Answer:1.513 rps
Explanation:
Given
Diameter of cylindrical space
When the station rotates it creates centripetal acceleration which is given by
Now it must create the effect of gravity so
and
Thus
PLEASE HELP When astronauts eliminate waste in space, which is likely to be used? [A] showers and faucets, spraying hot water..
1 answer:
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Answer:
Mass of the cube is 23350 grams.
Explanation:
It is given that,
Side of cube, a = 15 cm = 0.15 m
Density of the cube,
We need to find its mass. It can be calculated using the formula of density as :
, V is the volume of cube
m = 23.35 kg
or
m = 23350 grams
So, the mass of the metal cube is 23350 grams. Hence, this is the required solution.
Answer:
The distance traveled is 109.58 m
Explanation:
The Speed of sound in air = 344 m/s
Let the time in which the dime dropped by the man reach an impact in the well = t₁
Let the time in which the sound travel from the well to the man = t₂
Then
1/2× 10 × t₁² = 344 × t₂ which gives;
5 × t₁² = 344 × t₂.........................(1)
Also the total time before the man heard the dime = t₁ + t₂ = 5
Therefore;
t₂ = 5 - t₁
Substituting the value of t₂ in equation (1), we have;
5 × t₁² = 344 × (5 - t₁)
5·t₁² + 344·t₁ - 1720 = 0
Using the quadratic formula, we have;
Which gives;
t₁ = 4.68 s or -73.48 s
Therefore, with the positive value for t₁ = 4.68 s, we have
The distance = 1/2× 10 × 4.68² = 109.58 m
The distance traveled = 109.58 m.