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lozanna [386]
3 years ago
14

Please help me give a summary for trees lessons as I (cody) have a quiz Tommorow

Physics
2 answers:
Galina-37 [17]3 years ago
7 0
Just answering this so you can give brainly to the one above!!
zysi [14]3 years ago
3 0

Answer:

Conduction is heat transfer through stationary matter by physical contact. (The matter is stationary on a macroscopic scale—we know that thermal motion of the atoms and molecules occurs at any temperature above absolute zero.) Heat transferred from the burner of a stove through the bottom of a pan to food in the pan is transferred by conduction.

Convection is the heat transfer by the macroscopic movement of a fluid. This type of transfer takes place in a forced-air furnace and in weather systems, for example.

Heat transfer by radiation occurs when microwaves, infrared radiation, visible light, or another form of electromagnetic radiation is emitted or absorbed. An obvious example is the warming of Earth by the Sun. A less obvious example is thermal radiation from the human body.     I hope this helps you

Explanation:

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konstantin123 [22]

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4 0
3 years ago
Dory has a mass of 0.5 kg and she is has a net force of 1 N on her as she starts to swim
Lunna [17]

Answer:

a = 2 m/s²

Explanation:

7 0
3 years ago
A moving car of mass 1500 kg travels at a constant speed of 4.6 m/s. What is the car's average momentum?
Contact [7]

Answer:

c

Explanation:

c I think this is the answer

3 0
3 years ago
What is pin hole camera?
lesya692 [45]

Answer:

Explanation:

Pinhole camera is a simple camera. It does not have a lens. The light passes from a hole and an inverted image is formed on the opposite side of the box.

3 0
4 years ago
An object is thrown with a horizontal velocity of 20 m/s from a cliff that is 125 m above level ground. If air resistance is neg
Serjik [45]

Given that,

Horizontal velocity of the object, v = 20 m/s

Height of the cliff, h = 125 m

We need to find the time that it takes the object to fall to the ground from the cliff is most nearly. It can be calculated using second equation of motion. Let us consider that the initial speed of the object is 0. So,

h=ut+\dfrac{1}{2}at^2

Here, a = g and u = 0

h=\dfrac{1}{2}at^2\\\\t=\sqrt{\dfrac{2h}{g}} \\\\t=\sqrt{\dfrac{2\times 125}{10}} \\\\t=5\ s

So, the object will take 5 seconds to fall to the ground from the cliff.

5 0
3 years ago
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