how long does it take for the moon to rotate around the earth

Answer:

Doors, Windows & Ventilator is a part of building component which is allow to Air & light move & circulate inward & outward, with in door Human or any other material can be move inside or outside also. here types of doors & windows & ventilation are given with necessity of location, function etc.

Window ventilators are used for ensuring a supply of fresh air from the outside into the interior. They are used in rooms with natural ventilation, mechanical extract ventilation or hybrid ventilation. ... It automatically adjusts the inflow of fresh air depending on the level of relative humidity in the room.

Explanation:

Answer:b

Explanation: each cm is 10mm so 5cm is 50mm that is less than 500mm

Given what we know about the speed of light, we can confirm that a single ray of light would take 1.3 seconds to travel from the Moon to the Earth.

Therefore, since the Moon sits at a distance of 390 million meters from the Earth, and the fact that light travels at approximately 300 million meters per second, we can confirm that light from the moon takes roughly 1.3 seconds to reach Earth.

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Answer:

2,500 Joules (J) or Newton Meter (N M)

Explanation:

Work = Force x Distance

The force in this equation is 500 Newtons. The distance (displacement) is 5 meters. Plug it into the equation above.

Work = 5m x 500n

Work = 2,500 Joules or Newton-Meters.

Therefore 2,500 Joules or Newton Meters of work is done on an object.

Answer:

25.

Explanation:

5

because you're taking off the front number which is one

Answer:

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120m per minute

If you take 960 and divide it by 8 you get 120 then you have the answer 120m per minute

Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to increases which aided in the formation of soil.

The process in which use of solar energy occur by  plants, algae and certain bacteria convert them into chemical energy and starch called as photosynthesis.

Photosynthesis occur in chloroplast of the green plant which has its own DNA, genes and synthesize their own proteins.

photosynthetic Pigments are also involve in this process which is responsible for trapping sunlight present in chlorophyll pigment of chloroplast, like chlorophyll a, b and c.

some of the Bacteria have chlorophyll known as bacteriochlorophyll which can absorb infrared rays, Carotenoids which are yellow, orange or red-coloured pigments that absorb bluish-green light., Xanthophyll, Phycobilins.

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Explanation:

uniform speed is just the consistent ratio of distance to time. it can a

so be thought as the speed of an object that does not change. an example is when a car moves at a speed of 60km/hrs without changing its speed. it keeps on moving at the same speed it started with

hope this becomes helpful

thanks

Answer: Controlar el sobrepeso bajas grasa , te pone de buen homor , te da mas energia , Te ayuda mantenerte saludable y combatir enfermedades.

Answer:

Its True

Explanation:

hope this helps

Answer:

acceleration = 3v 125 m/s^

final speed= 50 m/s

final speed in km/hr = 180 km/hr

Explanation:

A new model BMW can start from rest and travel 400 m in 16 s.then the acceleration during this time would be  1.5625 m/s²

There are three equations of motion given by  Newton

The first equation is given as follows

v = u + at

the second equation is given as follows

S = ut + 1/2×a×t²

the third equation is given as follows

v² - u² = 2×a×s

As given in the problem, A new model BMW can start from rest and travel 400 m in 16 s

distance covered by BMW  = 400meters

initial velocity(u) = 0 m/s

time = 16 seconds

acceleration(a) =? m/s²

By using the second equation of motion given by newton

S = ut + 1/2at²

S = 400 m ,u= 0 m/s , and t =16seconds

400  = 0 + a16²

a =400/256

a = 1.5625 m/s²

For the final speed of the car

v= u + at

v = 0 + 1.5625×16

v = 25 m/s

For calculating the speed in km /h

v = 25 ×3600/1000

 = 90 km/h

Thus, the acceleration during the first 16 s  time would be  1.5625 m/s²

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They all search for planets by measuring properties of a star rather than of the planets themselves. ... The size of the Doppler shift that we detect depends on the tilt of a planet's orbit.

Answer:

m

Explanation:

The characteristics of the random error allow to find the result for the best value of the forces is:

In a measurement in physics some type of instrument is used, therefore all measurements have a precision due to the minimum amount that can be measured with the given instrument, the correct way to give the measurement is

     m = m ± Δm

Where m is the measure and Δm the error due to the appreciation of the instrument.

In the measurement process there are variables type that can affect the results, in general they can be divided into two groups:

Statistical methods can be applied to the random type of processes to reduce their effect on the final result, one of the most efficient way is to carry out the measurement several times and since the errors are random, if we obtain the average it must be closer to the true value.

       [tex]m_{average} = \frac{\sum m_i}{n}[/tex]  

Where m_i  is each measurement and n is the number of measurements.

As a result it is

        [tex]m = m_{average} \pm \sigma[/tex]

Where σ  is the standard deviation.

It indicates that three measurements were made of each force, suppose that their values ​​are: F₀₁, F₀₂ and F₀₃, and the best value is

       [tex]F_{o \ average} = \frac{1}{3} (F_{o1} + F_{o2} + F_{o3} )[/tex]

For the tension of the body also takes three measurements.

        [tex]F_{t \ averag} = \frac{1}{3} (F_{t1} + F_{t2} + F_{t3} )[/tex]

The best value of the net forces should be obtained using the average values.

        [tex]\Delta F = F_{t \ average} - F_{o \ average}[/tex]  

In conclusion using the characteristics of the random error we can find the result for the best value of the forces is:

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Answer:False static friction helps us from not sliding it hold us.

Explanation:

Answer:

Find the dimension of each and every quantity in all the options to check whether they are the same or not. We can use any one formula of each identity to find its dimension.

Complete step by step solution:

To find the dimension of a quantity, we can use any formula related to that quantity but we will use the easiest ones to save time.

Force-

from Newton’s law of motion,

F=maF=ma

Dimension of force =[M][LT−2]=[MLT−2]=[M][LT−2]=[MLT−2]

Work done-

W=F×sW=F×s

Dimension of work=[MLT−2][L]=[ML2T−2]=[MLT−2][L]=[ML2T−2]

Momentum-

p=mvp=mv

Dimension of momentum=[M][LT1]=[MLT−1]=[M][LT1]=[MLT−1]

Impulse-

I=F×tI=F×t

Dimension of impulse=[MLT−2][T]=[

Answer:

The acceleration of an item is proportional to the net force exerted on it and inversely proportional to its mass. The acceleration of an item increases as the force pressing on it increases. The acceleration of an item decreases as the mass of the thing increases.

Answer:

Equality is the state of being equal in rights word and oportunities

Answer:

dry ice, air fresheners, polar evaporation, arsenic treatment

Answer: As the light moves through the diamond, it is scattered and fractured, creating the sparkle that diamonds are known for. This is the refraction. ... This refraction and dispersion also creates natural light and dark areas in the refracted light, depending on where the light hits along the planes of the diamond

Explanation:

Hi there!

Distance and displacement are different.

Distance is WITHOUT direction (scalar quantity)

Displacement TAKES INTO ACCOUNT direction (vector quantity), and is RELATIVE to the initial point.

DISTANCE:

Add up each segment's position:

0 - 2 sec: 0 m

2 - 5 sec: 10 - 4 = 6 m

5 - 6 sec: 0 m

6 - 8 sec: 10 - 2 = 8 m

8 - 9 sec: 0 m

9 - 12 sec: 5 - 2 = 3 m

Add up:

6 + 8 + 3 = 17 m

DISPLACEMENT:

To find displacement, simply look at the position at the final point (t = 12 sec) and compare to the initial position:

At t = 12: Position = 5 m

At t = 0: Position = 4 m

5 - 4 = 1 m

Answer:

The object will move if forces are unbalanced

Answer:

gravity

Explanation:

Question:

A block of mass 1kg is placed on an inclined plane at an angle of 30° to the horizontal. Calculate the frictional force, normal reaction, the coefficient of the static friction​

Answer:

Break the mg force into components in the plane of the inclined plank. Now force acting parallel is mgsin37°. Perpendicular force is mgcos37° which is equal to normal force.  

Now calculate max value of friction force which is 0.8*mg cos37°. Since its greater than pulling force mgsin37°, the body will be at rest and acceleration is zero.  

Force applied by surface is vector sum of normal force and friction force acting.

Answer:

150

Explanation:

15m/s×10s= 15m/a

and that is the correct answer

Answer:

the process that occurs when liquid changes to gas(boiling) is temperature increases

Answer:

The temperature increases

Explanation: