An air conditioner has a power rating of 3000 W and is used daily. Its electrical
consumption is 120 kWh for one week.
(a) Calculate, in hours, the average duration for which the air conditioner is used daily​

Answer:

Explanation:

We call it “a day”, beucase the day is over.

Answer:

Hello, I'm here to help :D

The Explanation:

The original phrase was call it half a day, first recorded in 1838, which reffered to leaving one's place of employment before the work day was over.

The first recorded use of call it a day was in 1919, and of call it a night in 1938

Bye! - Lilo

Answer:

D, I think.

Explanation:

I had a quiz in Plate Tectonics and there was 2 questions that are related to this, but not the exact question.

Which material rises from cracks in oceanic crust

-molten rock

Which is the first step in the seafloor spreading process?

-a crack forms in oceanic crust.

those are all right btw, so you can decide if the answer I told you is right or not.

Answer:

D.

Explanation:

Give the other person brainliest he has a good explanation.

Answer:

d) When the diaphragm pushes upward, it decreases the volume of the lungs, pushing air out.

Explanation:

the relaxed diaphragm muscle is dome-shaped, the contracted muscle is horizontal.

Answer:

b

Explanation:

hope its help po #carry onlearning

Answer:

An accelerometer is a tool that measures proper acceleration.[1] Proper acceleration is the acceleration (the rate of change of velocity) of a body in its own instantaneous rest frame;[2] this is different from coordinate acceleration, which is acceleration in a fixed coordinate system. For example, an accelerometer at rest on the surface of the Earth will measure an acceleration due to Earth's gravity, straight upwards[3] (by definition) of g ≈ 9.81 m/s2. By contrast, accelerometers in free fall (falling toward the center of the Earth at a rate of about 9.81 m/s2) will measure zero.

Accelerometers have many uses in industry and science. Highly sensitive accelerometers are used in inertial navigation systems for aircraft and missiles. Vibration in rotating machines is monitored by accelerometers. They are used in tablet computers and digital cameras so that images on screens are always displayed upright. In unmanned aerial vehicles, accelerometers help to stabilise flight.

When two or more accelerometers are coordinated with one another, they can measure differences in proper acceleration, particularly gravity, over their separation in space—that is, the gradient of the gravitational field. Gravity gradiometry is useful because absolute gravity is a weak effect and depends on the local density of the Earth, which is quite variable.

Single- and multi-axis accelerometers can detect both the magnitude and the direction of the proper acceleration, as a vector quantity, and can be used to sense orientation (because the direction of weight changes), coordinate acceleration, vibration, shock, and falling in a resistive medium (a case in which the proper acceleration changes, increasing from zero). Micromachined microelectromechanical systems (MEMS) accelerometers are increasingly present in portable electronic devices and video-game controllers, to detect changes in the positions of these devices.

Explanation:

hope this helps !!!!

Answer:

C

Explanation: ITS C!!! HOPEFULLY, THIS HELPS!!! :)

"Ice and water in glass are at the same temperature. What other similarities or differences are there between the water and the ice?  All of the particles will have the same potential energy, but the particles in the water will have more kinetic energy."

Answer: C

Explanation: if wrong let me know pls

Answer:

First Prediction: I predict that in the Southern Hemisphere, the needle of the compass will point south rather than north as the magnetic pull from the southern pole is greater than the northern pole there.

Second Prediction: I predict that moving a magnet around a compass will cause the needle to point to the closer magnet rather than a pole of the earth as the magnetic pull of the magnet is stronger than the magnetic pull of the closest pole of the Earth.

Third Prediction: I predict that the size of Earth’s magnetic pull is on all of the Earth. This is because the compass will— as long as it is not impacted by another magnetic force— always point toward the nearest magnetic pole. Furthermore, I predict that Earth’s North and South Poles are at the top and the bottom of the Earth, as the compass will always point north or south.

Answer:

conductor:-

A substance that allows heat to pass through them is known as a conductor.

Example:-All the metals, water, etc.

Insulator:-

A substance that does not allows heat to pass through them is known as an insulator.

Example:-All the nonmetals etc.

Explanation:

Answer:

The conclusion is incorrect, according to the text.

Explanation:

the small small that is 1 kilogram must go more fast,because begin with more kinetic energy, and can roll more faster by it's light weight, the 3 kilogram ball must be more late for roll down, because have more potential energy than kenetic energy, so in conclusion the light ball go more fast and have more kenetic energy that the heavy ball.

Answer: 1. Increasing the concentrations of reactants in a chemical reaction would affect a reaction positively by increasing the number of collisions within a particular period which in turn increases the rate of reaction.

2. The molecules gains energy,which enable them to move faster and collide with the right energy for a reaction to take place.

3. The average kinetic motion of molecules in a solution can be measured by measuring the temperature. Temperature is a measure of the average kinetic energy of molecules in a solution.

Explanation: A experts answer

Answer: According to the graph, we can actually say that: The global surface temperature average was significantly lower during the period from 1860 to 2000.

What is temperature?

Temperature is actually known as the physical quantity which is usually used to express the degree of hotness and coldness of a matter. It is used to show the thermal energy that matter possesses.

We can see from the graph that the global surface temperature average was significantly lower during the period from 1860 to 2000.

Explanation:

The graph actually demonstrates that the average worldwide surface temperature was substantially lower between 1860 and 2000.

In reality, the temperature is a physical measurement that is typically used to represent how hot or cold a substance is. The thermal energy that matter possesses is demonstrated by using it.

The main cause of Earth's warming is the presence of additional greenhouse gases in our atmosphere. Methane and other greenhouse gases like carbon dioxide (CO2) trap heat from the Sun in the Earth's atmosphere. It is typical for our atmosphere to have certain greenhouse gases.

The graph shows that between 1860 and 2000, the average worldwide surface temperature was much lower.

Thus, the graph actually shows that between 1860 and 2000, the average global surface temperature was significantly lower.

To learn more about global temperature, refer to the link:

https://brainly.com/question/10283285

#SPJ2

As resistance is increased, the current flow will decrease. Therefore, as the resistance is reduced, the current flow will increase.

Answer:

3. How do we measure the average kinetic motion of molecules in a solution?Hypothesis Before you begin your lab, write a hypothesis that reflects how you think temperature of the water will affect the reaction rates. Record your hypothesis as an “if, then” statement.VariablesThis experiment tests how the tempe

Explanation:

Answer: Look at the PDF I attached. Hope this helps!

Answer:

X-precipitation

Y(plants)-photosynthesis

Y(animals)-respiration

W-evaporation

Explanation:

Answer:

water chichet and flea

Explanation:

i dont know how to spell sorry

Answer:

a physical change in a substance doesn't actually change what the substance is. it remains the same. in a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

Explanation:

Answer:

The difference between chemical and physical changes is that a chemical change happens whenever there is a change in the molecule of a substance. Chemical changes always make a new substance and could never go back to how it was before. In a chemical change, the energy causes the atoms to break free of their molecules and form different molecules.

A physical change never forms a new substance, for example, if you cut an apple in half it will still be an apple because it did not form a new substance or it does not have mold or anything on it that will not be able to change back to what it was before. The type of physical changes is texture, shape, temperature, and a change in the state of matter.

So the difference between them is that a chemical change can never go to what it was before but a physical change can.

Answer:

The last one

Explanation:

A instinct is a sudden trigger than dont be needed to improve on.

Answer:

is this a physics questions???

and i didnt get u btw

Answer:

He calculated his average speed.

Explanation:

Waldo calculated an average of his speed in 2 hours rather than his speed whilst driving which means instead of doing 50/1 hour = 50 mph, he did 50/2hours which is how he got 25 mph. Hope this helps!

Answer:

you are the one who gives meaning to your life, do what u want to do. try new things and just enjoy the good things that you alreadyknow u like. you shouldn't look at life as a competition or as a task that needs something to be done, just do whatever u want

Answer:

YES

Explanation:

The reason for this particular growth pattern followed by bananas is that the very first bananas were grown in a rain forest. Rain forests experience extremely less sunlight. Hence, to balance itself, the plant started growing towards the sunlight. This helped the plants to receive maximum possible sunlight.