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Contact [7]
2 years ago
15

Ice caps at the north and south poles are very reflective the ice reflects light and heat rather than absorbing it. If global wa

rming occurs, then the increase in temperature will cause polar ice to melt, and the bear dart ground will absorb rather than reflect heat. This absorption of people further boost temperature of the earth. Is this a positive and a negative feedback loop?
A. Positive
B.Negative
C. Both a and B
Physics
1 answer:
PolarNik [594]2 years ago
5 0
The way you described it, a small change will cause a bigger change.
That's Positive feedback.
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Students perform an experiment in which they drop two eggs with equal mass from a balcony. in the first trial, the egg hits the
german

The impulse was greater in the first experiment because the egg broke.

<h3>What is impulse?</h3>

The term impulse is defined a the product of the force and time. We know that the impulse is high when a large force acts for a short time.

From the experiment if the students, we can conclude that  the impulse was greater in the first experiment because the egg broke.

Learn more about impulse:brainly.com/question/16980676

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6 0
1 year ago
Boyles law<br> squeezing a balloon is one way to burst it. Why? ...?
KiRa [710]
According to Boyle's Law,  volume is inversely proportional to pressure. It means if the volume of a gas goes up the pressure goes down and if the volume of the gas goes up the pressure goes down. When the pressure of air inside the inflated balloon is more than the atmospheric pressure outside the balloon. And also when the density inside is greater than the density outside. The molecules inside the balloon move and bang around the inner walls which produces force, which provides the pressure of an enclosed air.
6 0
3 years ago
What is the weight of a dog with a mass of 12 kg? Explain how you obtained your answer.
butalik [34]

Answer: 117.60N

Explanation:

Weight is a force. Therefore, we can use the force formula to find weight.

Formula: W=m*g

W = weight

m = mass

g = acceleration due to gravity (9.8m/s^2)

W=(12kg)(9.8m/s^2)\\W=117.60N

5 0
3 years ago
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After pushing away from each other, two objects have equal but opposite momentum. Which of the following is true for the total m
weqwewe [10]
I think the answer is B
5 0
3 years ago
A string that is 3.6 m long is tied between two posts and plucked. The string produces a wave that has a frequency of 320 Hz and
marin [14]

To solve this problem it is necessary to apply the concepts related to wavelength depending on the frequency and speed. Mathematically, the wavelength can be expressed as

\lambda = \frac{v}{f}

Where,

v = Velocity

f = Frequency,

Our values are given as

L = 3.6m

v= 192m/s

f= 320Hz

Replacing we have that

\lambda = \frac{192}{320}

\lambda = 0.6m

The total number of 'wavelengths' that will be in the string will be subject to the total length over the size of each of these undulations, that is,

N = \frac{L}{\lambda}

N = \frac{3.6}{0.6}

N = 6

Therefore the number of wavelengths of the wave fit on the string is 6.

5 0
2 years ago
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