Answer:
astronomical unit
Explanation:
https://en.wikipedia.org/wiki/Astronomical_unit
The energy that the student shoud use in order to climb the stairs is equal to its increase in gravitational potential energy:
where m is the mass of the student, g the gravitational acceleration and
the variation of height. Plugging numbers into the equation, we find
The power required for the student to climb the stairs is equal to the work done divided by the time taken:
Answer:
1.16 .
Explanation:
In the product of two or more physical quantities , the number of places after decimal in the result can never be more than least number of place after decimal in the quantities that are being multiplied .
Here numbers that are being multiplied are ,
1.12 , 1.25, and .83 , each containing two digits after decimal . So the product can not contain more than two digits after decimal . The principle behind it is that the result can not have more precision than the precision of amount that are being multiplied.
so
1.12 x 1.25 x .83 = 1.162 to be rounded off to 1.16 .
The answer is 1.16.
Answer:
All the predictions in the impact theory are true.
Explanation:
That’s because of their predictions. Modern computer simulations predict that there happened a collision between Earth and a planet named as Theia. The chunks of both planets conformed into a stable orbit and form the satellite that we know today as our Moon. Similarly, both moon and Earth share similar mantle compositions but cores are dissimilar in terms of their size and composition.