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4 years ago

Which diagram best represents the relationship between the Earth and Sun that causes the changes in seasons on Earth?

Physics

2 answers:

Minchanka [31]4 years ago

8 0

The correct answer is the third diagram, the one in which Earth's axis is slightly inclined with respect to Earth's plane of orbit.

Indeed, the inclination of the Earth's axis has the effect to expose to the sunlight a hemisphere more than the other: i.e. during the month of January, the axis is inclined so that the South pole is closer to the Sun than the North Pole, resulting in summer in the Southern Hemisphere and winter in the Northern Hemisphere; while during the month of August the axis is inclined so that the North pole is closer to the Sun than the South Pole resulting in summer in the Northern Hemisphere and winter in the Southern Hemisphere.

lisov135 [29]4 years ago

8 0

Answer: third diagram

Explanation:

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A pumpkin pie in a 9.00 in diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the pie

Ghella [55]

Answer:

Explanation:

Given that,

Pie diameter = 9 in

Then, the circumference of the pie is

P = πd = 9π in

Then rim of the pie rotates 233 in,

Then,

1 Revolution of the pie is 9π in,

So, for 233 in, we will have

233 in / 9π in revolution

8.24 revolution

So, the revolution of the pie is 8.24

1 revolution is 2πrad

Then,

8.24 revolution = 8.24 × 2π = 51.78 rad.

And also, 1 revolution is 360°

Then,

8.24 revolution = 8.24 × 360 = 2966.4°

So,

In revolution, θ = 8.24 revolution

In radian = θ = 57.78 rad

In degree θ = 2966.4°

5 0

3 years ago

Can anyone answer this fast pls

nekit [7.7K]

I believe the answer would be 4.5. because it wouldnt be c or d. and 2 seems too small.

3 0

3 years ago

Which two statements describe a situation that would result in a change to landforms on Earth’s surface.

Lilit [14]

Answer:

A. A volcano erupts on a small island.

C. Flooding loosens dirt and rocks along a hillside.

Explanation:

Tectonic activities and mass wasting will greatly lead to a change in land forms on earth's surface.

When a volcano erupts on a small island, a change in landform often results. Also, flooding can lead to changes in land form.

Volcanic eruptions generally adds new materials to the earth surface.
Magma that reaches the surface called lava deposits rock materials unto the surface.
During an extensive period of flooding, materials are carried from one place to another and this greatly sculpts the surface of the earth.

7 0

4 years ago

A. What is the RMS speed of Helium atoms when the temperature of the Helium gas is 343.0 K? (Possibly useful constants: the atom

kkurt [141]

Answer:

(a) 1462.38 m/s

(b) 2068.13 m/s

Explanation:

(a)

The Kinetic energy of the atom can be given as:

K.E = (3/2)KT

where,

K = Boltzman's Constant = 1.38 x 10⁻²³ J/k

K.E = Kinetic Energy of atoms = 343 K

T = absolute temperature of atoms

The K.E is also given as:

K.E = (1/2)mv²

Comparing both equations:

(1/2)mv² = (3/2)KT

v² = 3KT/m

v = √[3KT/m]

where,

m = mass of Helium = (4 A.M.U)(1.66 X 10⁻²⁷ kg/ A.M.U) = 6.64 x 10⁻²⁷ kg

v = RMS Speed of Helium Atoms = ?

Therefore,

v = √[(3)(1.38 x 10⁻²³ J/K)(343 K)/(6.64 x 10⁻²⁷ kg)]

v = 1462.38 m/s

(b)

For double temperature:

T = 2 x 343 K = 686 K

all other data remains same:

v = √[(3)(1.38 x 10⁻²³ J/K)(686 K)/(6.64 x 10⁻²⁷ kg)]

v = 2068.13 m/s

8 0

3 years ago

Imagine That Kevin can instantly transport himself between Planet X and planet Y. Which statement could be said about Kevin in t

Svetradugi [14.3K]

When Kevin pulls off this stunt, his average speed is (distance) / (time).

So, whatever the distance may be, his average speed for the trip is

(some distance)/0 = infinite speed.

Now, stay with me here:

His acceleration at the beginning of the trip is

(change in speed) / (time to change)

Whatever speed he started at, his acceleration had to be

(infinite change in speed)/(no time).

That's a big acceleration doncha know.

He needed an infinite force and an infinite amount of energy from somewhere to achieve that acceleration, and as soon as he started accelerating, his insides got totally shredded.

Whatever arrived on Planet-Y looked like a pile of overcooked pasta.

It wasn't worth the trip.

7 0

3 years ago