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True [87]
3 years ago
13

Wood has chemical energy, which can be used to generate thermal and radiant energy when burned in a fireplace. Which best explai

ns what happens to the total amount of energy in this scenario? The total energy in the system increases because chemical energy creates thermal and radiant energy. The total energy in the system decreases because chemical energy disappears as thermal and radiant energy are generated. The total energy in the system remains the same as the decrease in chemical energy equals the increase in thermal and radiant energy. The total energy in the system remains the same as the increase in chemical energy equals the decrease in thermal and radiant energy.
Physics
2 answers:
Citrus2011 [14]3 years ago
8 0

Answer:

C

Explanation: i took the test

guapka [62]3 years ago
8 0

Answer:

c

Explanation:

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Why can the atmosphere hold on to heat
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Answer:

A. Air

Explanation:

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3 years ago
In which situation is static electricity most likely to form?
Papessa [141]

Answer:

I'd go for 'Marie drives a car'

Explanation:

Static electricity will possible form in all the scenarios, but is more likely to form when you're driving a car. This is due to the friction between the body of the car and the particles in the air around the body of the car. This is why chains are sometimes attached to fuel tankers when transporting them. The chain is made to touch the ground so that any charge built up can be safely conducted to the earth, reducing the chances of a fire outbreak due to charges igniting the fuel.

7 0
3 years ago
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Please help me it's URGENT (#10 btw and also how do I solve for time​
Afina-wow [57]

Answer:

t = 12s

Explanation:

Given:

v-initial = 0 m/s

x = 360 m

a = 5.0 m/s^2

Solve:

x = (v-initial)t + 1/2(a*t^2)

360 = 0t + 1/2 (5.0t^2)

360 = 2.5 t^2

144 = t^2

t = sqrt(144) = 12

Therefore, it takes 12 seconds.

5 0
3 years ago
A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.25 kg to a friend standing in front of him
juin [17]

Answer:

The velocity of the student has after throwing the book is 0.0345 m/s.

Explanation:

Given that,

Mass of book =1.25 kg

Combined mass = 112 kg

Velocity of book = 3.61 m/s

Angle = 31°

We need to calculate the magnitude of the velocity of the student has after throwing the book

Using conservation of momentum along horizontal  direction

m_{b}v_{b}\cos\theta= m_{c}v_{c}

v_{s}=\dfrac{m_{b}v_{b}\cos\theta}{m_{c}}

Put the value into the formula

v_{c}=\dfrac{1.25\times3.61\times\cos31}{112}

v_{c}=0.0345\ m/s

Hence, The velocity of the student has after throwing the book is 0.0345 m/s.

3 0
3 years ago
Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink? Explain your answer.
Rainbow [258]
The answer to that is the rock will sink 
8 0
3 years ago
Read 2 more answers
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