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Varvara68 [4.7K]
3 years ago
13

Which statement best describes how energy transfer within earths atmosphere 10 affect a weather condition? A)during radiation ob

jects directly transfer heat to each other which affects the air temperature. B) during radiation electric magnetic waves transfer heat and light energy which affects the air temperature. C) during convection objects directly transfer heat to each other which affects the amount of precipitation. D) during convection electric magnetic waves transfer heat and light energy which affects the amount of precipitation
Physics
1 answer:
Pie3 years ago
5 0

Answer: D

Explanation: During convection, heat is being transferred between substances in direct contact with each other by electro magnetic waves.

Using the molten rock to explain the convection in the earth relative to how if affects the weather condition. Here, the rock is in a molten state, rising up from the bottom of the mantle after becoming hotter and less dense from the heat of the earth's core. As the rock loses heat into the earth's crust, it become cooler and more dense,sinking back to the core. These constantly circulating cells of hotter and cooler molten rock help to heat the earth's surface.

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A bullet of mass 0.107 kg traveling horizontally at a speed of 300 m/s embeds itself in a block of mass 3 kg that is sitting at
melisa1 [442]

Answer:

165.77J

Explanation:

M₁ = 0.107kg

u₁ = 300m/s

m₂ = 3kg

u₂ = 0

v =

m₁u₁ + m₂u₂ = (m₁ + m₂)V

(0.107*300) + 0 = (0.107 + 3)V

V = 32.1 / 3.107 = 10.33m/s

kinetic energy of the system after collision =

½m1v² + ½m2v²

K.E = ½(m1 + m2)v²

K.E = ½(0.107+3) * 10.33²

K.E = 165.77J

5 0
3 years ago
Can someone help me with these questions pls
gogolik [260]
8. ionic bond because lithium is a metal and oxygen is a non metal.

9. covalent bond because sulfur and oxygen are both non metals.

10. covalent

11. ionic
7 0
3 years ago
A student is skateboarding down a ramp that is 6.0 m long and inclined at 180 with respect to the horizontal. The initial speed
dlinn [17]

Answer:

The speed at the bottom of the ramp is 2.6m/s

Explanation:

The final velocity can be determined by means of the equations for a Uniformly Accelerated Rectilinear Motion:

v_{f}^{2} = v_{i}^{2} + 2ad

v_{f} = \sqrt{v_{i}^{2} + 2ad} (1)

Notice that it is necessary to found the acceleration that can be done by means of Newton's second law:

The acceleration can be found by means of Newton's second law:

\sum F_{net} = ma

Where \sum F_{net} is the net force, m is the mass and a is the acceleration.

Fx + Fy = ma (2)

<em>Force in the x axis:</em>

F_{x} = W_{x}  

The component of the weight in the x axis can be gotten by means of trigonometric:

\frac{OC}{H} = sen \theta

\frac{W_{x}}{W} = sen \theta

W_{x} = W sen \theta

W_{x} = mgsen \theta

F_{x} = mgsen \theta  (3)

<em>Forces in the y axis: </em>

F_{y} = N - W_{y} (4)

The component of the weight in the y axis can be gotten by means of trigonometric:

\frac{AC}{H} = cos \theta

\frac{W_{y}}{W} = cos \theta

W_{y}= W cos \theta

Remember that the weight is defined as:

W = mg

W_{y}= mgcos \theta

The normal force can be obtained from equation (4)

N - W_{y} = 0

N = W_{y}

N = mgcos \theta

Therefore, equation 4 can be rewritten as:

F_{y} = mgcos \theta - mgcos \theta

F_{y} = 0 (5)

Then, replacing equation 3 and equation 5 in equation 2 it is gotten:

mgsen \theta + 0 = ma

mgsen \theta = ma (6)

However, a can be isolated from equation 6

a = \frac{mgsen \theta}{m}

a = gsen \theta  (7)

Finally, equation 7 can be replaced in equation 2:

v_{f} = \sqrt{v_{i}^{2} + 2d(gsen \theta)}

v_{f} = \sqrt{(2.6m/s)^{2} + 2(6.0m)(9.8m/s^{2})sen 180^{\circ})}

v_{f} = 2.6m/s

Hence, the speed at the bottom of the ramp is 2.6m/s

7 0
3 years ago
Does gravity increase or decrease with greater mass???
xz_007 [3.2K]

Answer:

Increase

As the mass of either object increases, the force of gravitational attraction between them also increases.

Explanation:

The gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force.

As the mass of either object increases, the force of gravitational attraction between them also increases.

Answered by none other than the <u><em>ONE</em></u> & <u><em>ONLY</em></u> <u><em>#QUEEN</em></u> herself aka<u><em> #DRIPPQUEENMO</em></u>

<u><em></em></u>

<u><em>HOPE THIS HELPED!!!</em></u>

6 0
3 years ago
Which of the following is a form of kinetic energy?
Fudgin [204]

Answer:

hope this helps.

Explanation:

______

5 0
3 years ago
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