The answer for question 2 i guess it’s c
Answer:
Explanation:
Given:
mass of the boat, 
uniform speed of the boat, 
rate of accumulation of water mass in the boat, 
time of observation, 
The mass of the boat after the observed time:
<u>Now using the conservation of momentum:</u>
Matching each space mission with the correct milestone
- First animal in space ____________ Sputnik 2
- first person in space ____________ Vostok 1
- first person on the moon _________ Apollo 11
- first man-made object in space ____ Sputnik 1
- first American in space __________ Freedom 7
- first space station ______________ Salyut
<h3>Meaning of space mission</h3>
A space mission is a mission that takes an individual, animal, a thing or material out of earth using a spaceship. This mission is always carried out with a desire to find out more about the galaxy earth is a member of and to learn about other planets.
In conclusion, the list above is the accurate Matching of each space mission with the correct milestone.
Learn more about Space mission: brainly.com/question/1298543
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Answer:
its false
Explanation:
because if an leaf floats down from a tree it is not considered an object for a free-fall
