Astronauts need special tools to work in space. One specially designed tool that astronauts use is a screwdriver. Using Newton’s
1 answer:
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Answer:
Explanation:
<u>Given:</u>
- Mass,
- Velocity,
where,
are the uncertainties in mass and velocity respectively.
The kinetic energy is given by
The uncertainty in kinetic energy is given as:
Kepler's third law is used to determine the relationship between the orbital period of a planet and the radius of the planet.
The distance of the earth from the sun is .
<h3>What is Kepler's third law?</h3>
Kepler's Third Law states that the square of the orbital period of a planet is directly proportional to the cube of the radius of their orbits. It means that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.
Given that Mars’s orbital period T is 687 days, and Mars’s distance from the Sun R is 2.279 × 10^11 m.
By using Kepler's third law, this can be written as,
Substituting the values, we get the value of constant k for mars.
The value of constant k is the same for Earth as well, also we know that the orbital period for Earth is 365 days. So the R is calculated as given below.
Hence we can conclude that the distance of the earth from the sun is .
To know more about Kepler's third law, follow the link given below.
Answer:
Explanation:
What is said is that the meter fell d=18.3cm=0.183m under the action of gravity. We can use the formula for accelerated motion:
Since it departed from rest it will mean that:
So our time will be:
Which for our values is: