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3 years ago

What is the outermost part of the sun’s atmosphere called?

Physics

2 answers:

Taya2010 [7]3 years ago

8 0

<span>Hotosphere, the Chromosphere, the Transition Region and the Corona.</span>

Whitepunk [10]3 years ago

7 0

It is called the atmosphere

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A bucket filled woth water seems light while it sinks into water.Also show their relation using formula

slavikrds [6]

Answer: This phenomenon happens due to upthrust exerted by water.

Explanation:

We know that,

Liquid Pressure is directly proportional to the height of the vertical column in the liquid.(P∝h)

When a bucket filled water is sunk into the water container, there occur difference in the pressure in top and bottom of the water container. Due to this, water exerts an upward force on the bucket filled with water. This is called Uprthrust.

Upthrust on the bucket makes the bucket filled with water lose some of it's weight and causes apparent loss in weight.

Hence, the bucket filled with water seems light while it sinks into water.

6 0

2 years ago

a shopper pushes a cart 40.0m south down one aisle and then turns 90.0 degrees and moves 15.0m. He then makes another 90.0 degre

valentinak56 [21]

Answer:

Explanation:

The displacement is the distnce of the shopper from the starting point.

Sum of movement along the vertical = 40-20 = 20m

Movement along the horizontal (x direction) = 15.0m

Displacement will be gotten using the pythagoras theorem.

d = √20²+ 15²

d = √400+225

d = √625

d = 25.0m

Hence the shoppers total displacement is 25.0m

8 0

2 years ago

Which equation is used to calculate the electric potential in an electric field from a point charge?

scZoUnD [109]

Answer:

The electric potential (voltage) $V$ produced by a point charge $Q$ , at any point in space, is given by the following equation:

$V=k\frac{Q}{r}$

Where:

$k=8.99(10)^{9} Nm^{2}/C^{2}$ is the Coulomb's constant

$r$ is the distance

The result is a scalar quantity, is defined as the electric potential energy per unit of charge and determines the electric influence exerted by the charge on that point of space.

6 0

2 years ago

Arrange the following in order of their appearance in the life cycle of a star: white dwarf, red giant, main-sequence star. Expl

Goryan [66]

Main-sequence star, red giant, and white dwarf

6 0

2 years ago

A thin lens with a focal length of 6.0 cm is used as a simple magnifier by (a) what angular magnification is obtainable with the

Serhud [2]

Answer:

4.167

4.83871 cm

Explanation:

u = Object distance

v = Image distance = 25 cm

f = Focal length = 6 cm

Angular magnification is given by

$m=\frac{25}{f}\\\Rightarrow m=\frac{25}{6}\\\Rightarrow m=4.167$

The angular magnification of the lens is 4.167

Lens equation

$\frac{1}{f}=\frac{1}{u}+\frac{1}{v}\\\Rightarrow \frac{1}{6}=\frac{1}{u}+\frac{1}{-25}\\\Rightarrow \frac{1}{6}+\frac{1}{25}=\frac{1}{u}\\\Rightarrow \frac{1}{u}=\frac{31}{150}\\\Rightarrow u=4.83871\ cm$

The closest distance by which the object can be examined is 4.83871 cm

5 0

2 years ago