R 

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Consider the following geometric solids. A sphere with a ratio of surface area to volume equal to 0.08 m-1. A right circular cylinder with a ratio of surface area to volume equal to 2.1 m-1. What results would you expect if these two models were compared in a diffusion test? A. The rate of diffusion would be the same for the two models. B. The rate of diffusion would be faster for the right cylinder. C. The rate of diffusion would be slower for the right cylinder. D. The rate of diffusion would be faster for the sphere.

Before answering this question, first we have to understand the effect of ratio of surface area to volume on the rate of diffusion.

The rate of diffusion for a body having larger surface area as compared to the ratio of surface area to volume will be more than a body having less surface area. Mathematically it can written as-

                           V∝ R            [ where v is the rate of diffusion and r is the ratio of surface area to volume]

As per the question,the ratio of surface area to volume for a sphere is given 0.08m^{-1}

The surface area to volume ratio for right circular cylinder is given 2.1m^{-1}

Hence, it is obvious that the ratio is more for right circular cylinder.As the rate diffusion is directly proportional to the surface area to volume ratio,hence rate of diffusion will be more for right circular cylinder.

Hence the correct option is B. The rate of diffusion would be faster for the right cylinder.


TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Nuclear power plants in use today rely on ________.

I believe it is fission reactions to generate heat to boiling water

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

1. In the circuit shown below, with each bulb holding a resistance of 100 ohms, how many amps of current are flowing? Express your number as a decimal. (See Figure) 2. Protons have positive charge, neutrons have negative charge, and electrons have no charge. A. True B. False 3. A complete electric circuit includes a voltage source, current, wires, and something to _________ the flow of current.

These are 3 questions and 3 answers.

Question 1.

Answer: I = 0.01 A

Explanation:

a) Data:

i) Type of circuit: series

ii) R₁ = 100 Ω

ii) R₂ = 100 Ω

iii) V = 2 V

iv) I = ?

b) Formulas

i) Equivalent resistance, R = R₁ + R₂

ii) Ohm's law, V = IR

c) Solution

i) R = 100Ω + 100Ω = 200Ω

ii) I = V / R = 2 V / 200Ω = 0.01 A

Question 2)

Answer: False.

Explanation:

The nuclear model of the atom states that the atom is neutral, and consists of a nucleus, which holds the protons and the neutrons, and the electrons which are around the nucleous (in regions called orbintals).

The electrons are negatively charged and the protons are positively charged.

The magnitudes of the charges of both electrons and protons are equal.

Therefore, for the atom be neutral, the neutrons cannot have charge.

Question 3.

Answer: oppose (or resist).

Explanation:

1) The most basic electrical circuit consists of a 1) potential difference (voltage) source, which gives the "impulse" to the charge to flow, 2) the wire, which is the medium through which the charge flows), and 3) a resistor.

The resistor is the element with "resistance" to the flow of charge, this is it resists or oppose the flow of charge.

Some components, like motors, filaments, buzzers, which content or are resistors per se, transform the current (flow of charge) in other useful forms of energy (motion, light, heat, sound).

The resistor meets Ohm's law which states R = V / I, at constant temperature.

Posted in Physics

Work is equal to _____. force times size velocity times force distance times force

Answer : The correct option is, distance times force

Explanation :

Work : It is defined as the force acting on an object to cause a displacement. Or we can defined as the work is equal to the product of the force of an object and displacement of an object.

The formula of the work is written as,

W=F\times d

where,

W = work done

F = force applied on an object

d = displacement of an object

Hence, the work is equal to distance times force.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

All waves consist of a continuous series of _____. pulses circles compressions rarefactions

Answer: The correct answer is pulses.

Explanation:

Wave is a disturbance which carries energy from one particle to another. Wave is a continuous disturbance.

Pulse is a single disturbance. It travels through one point to another.

Sound wave consists of rarefaction and compression. It need medium to travel.

In the circular wave, the particles move both parallel and perpendicular to the motion of the wave.

Therefore, all waves consist of a continuous series of the pulses.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

To calculate the velocity of an object, the _________ of the position vs time graph should be calculated.

By definition we have to:

 v = \frac{dr}{dt}

Where,

dr / dt: rate of change of the position of an object with respect to time

Therefore, we know that in a position graph with respect to time, both variables are proportional.

The proportionality constant is the speed of the object.

Mathematically, this constant represents the slope of the line.

Answer:

To calculate the velocity of an object, the slope of the position vs. time graph should be calculated.

Posted in Physics

_________ acceleration occurs when an object speeds up.

Positive acceleration occurs when an object speeds up.

Explanation:

Acceleration is the rate of change in velocity per unit time:

a=\frac{\Delta v}{\Delta t}

where \Delta v is the change in velocity while \Delta t is the time interval. From the formula, we can understand that when \Delta v is positive, so when the object is speeding up, the acceleration is positive; on the contrary, when \Delta v is negative (so, when the object is slowing down), the acceleration is negative.

Posted in Physics

Producing a current by moving a wire through a magnetic field is called ____ induction

The correct answer to the question is : Electromagnetic induction.

EXPLANATION :

Before going to answer this question, first we have to understand electromagnetic induction.

The electromagnetic induction is defined as the process of production of electric current in a coil due to the change of magnetic flux associated with it.

As per the question, the current is produced in a wire when it is allowed to move through magnetic field. The magnetic flux is changed due to the motion of the wire in the magnetic field, which in turn produces induced emf in the wire.

Hence, the correct answer is electromagnetic induction.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

An explosion is an example of _____. fusion instant oxidation detonation combustion

The best and most correct answer among the choices provided by your question is the third choice.

An explosion is an example of a detonation.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Posted in Physics

The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction _____. -keep the moon and sun in orbit -keep people grounded -helped to create and retain Earth's atmosphere -create and retain internal heat

I believe the correct answer from the choices listed above is the first option. The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction keep the moon and sun in orbit. Hope this answers the question.

Posted in Physics

The mole fraction of oxygen in dry air near sea level is 0.20948. The concentration of oxygen is __________ molecules per liter, assuming an atmospheric pressure of 739 torr and a temperature of 29.5°C A) 6.23 B) 0.00819 C) 4.93 × 1021 D) 3.75 × 1024 E) 5.07 × 1022

N sub air = ( P ) ( V ) / ( R ) ( T ) 

n sub air = ( 739 / 760 ) ( 1.000 ) / ( 0.08205 ) ( 28.5 + 273.2 ) 

n sub air = 0.03928 mol per L 

R = universal gas constant = 0.08205 atm - L per mol - deg K 

Find moles O2 per liter : 
--------------------------------------... 

n sub O2 = ( y sub O2 ) ( n sub air ) 

n sub O2 = ( 0.20948 ) ( 0.03928 ) 

n sub O2 = 0.008228 moles O2 per L 

Now apply Avogadro's Number to get the O2 molecules per liter : 
--------------------------------------... 

N sub O2 = ( n sub O2 ) ( N sub AVO ) 

N sub O2 = ( 0.008228 ) ( 6.022 x 10^23 ) 

N sub O2 = 4.96 x 10^21 O2 molecules per liter

It's C.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements

Posted in Physics

Bohr found experimental evidence for his atomic model by studying _____. a) the electron cloud B) line spectra c) quarks d) atomic mass

Answer:

b)  line spectra

Explanation:

 The model of the atom as given by Rutherford was modified by Bohr. According to Rutherford's model, the electrons that orbit the nucleus electromagnetic radiation. As a result they lose energy and had to collapse into the nucleus, thereby making the atom unstable.

Bohr corrected that by proving that electrons revolve around the nucleus only in certain fixed orbits, with a specific energy. They can jump from one to another and lose or gain energy by emitting or absorbing energy in that process.

Electron cloud is the region where the electrons are most likely to occur. This was proposed by Schrodinger.

Posted in Physics

Astronomers who discovered quasars found that they show of their spectral lines and are thus probably much ________ than nearby galaxies.

Astronomers who discovered quasars found that they show of their spectral lines and are thus probably much "Radio Waves" than nearby galaxies.

Hope this helps!

Posted in Physics

A layer of material that helps block the transfer of heat between the air inside and outside a building is called a. an active solar system. b. a solar cell. c. a heat exchanger. d. insulation.

Answer: Option (d) is the correct answer.

Explanation:

A layer of material that helps block the transfer of heat between the air inside and outside a building is called insulation.

As insulators are the conductors which do not allow the flow of charges easily or we can say that insulators resist the flow of charges.

Whereas an active solar system, a solar cell, and a heat exchanger are all good sources of transfer of heat as all these easily allow the flow of charges, that is why, heat gets transferred heat between the air inside and outside a building.

TopAcademicTutors.Com

Expert Assignment Help for students who have pending assignments.

For 10$ a page, you can get your written essay.

Tell us your requirements