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Molodets [167]
4 years ago
13

What causes earth to have a complete year

Physics
1 answer:
RUDIKE [14]4 years ago
7 0

Answer:

Earth's Tilt and The Seasons. Earth, like all of the planets in the Solar System, travels around the Sun. One complete orbit of the Sun is known as a year and it takes Earth 365 days, 5 hours, 48 minutes and 46 seconds to complete an orbit. The changing seasons are caused by the fact that Earth is tilted. please vote me brainliest i can't message no one cuz i haven't got enough points i'm desperate.

Explanation:

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There are three long parallel wires arranged so that, in cross-section, they occupy the points of an equilateral triangle. Is th
Harrizon [31]

Answer:

Yes, there is such a way.

Explanation:

If currents flow in the same direction in two or more long parallel wires, there will be an attractive force between the wires. If the current flows in different directions, there will be a repulsive force between the wires. In this case, these three parallel wires, can be be made to carry current in the same direction, creating an attractive force between all three wires.

Note that it is not possible to have at the least one of them carry current in the opposite direction and still have an attractive current between them.

8 0
3 years ago
a plane travels 2.5 km at an angle of 35 degrees to the ground and then changes Direction and travels 5.2 km and an angle of 22
Bess [88]

We can solve for the resultant x and y components by using the sine and cosine functions.

resultant x = 2.5 cos 35 + 5.2 cos 22 = 6.87 km

resultant y = 2.5 sin 35 + 5.2 sin 22 = 3.38 km

 

The resultant displacement is calculated using hypotenuse equation:

displacement = sqrt (6.87^2 + 3.38^2)

displacement = 7.66 km

 

The resultant angle is:

θ = tan^-1 (3.38 / 6.87)

θ = 26.20°

 

Therefore the magnitude and direction is:

7.66 km, 26.20° to the ground

3 0
4 years ago
What is the primary cause of diffusion?
Lostsunrise [7]
<span><u>Answer</u>
c). random internal motion of atoms and molecules.

<u>Explanation </u>
Diffusion is the movement of particles from a region of high concentration to region of low concentration. The rate of diffusion can be increased by increasing amount of temperature but this is not its primary cause. Diffusion is primarily caused by movement of molecules or atoms in a substances. Form the choices given, the correct answer is c. random internal motion of atoms and molecules. 
</span>
3 0
3 years ago
Read 2 more answers
A product _____ is a group of products offered by a firm that are closely related to each other, either in terms of how they wor
Vikki [24]

A product line is a group of products offered by a firm that are closely related to each other, either in terms of how they work, or the customers they serve. An example is the production of wine, beer, spirit, whiskey, vodka. These products may be different but they are related because they are all alcohol liquor.

8 0
3 years ago
A small Keplerian telescope has an objective with a 1.33 m focal length. Its eyepiece is a 2.82 cm focal length lens. It is used
forsale [732]

Answer:

The angle is  \phi =  0.45 0 ^o

Explanation:

From the question we are told that  

     The objective  focal length   f  =  1.33 \ m

     The  eyepiece focal length is  f_o =  2.82 \ cm  = 0.0282 \ m

      The diameter of the sunlight is  d  = 25000km =  2.5 *10^{7} \ m

       The distance of the sun from from the earth is  D =  1.5 *10^8 km  =  1.5 *10^{11} \ m

  Generally the magnification of the object is mathematically evaluated as

        m  =  -\frac{f_o }{f_e }

The negative  sign is because the lens of the telescope is  diverging light

 substituting values  

      m  =  -\frac{1.33 }{0.0282 }

      m  =  - 47.16 3

Now we can obtain the angle made by the object (sunlight ) with respect to the telescope  as follows  

        tan  \theta  = \frac{d}{D}

substituting values

      tan  \theta  = \frac{2.5 *10^{7}}{1.5*10^{11}}

      tan  \theta  =  0.0001667

      \theta=  tan^{-1}[0.0001667]

     \theta= 0.00955^o

The  magnification can  also be mathematically represented as

      m  =  \frac{\phi }{\theta }

Where \phi is the angle the image made with telescope

Since the negative sign indicate direction of light movement we will remove it from the calculation below

      =>   47.163  =  \frac{\phi}{0.00955}

     =>    \phi =  0.45 0 ^o

8 0
3 years ago
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