I think the answer is B . sorry if wrong:( hope it helps<3
Answer:
Balances and Scales
A balance compares an object with a known mass to the object in question. One example of a balance is the triple beam balance. The standard unit of measure for mass is based on the metric system and is typically denoted as kilograms or grams.
Main Answer:
Assume that the temperature rises by 9.9 F
Initial Temperatures will be C1, F1
Final temperatures will be C2, F1 + 9.9
The relation between celsius and fahrenheit temperature is as follows:
C = 5/9(F - 32)
Increase in temperature in celsius will be
C2 - C1 = F2 - F1
C2 - C1 = 5/9 ( F1 +9.9 -32) - 5/9 ( F1 -32)
C2 - C1 = 5/9 ( F1 +9.9 -32 - F1 +32)
C2 - C1 = 5/9 (9.9)
C2 - C1 = 5.5C
Explanation:
What is temperature?
Temperature is defined as the degree of coldness or hotness of an object or a substance. Generally, it is measured in various temperature scales. They are celsius, fahrenheit, kelvin.
To know more about temperature, please visit:
brainly.com/question/25677592
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"Nitrogen gas" makes up 75% (approx. 78%) of the earth's atmosphere
Hope this helps!
Answer: His acceleration is -18.66m/s^2
Explanation:
Ok, the initial speed is 2.8m/s. (we can define the initial direction as the positive direction).
And he wants to stop, so he must accelerate in the opposite direction as the initial movement, then we would have:
a(t) = -A.
So we have a constant, and negative acceleration.
Now, if we want to find the velocity we must integrate over time, and we will get:
v(t) = -A*t + V0
where V0 is the initial velocity, we know that it is 2.8m/s, and t is the time in seconds.
Then the velocity is:
v(t) = -A*t + 2.8m/s.
Now we know that John is brought to rest in 0.15 seconds after he starts slowing down, this means that at t = 0.15 seconds, his velocity is equal to zero.
v(0.15s) = 0m/s = -A*0.15s + 2.8m/s
2.8m/s = A*0.15s
2.8m/s/0.15s = 18.66m/s^2 = A.
So his acceleration is -A, then we have that:
His acceleration is -18.66m/s^2
