Answer:
49 kg is the mass of the couch.
Explanation:
GPE = mgh
9800 = m * 10 * 20
9800 = 200m
m = (9800/20) = 49 m
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Explanation:
ability to gain speed over a short period of time.
the formula is:
_ v - v0 <Delta> v
a = _______ = ________
t <Delta> t
A strain on the body or mind is the BEST definition of stress.
- Stress can be defined as a deep feeling of emotional (mental) and/or physical tension that has a negative effect on the person.
- The most common symptoms indicating that one person is suffering stress include frustration, anger, and nervousness.
- Stress is caused by different problems between specific mismatch appraisals and abilities that has a person.
In conclusion, a strain on the body or mind is the BEST definition of stress.
Learn more about stress here:
brainly.com/question/11819849
Explanation:
Looking at the placement of primary colors in the RGB color wheel, the mixing of the red and green colors will create Yellow secondary color.
Explanation:
The given data is as follows.
q = -25.0 kJ, Pressure (P) = 1.50 atm
= (12 - 6) L = 6 L
Therefore, product of pressure and change in volume will be as follows.
= 7.5 L atm
= 
= 759.75 J
Now, we will calculate the change in internal energy as follows.
= 
= -25000 kJ + 759.75 J
= 24240.25 J
or, = 24.240 kJ (as 1 kJ = 1000 J)
Thus, we can conclude that the change in internal energy (
) for a system is 24.240 kJ.
