Both answers are true. Things like basic quantum mechanics helped us better our technology like iPhones. And the second option explains itself. We get to understand the universe better and predict phenomena when we learn more about any Physical Science
No. The gravitational pull of earth's surface cannot change
If you melt, boil, or bend an item, it is still the same thing. For instance, If you melt a sugar cube, it will stay as sugar. But if you burn paper, it will turn into ash. Hope this helps!
Answer:
The ball will lose heat at the rate of 0.072 J/min.
Explanation:
According to the Newton's cooling law, the rate of cooling R is given by the formula.
R=-k(T-To)
where k is a constant, T is the temperature of the object and To is the temperature of the surrounding.
Initially, R=0.15 J/min, To=700 K and T=950 K.
So 0.15=-k(950-700)
k=-0.15/250 J/K min.
Finally, To=700 K and T=820 K
R=-(-0.15/250)(820-700)
R= 0.072 J/min
Know more about Newton's cooling law.
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This would actually represents how the distance expands over the period of time. So, when this shows us that, this person or this thing went 25 miles in 4 hours, this would show us the acceleration of this car and he speed that this car or object would contain.
