What is the density of mass is equal to 22 grams volume is equal to 22 centimeters cubed
1 answer:
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Answer:
Va is two times greater than Vb
Explanation:
The maximum height reached by the balls are:
Since we are told that Ya = 4Yb:
Simplifying the equation:
Answer:
1. 80,000 Pa
2. 11.3 m/s
3. 12.5 m/s
Explanation:
<u>Question 1</u>
Pressure,
Where h is the height that water is to reach, g is gravitational constant and is the density, in this case, we assume
of pure water as
Assuming
P=8*10*1000=80000 Pa
<u>Question 2</u>
Pressure can also be found by the formula
where v is the velocity
Equating the new formula of pressure to the formula used in question 1 above
Notice that is common hence
Making V the subject of the formula
In this case, h=8-1.6=6.4m and taking g as 10 m/s^{2}
Rounding off to 1 decimal place
v=11.3 m/s
<u>Question 3</u>
As already illustrated
Taking g as 9.8 and h now is 8m
v=12.52198067
Rounding off to 1 decimal place
v=12.5 m/s
Answer:
15.8m/s
Explanation:
This problem can be solved by taking into account the conservation of the momentum. In this case the momentum of the astronaut and the bag of tools must equal the momentum of the astronaut and the bag of tool after the astronaut throws the bag.
Hence, we have
where ma and va are the mass and velocity of the astronaut, mb and vb are the mass and velocity of the bag, after the astronaut throw the bag. The velocity v is the velocity where the astronaut has the bag of tool
By taking into account that the velocity of the astronaut must be zero to keep him near of the space station, we have that vb = 0.
Thus