Answer:
(a) The Work need to place spacecraft into low orbit is
(b) Additional Work need to place the spacecraft far away from the earth is
.
(c) From part(a) and part(b) we observe the Both quantities are equal.
Explanation:
Explanation is in the following attachments
Answer: A physical change can be a change in size, shape, or color.
Explanation:
One type of physical change is a phase change. Consider water for example, if liquid water evaporated into a vapor, a phase change occurred. A phase change is a type of physical change. The difference between a physical change and chemical change is that a physical change doesn't change the substance identity. A chemical change can however change the identity of the substance.
Answer:
Option D
Explanation:
Taking 2020 unit test for edu right now.
Answer:
first order date and most recent order date
Explanation:
it was switched. column 5 should be most recent order date because it's 2020 while column 6 should be first order date because it was in 2019
