what is illuminance​

Answers

Answer 1

Answer:

The amount of luminous flux per unit area

Explanation:


Related Questions

Why do some people in the music industry still prefer analog music storage? Analog introduces background noise to the original recording. Analog devices record the music in its original form. It takes less time to record the music through analog devices. The equipment is lighter and less bulky for recording analog signals.

Answers

The people in the music industry still prefer analog music storage. Because analog devices record the music in its original form.

What is analog device storage?

There are advantages to both digital and analog music. Even today, music connoisseurs debate the subject incessantly.

Understanding both recording methods can help you appreciate music more by providing you with a better understanding of playback depth. Analog and digital songs have different effects on playback,

But both can identify the various aspects of a song. In honor of music as a whole, we're diving into both and bringing out the best of each.

Hence people in the music industry still prefer analog music storage. Because analog devices record the music in its original form.

To learn more about analog device storage refer to the link;

https://brainly.com/question/11599772

Answer:

B

Explanation:

what do you mean by electric wind? ​

Answers

Explanation:

The electric field is normal to any conductor charged surface, then any negatively charged sharp end will concentrate the electrons in order to achieve that (being rejected by the others on main body), that also implies a huge voltage drop nearby the edge, meaning high electric field in the direction aimed by the sharp end, that field becomes strong enough (when charged by electrostatic machines) to propel electrons out causing air movement in that direction (a flame will bend because of that wind).

Ion wind, ionic wind, coronal wind or electric wind is the airflow induced by electrostatic forces linked to corona discharge arising at the tips of some sharp conductors (such as points or blades) subjected to high voltage relative to ground. Ion wind is an electrohydrodynamic phenomenon

Hi, by the ways happy Halloween , I hope this really helps

50 points for correct answer.​

Answers

C is the correct answer for this question.


A drag racer starts from rest and accelerates at 10 m/s squared for the
entire distance for 5.4 seconds. What is the velocity of the car at the end
of the race?

Answers

Answer:

54 [tex]\frac{m}{s}[/tex]

Explanation:

[tex]v=u+at[/tex]

where [tex]u=[/tex]initial velocity

[tex]v=0+(10\frac{m}{s^{2} } )[/tex]×[tex](5.4s)[/tex]

[tex]v=54\frac{m}{s}[/tex]

Which characteristic describes an organism of Kingdom Animalia when compared to plants?
A) It is able to move on its own.
B) Sunlight is used to make its own food.
C) Water is not needed for survival.
D) It does not need sunlight to survive.

Answers

Answer:

A

Explanation:

Because plants cant move and animals can.

The characteristic which describes an organism of kingdom Animalia is able to move on its own when compared to the plants kingdom. Thus, the correct option is A.

What are the characteristics of Animalia Kingdom?

Animals are the multicellular, eukaryotic organisms in the biological kingdom Animalia. Animals are the organisms which consume organic material, breathe oxygen gas, are able to move on their own, can reproduce sexually and produce organisms which contain genetic information which is recombination of both the parents, and these organisms go through an ontogenetic stage in which their body consists of a hollow sphere of the cells, the blastula, during the embryonic development of organisms.

Organisms belong to Animal kingdom show some characteristics which are not found in the organisms which belong to the plant kingdom including movement. Animals can move on their own while plants cannot.

Therefore, the correct option is A.

Learn more about Kingdom Animalia here:

https://brainly.com/question/9031447

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One of the most important tasks of the small intestine is
the:
a. absorption of nutrients
b. collection of water
C. excretion of urine
d. repair of blood cells

Answers

A, The small intestine or a small bowel is an organ in the gastrointestinal tract where most of the end absorption of nutrients and minerals from food takes place.

What is the difference between propagation speed and the frequency of a wave? Does one or both affect wavelength? It so, how?

Answers


In Washington state, 32 of the 39 counties are led by a board with three elected members who serve as the county's legislative body and
perform executive functions.
What form of government does this describe?
OA home rule system
OB. council-administrator system
OC commission system
OD. council-elected executive system
The frequency is the number of wave that pass a point per unit time. The wavelength is directly proportional to the wave speed and inversely proportional to the frequency.

A 2.0 Kg box is being pulled up a ramp with a force of 25.0 Newtons. The ramp has an incline of 30 degrees. If the coefficient of friction is 0.752, find the acceleration of the block up the ramp. You may round your answer to the nearest tenth where necessary!!!

Answers

Answer:

The acceleration of the block is 1.21 m/s².

Explanation:

Given that,

Mass = 2.0 kg

Force = 25.0 n

Angle = 30°

Coefficient of friction = 0.752

We need to calculate the acceleration of the block

Using balance equation

[tex]F-(mg\sin\theta+\mu mg\cos\theta)=ma[/tex]

Put the value into the formula

[tex]25-(2.0\times9.8\sin30+0.752\times2.0\times9.8\cos30)=2.0a[/tex]

[tex]a=\dfrac{25-(2.0\times9.8\sin30+0.752\times2.0\times9.8\cos30)}{2.0}[/tex]

[tex]a=1.21\ m/s^{2}[/tex]

Hence, The acceleration of the block is 1.21 m/s².

A 1500 kg car is moving at 15m/s what is the impulse experienced by the car

*Pls put the formula of how you did it too*

Answers

Answer:

22500 Ns

Explanation:

Given,

Mass ( m ) = 1500 kg

Velocity ( v ) = 15 m/s

Formula : -

Impulse = mv

Impulse

= 1500 x 15

= 22500 Ns

Therefore,

22500 Ns is the impulse experienced by the car.

Note : -

Ns is the unit of impulse.

Impulse= mass x velocity so answer is 22500

Jalen is sliding around on his kitchen floor in his
socks going 3m/s. He gets to the living room, and
when he slides onto the carpet, his velocity slows
down to 1m/s. He also notices that his feet feel
warmer. Why did this happen? Explain your
answer.

Answers

Answer:

his feet feel warmer because of friction. when friction takes place then an object will warm up because friction is a universal law that always takes place. if you rub your hands together, you also experience the heat of frictional I hope that helped.

________ is a force which is exerted by earth on the objects *

Answers

Answer:

force of gravity

Explanation:

i hope this helps and learn well

What is the mass of an object with a velocity of 24.1 m/s and a momentum of 28.3 kg m/s?​

Answers

Answer:

1.17427...kg

Explanation:

Assumptions: no friction, no air resistance, no internal resistance, and it is 1 dimensional travel for velocity.

p=mv, where p is momentum, m is mass, and v is velocity

28.3=24.1(m)

divide both sides by 24.1

you get 1.174273859

Answer:

[tex]\boxed {\tt 1.17427386 \ kilograms}[/tex]

Explanation:

The formula for momentum is:

[tex]p=mv[/tex]

From this formula, we know that mass can be found by dividing the momentum by the velocity.

[tex]\frac{p}{v}=m[/tex]

The momentum is 28.3 kg m/s and the velocity is 24.1 m/s

[tex]p=28.3 \ kg \ m/s \\v=24.1 \ m/s[/tex]

[tex]\frac{28.3 \ kg \ m/s }{24.1 \ m/s} =m[/tex]

Divide. The meters per second or "m/s" will cancel each other out.

[tex]\frac{28.3 \ kg}{24.1} =m[/tex]

[tex]1.17427386 \ kg=m[/tex]

The mass of the object is 1.17427386 kilograms.

help plzz i nned to do this

Answers

Hello!

Answer:

The answer is D

Wish you luck!

If a train travels 300m in 25 ,how fast is it going

Answers

Explanation:

distance= 300m t= 25s

speed= distance/time

speed= 300/25

speed = 12ms^-1

it will go 100m In 25, bc a train is fast so it will a 100 as twice

Explanation:

So make sure you have the answer please

When you throw a sheet of paper and a stone from a certain height under what condition will the two fall to the ground at the same time?​

Answers

Answer:

when there is no resistance.( in a vacuum)

Explanation:

this is because of acceleration due to gravity that is equal on both objects.

Somebody plz answer both these questions correclty thanks!!!!!
(WILL MARK BRAINLIEST) promise :)
:D

Answers

Answer:

Which questions do you need help on?

A telescope is used to take two images, one magnified 100x and the other magnified 400x. In which image would you be able to see the most detail and why?.

Answers

We can see the image in most detail that having 400x magnification as compared to 100x.

What is magnification?

Magnification is the process in which the size of an object is enlarging but not physical size of something. Those instruments having high magnification power can shows us the image larger and due to which we can see that image clearly.

So we can conclude that we can see the image in most detail that having 400x magnification.

Learn more about telescope here: https://brainly.com/question/18300677

A certain resistance thermometer reads 14. 5 Ω in pure melting ice and 18. 5 Ω in steam at standard atmospheric pressure. What will be its resistance at room temperature of 27. 0 o C ?

Answers

The resistance of the thermometer at the given temperature is 15.58 ohms.

Resistance of the thermometer

The resistance of the thermometer can be determined by applying method of interpolation as shown below;

[tex]\frac{R_\theta - R_0}{R_{100} - R_0} = \frac{\theta -0}{100 - 0}[/tex]

where;

Rθ is the resistance of the thermometer at 27⁰CR100 is the resistance at steam temperatureR0 is the ice temperature

[tex]\\\\\frac{R_\theta - 14.5}{18.5 - 14.5} = \frac{27}{100} \\\\\frac{R_\theta - 14.5}{4} = \frac{27}{100}\\\\100R_\theta - 1450 = 108\\\\100R_\theta = 1558\\\\R_\theta = 15.58 \ ohms[/tex]

Thus, the resistance of the thermometer at the given temperature is 15.58 ohms.

Learn more about resistance here: https://brainly.com/question/469388

Participating in physical activity can help to reduce stress in all of the following ways except: a. it releases stored energy b. it causes fatigue and exhaustion c. it releases tension d. it relaxes muscles please select the best answer from the choices provided. a b c d

Answers

Participating in physical activity can help to reduce stress in all of the following ways except it causes fatigue and exhaustion. Option b is correct.

What is physical activity?

Anybody movement requiring energy expenditure that is produced by skeletal muscles is defined as physical activity. Physical exercise encompasses all forms of movement,

Whether it is done for fun, to go to and from locations, or as part of one's job. Physical activity, both moderate and strenuous, is beneficial to one's health.

Physical activity is good for your heart, body, and mind. Physical exercise aids in the prevention and treatment of noncommunicable illnesses including heart disease, cancer, and diabetes.

Depression and anxiety symptoms are alleviated by physical activity. Physical activity improves one's ability to think, learn, and judge.

Participating in physical activity can help to reduce stress in all of the following ways except it causes fatigue and exhaustion.

Hence option b is correct.

To  learn more about physical activity refer to the link;

https://brainly.com/question/13154640

Answer:

b

Explanation:

did on edge

Rebecca and John take their daughter to Disney World. When they asked their daughter two years later if she remembered going she answered no. At the time of the trip to Disney World, the couple's daughter was MOST likely _____ years of age

Answers

Answer:

3

Explanation:

1-3 age is hard to remember

what’s an example of Newton’s 3rd law of motion?

Answers

Answer:for ever reaction there is an equal and opposite reaction

Explanation:

Answer:

, when you jump high, your legs apply a force to the ground.

Explanation:

When you have been swimming swimming and you come out of the pool, you may feel cold. Use your understanding of endothermic processes to explain why.

Answers

Explanation:

Edothermic process is the absorbtion of heat.

It is the opposite of exothermic process which is the release of energy. In edothermic process thermal energy is absorbed from the surrounding

How much work is done by a a 500watt blender that takes 180 seconds to crush ice

Answers

Answer:

Work done = 9 x 10⁴ J

Explanation:

Given :-

Power = 500 Watts

Time Taken = 180 seconds

To Find :-

Work Done

Formula to be used :-

Power = Work Done / Time Taken

Work Done = Power x Time Taken

Inputting the values :-

= 500 W x 180 seconds

= 90,000 J

= 9 x 10⁴ J

What is the volume of the shape below?

Help me plzzzz

Answers

Answer:

20cm

Explanation:

2 × 5 × 2 = 20

Hope this helps.

Using the velocity versus time graph, what was the average acceleration of the object during segment B?

a) 0 m/s/s
b)20 ms/s
c) 10 m/s/s
d) 5 m/s/s

Answers

Answer:

the answer is B 20 ms/s

Explanation:

N/A

Thus the for the given velocity versus time graph the average acceleration of the object during segment B is 0 m/s/s.Hence, option A is the correct option.

Average acceleration- Acceleration is defined as the rate of change of acceleration. Average acceleration for an interval can be defined as the rate of change of velocity for that interval per time.

Let [tex]\Delta v[/tex] be the change in velocity and [tex]\Delta t[/tex] be the change in time in a given time interval. Then average acceleration is,

[tex]a= \dfrac{\Delta v}{\Delta t}[/tex]

At segment B, It starts at 4.5 seconds and ends at 10 seconds. The total time interval for this segment is 5.5 seconds.Therefore,

[tex]\Delta t=5.5[/tex]

Now the change in velocity for segment B. In segment B the velocity does not change at any point and keeps the value of 20 m/sec at the time interval.

According to the definition of the average acceleration when an object is changing its velocity (whether by a constant amount or a varying amount) then it is an accelerating object. And an object with a constant velocity is not accelerating.

Thus the for the given velocity versus time graph the average acceleration of the object during segment B is 0 m/s/s.Hence, option A is the correct option.

For more about the acceleration, follow the link below,

https://brainly.com/question/1479537

What happens to particle movement/speed when energy is added to a phase?

Answers

When energy is added the movement of the particles increases and so does their speed.

F
F
A
a
a
F
F
F
D
E
Order greatest to least

Answers

Answer:

E B D A C F

Explanation:

Answer:

E B D A C F

Explanation:

How does the star’s apparent brightness change over time?

Answers

The closer light source will appear brighter. In other words the closer the stars are the brighter they will be. Also The darker the sky is the more you will see the stars.

How many Protons does Na (sodium) have
O 23
O 12
O 13
O 11

Answers

The answer is 11.....

Humpback whales are known to produce a collection of elaborate
and repeating sounds with frequencies ranging from 20 Hz to 10 kHz. The sound
waves travel through water at speeds of approximately 1400 m/s. Determine the
wavelengths of the waves at the lower and the upper end of this frequency
range.​

Answers

Answer:

70 m.

Explanation:

Given,

Frequency, f = 20 HZ

speed of sound, v = 1400 m/s

wavelength of the waves = ?

we know,

v = f λ

Hence, the wavelength of the wave is equal to 70 m.

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