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Lemur [1.5K]
3 years ago
5

The summer season is closely linked to which of the following?

Physics
2 answers:
boyakko [2]3 years ago
7 0

Answer:

The correct statement is “A solstice because the Earth is very close to the Sun”

Explanation:

The solstice occurs when the sun is closer or further from one of the Earth's hemispheres, increasing the duration of the day in one part of the world, and decreasing its duration in the other. That is, during the solstice, the sun is closer to one of the hemispheres, causing the day to have a longer duration, while the night is longer in the other hemisphere.

In the case of the equinox, the sun is on the equator line, so the day and night in both hemispheres have the same duration. At that time the part of the Earth closest to the Sun is the equator.

The solstice is caused because the axis on which our planet rotates on itself is slightly inclined with respect to the translation plane, this is its trajectory around the Sun.

That implies that different regions of the globe receive more or less light at different times of the year.

The equinox like the solstice is presented twice a year, marking the entrance of the seasons. The sunny days are longer during the summer solstice, while the nights are longer during the winter solstice. The equinox occurs at the beginning of autumn and spring, when the sun is closer to the equator.

So <u><em>the correct statement is “A solstice because the Earth is very close to the Sun” </em></u>

Firdavs [7]3 years ago
4 0
The summer season begins with a solstice and ends with an equinox, in both hemispheres.
Equinoxes and solstices have no connection to the Earth's distance from the sun.
In the northern hemisphere, the Earth is FARTHEST from the sun early in summer, around the first week of July.
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8 0
3 years ago
A football player threw a ball upward at an angle or 24 degrees with the horizontal with A velocity of 18 m/s. What are the vert
svet-max [94.6K]

Answer:

V_y = 16.44\ m/s

V_y = 7.32\ m/s<em />

Explanation:

Given

\theta = 24

Velocity\ (V) = 18m/s

Required

Determine the vertical and horizontal components

The vertical (Vy) and horizontal (Vx) components is calculated as thus:

V_x = Vcos\theta

V_y = Vsin\theta

Calculating Vertical Components:

V_y = Vsin\theta

V_y = 18 * sin24

V_y = 18 * 0.40673664307

V_y = 7.32125957526

V_y = 7.32\ m/s<em> --- Approximated</em>

Calculating Horizontal Components:

V_x = Vcos\theta

V_x = 18 * cos24

V_x = 18 * 0.91354545764

V_x = 16.4438182375

V_x = 16.44\ m/s <em>--- Approximated</em>

4 0
3 years ago
A 4.04 kg block slides down a smooth, frictionless plane having an inclination of 30◦. The acceleration of gravity is 9.8 m/s^2.
aleksandrvk [35]

Answer:

Explanation:

What a lot of words to solve such a simple problem! The perpendicular force is the one that is pushing straight down on the plane. There is no side to side movement here or friction acting on this dimension at all. Perpendicular force is the same as the weight of the block. That's it! Perpendicular force is also normal force which is the same thing as weight:

w = mg so

w = (4.04)(9.8) and

w = 4.0 × 10¹ N

5 0
3 years ago
An airplane is traveling from North Africa to England. Which arrow correctly shows the direction gravity pulls the plane?
solniwko [45]

Given that,

The attached figure shows an airplane is traveling from North Africa to England.

To find,

The arrow that shows the direction gravity pulls the plane.

Solution,

The force of gravity always acts in the downward direction, The weight of an object is given by :

W = mg

Arrow 2 shows the direction of gravitational pull.

8 0
3 years ago
A 90 kg ice skater moving at 12.0 m/s on the ice encounters a region of roughed up ice with a coefficient of kinetic friction of
balandron [24]

Answer:

The skater covers a distance of <u>15 m</u> before stopping.

Explanation:

Let the distance traveled before stopping be 'd' m.

Given:

Mass of the skater (m) = 90 kg

Initial velocity of the skater (u) = 12.0 m/s

Final velocity of the skater (v) = 0 m/s (Stops finally)

Coefficient of kinetic friction (μ) = 0.490

Acceleration due to gravity (g) = 9.8 m/s²

Now, we know that, from work-energy theorem, the work done by the net force on a body is equal to the change in its kinetic energy.

Here, the net force acting on the skater is only frictional force which acts in the direction opposite to motion.

Frictional force is given as:

f=\mu N

Where, 'N' is the normal force acting on the skater. As there is no vertical motion, N=mg

∴ f=\mu mg=0.490\times 90\times 9.8=432.18\ N

Now, work done by friction is a negative work as friction and displacement are in opposite direction and is given as:

W=-fd=-432.18d

Now, change in kinetic energy is given as:

\Delta K=\frac{1}{2}m(v^2-u^2)\\\\\Delta K=\frac{1}{2}\times 90(0-12^2)\\\\\Delta K=45\times (-144)=-6480\ J

Therefore, from work-energy theorem,

W=\Delta K\\\\-432.18d=6480\\\\d=\frac{6480}{432.18}\\\\d=14.99\approx 15\ m

Hence, the skater covers a distance of 15 m before stopping.

7 0
3 years ago
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