Lexy used the formula shown to calculate the force of gravity on a space shuttle.
1 answer:
The space shuttle is the transportation device used to travel from earth to space.It is used to transport people to orbiting spacecraft. 3×10⁸ is the mass of the space shuttle.
<h3>What is space shuttle?</h3>The space shuttle is the transportation device used to travel from earth to space. it is a type partially reusable rocket-launched vehicle to go into orbit around Earth.
It is used to transport people to orbiting spacecraft.
As we know the mass of the Earth is 5.972 × 10 kg so that the earth's mass and the mass of the shuttle must be more than the figure .The total must be more than the mass of the earth.
But the total value is less. Hence the given mass is the mass of space shuttle.
To learn more about the space shuttle refer to the link;
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Answer:
Explanation:
The phospholipid bilayer is also known as the cell membrane. It covers cells and regulates the transport of substances. Certain ones can pass and others cannot, depending on certain factors like size and polarity.
Smaller substances tend to diffuse or move across the membrane quite easily. However, larger molecules have a much harder time. Many depend on special proteins embedded in the membrane. These are called transport proteins and they form a channel so large molecules can still move in or out of the cell.
So, salt, water, and fats do not contribute to the movement of larger molecules, but <u>channel or transport proteins do and choice A is correct. </u>