Answer:
the answer is 55 mph
Explanation:
hope this helped
b. A stack worth $1
c. A stack worth $5
d. A stack worth $1,000
(Give your answer in millimeters and meters.)
Brahe
Kepler
Newton
Answer:
Newton
Explanation:
Ptolemy usually talked about "Earth-centered," or "geocentric" theory that all celestial objects — including the planets, Sun, Moon, and stars — orbited Earth. Earth, in the center of the universe, did not move at all and obviously this theory has been proven wrong.
Brahe model had all the planets (except Earth) orbiting around the Sun, but then the Sun orbited around the Earth. This is also a wrong concept.
Kepler's Laws are mostly based upon the Planetary Motion and are incomplete is some areas.
Only Newton law best describes the motion of all planets where he says that all motion, whether it was the orbit of the Moon around the Earth or an apple falling from a tree, followed the same basic principles.
(1) 1 J (3) 100 J
(2) 0.01 J (4) 1000 J
Answer: Option 1: 1 J
Explanation:
Average mass of an apple is between 60 g to 200 g It is not greater than this.
We can take an average mass, m =130 g
This average mass approximation would not affect the final answer.
The work done in lifting any object is given by:
W = m g h
Where, m is the mass of the object, g is the acceleration due to gravity and h is the height to which the object is lifted.
It is given that, h = 1 m
g = 9.8 m/s²
m = 130 g = 0.13 kg
⇒W =0.13 kg×9.8 m/s²×1 m = 1.3 J ≈ 1 J
Thus, the work done in lifting an apple one meter near Earth’s surface is approximately 1 J
b) an electrical device
c) an electric device
d) an electronic device