Olivia put a glass of water in the freezer. She left it there for three hours. When she returned, the water had turned to ice. W
1 answer:
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Answer:
The change in gravitational potential energy of the climber-Earth system is
Explanation:
From the question we are told that
The mass of the hiker is
The time taken is
The vertical elevation after time T is
The change in gravitational potential is mathematically represented as
here g is the acceleration due to gravity with value
substituting values
Answer:
Part 1
Part 2
Part 3
Explanation:
Given
Number of protons
Radius of nucleus
Distance of the electrons
Part 1
Electric field produced by just outside its surface
Part 2
Electric field produced by just outside its surface
Part 3
The net electric field inside a uniform shell of negative charge is zero because the electric flux lines cancel out each other
hence, the solution is
Part 1
Part 2
Part 3
Answer:
B. The same on the moon.
Explanation:
The density of an object is the ratio of the mass contained by the object to the volume occupied by that mass.
When the object is taken from the earth to anywhere in the universe, its mass remains constant. The dimensions of the object and hence its volume also remains constant anywhere in the universe.
Therefore, the density of the object will also remain the same as it depends upon the mass and the volume of the object.
So, the correct option is:
<u>B. The same on the moon.</u>