We are going to focus on the gravitational force between Earth and our Moon. The Earth has a mass of about 6 x 10/24 kg and the
Moon has a
mass of about 7.3 x 10/22 kg. They are also currently about 4 x 10/8 meters apart.
The gravitational constant, G, is 6.67 x 10-/11 as always.
Question 1
If you were to weight yourself in the moon and the Earth, which would have the higher weight?
mass of about 7.3 x 10/22 kg. They are also currently about 4 x 10/8 meters apart.
The gravitational constant, G, is 6.67 x 10-/11 as always.
Question 1
If you were to weight yourself in the moon and the Earth, which would have the higher weight?
1 answer:
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Answer:
(a) A =
(b)
(c)
(d)
Solution:
As per the question:
Radius of atom, r = 1.95
Now,
(a) For a simple cubic lattice, lattice constant A:
A = 2r
A =
(b) For body centered cubic lattice:
(c) For face centered cubic lattice:
(d) For diamond lattice:
<u>Answer:</u>
Yes
<u>Explanation:</u>
Average velocity is the ratio of total displacement and time taken for that displacement:
This means if displacement is zero, then average velocity will also be zero.
Displacement is zero when an object moves some distance in one direction, and then moves the same distance but in the opposite direction.
∴ As it is possible for displacement to be zero, it is also possible for average velocity to be zero.