Answer:
A. 29.4 Joules
Explanation:
Given parameters:
Mass of the book = 1.5kg
Height of lift = 2m
Unknown:
Potential energy acquired = ?
Solution:
Potential energy is the energy due to the position of a body.
Mathematically;
Potential energy = mgh
m is the mass of the body
g is the acceleration due to gravity = 9.8m/s²
h is the height
Potential energy = 1.5 x 9.8 x 2
Potential energy = 29.4J
Question Continuation
1. Mercury goes through a full cycle of phases
2. Moon rises in east, sets in west each day
3. Stars circle daily around north or south celestial pole
Answer:
The true statements are are (2) and (3)
2. Moon rises in east, sets in west each day.
From all part of the earth, we can see and observe the moon only that the stars move in parallel to the horizon in the north pole.
3. Stars circle daily around north or south celestial pole.
The relative position of starts are always altered because of the earth's rotation
While (1) does not really occur as seen from Earth
1. Mercury goes through a full cycle of phases
We can see the mercury from the Earth but in its whole form not in its phases.
Answer:
Bushfires in Australia are a widespread and regular occurrence that have contributed significantly to moulding the nature of the continent over millions of years.
Answer: We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.
Hope this helps
Answer:
The correct answer is option A, they are located in Asia’s tallest mountains, the Himalayan
Explanation:
