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zmey [24]
3 years ago
12

Help me on these 2 science questions for brainliest pleaseeeeeee...

Chemistry
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

Explanation:

1:) A

Mostly just use context clues

2:) D

The climate on earth is mostly due to earth's atmosphere. So, no, the moon doesn't have similar weather

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What forms of energy are invoked when snow on a mountain breaks loose, resulting in a avalanche
lana [24]

Answer:

As water vapor rises, there is an increase in the gravitational potential energy of the system. Part of this potential energy is released as snow falls onto the mountain. If an avalanche occurs, the snow on the mountain accelerates down slope, converting more <u>gravitational potential energy to kinetic energy.</u>

Explanation:

6 0
3 years ago
Assuming an efficiency of 41.50%, calculate the actual yield of magnesium nitrate formed from 136.7 g of magnesium and excess co
Sergio [31]
The actual yield is 489.8g of magnesium nitrate
5 0
3 years ago
what is the period of oscillation of an electron that is bouncing up and down in response to the passage of a packet of red lgih
Talja [164]

Answer:

2.33*10^-15 s

Explanation:

We need to estimate the period of oscillation of an electron that bounced up/down due to the effects of a passing packet of red light. The period of oscillation is the wavelength of the red light divided by the speed of the red light. We know that:

V = f*λ

where V = speed of the red light = 3*10^8 m/s

f = frequency = 1/T where T is the period of oscillation in seconds (s)

λ = the wavelength of the red light = 0.7*10^-6 m

Thus:

V = λ/T

T = λ/V = (0.7*10^-6)/(3*10^8) = 2.33*10^-15 s

7 0
3 years ago
Which of these materials is an example of a conductor? (of electricity)
Sidana [21]
I think it would be wool fabric, D. Because when you get a piece of wool fabric and rub it against a balloon it creates static electricity. Hope I helped some :) 
3 0
3 years ago
Read 2 more answers
Indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium after increasing
Arisa [49]
It depends on the nature of the reaction. if the reaction favors high pressure then the reaction will produce more products to reestablish the equilibrium. then if the the chemical reaction favors low pressure then when increasing the pressure the chemical reaction will produce more of the reactants to reestablish equilibrium.
5 0
3 years ago
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