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Nataliya [291]
3 years ago
5

If you sit close to a campfire, the fire warms you. Describe how thermal energy is transferred from the fire to you.

Physics
2 answers:
White raven [17]3 years ago
7 0

Answer:

Explanation:

When you sit by a campfire, most of the heat you are receiving from the fire does not come from hot air. ... This radiation carries energy which is converted to heat when it hits another object and is absorbed. In contrast, conduction involves the direct movement of heat through an object.

myrzilka [38]3 years ago
6 0

Answer:

When you sit by a campfire, most of the heat you are receiving from the fire does not come from hot air. ... This radiation carries energy which is converted to heat when it hits another object and is absorbed. In contrast, conduction involves the direct movement of heat through an object.

Explanation:

hope this helps u stay safe

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A mechanic pushes a 2.30 ✕ 103-kg car from rest to a speed of v, doing 4,800 J of work in the process. During this time, the car
Illusion [34]

The horizontal force applied is  160 N while the velocity is  2.03 m/s.

<h3>What is the speed of the car?</h3>

The work done by the car is obtained as the product of the force and the distance;

W = F x

F = ?

x = 30.0 m

W = 4,800 J

F = 4,800 J/30.0 m

F = 160 N

But F = ma

a = F/m

a = 160 N/2.30 ✕ 10^3-kg

a= 0.069 m/s

Now;

v^2 = u^2 + 2as

u = 0/ms because the car started from rest

v = √2as

v = √2 * 0.069 * 30

v = 2.03 m/s

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5 0
2 years ago
What does the Pauli exclusion principle state? . . A.Electrons will be added to an atom at the lowest possible level or sublevel
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The Pauli exclusion principle state that : D. Two electrons occupy the same orbital only if they have opposite spins

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5 0
3 years ago
Car 1 brakes to a stop on a dry road. Car 2 does the same thing, at the same speed, on a road where it has been raining. Explain
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Answer: car 1 is going how fast

Explanation: no need to answer without speed I won't know distance.

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What kind of graph uses points on a grid connected by line segments to represent data and is usually used to show change over ti
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Wolves are a keystone species because they are _____. at the top of the food chain are physically the largest animal in the food
enot [183]

Answer:

Wolves are a keystone species because they are so important to the ecosystem that their removal causes a catastrophic disequilibrium.

Explanation:

Wolves are the predators available in the environment but they exist in relatively less number while comparing it with another species of animals. Wolves influence their pray which are influenced by plants. Thus, They are so important to the ecosystem that their removal causes a catastrophic disequilibrium.

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3 years ago
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