Chose the independent variable on this graph a) only temperature (c°) is the independent variable b) only flow time (s) is the independent variable c) both flow times (s) and temperature (°c) are the independent variable
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Ответ:
The independent variable is seing as the variable that causes the variation of the other variable.
Independent variable is usually represented on the horizontal axis, and dependent variable is usually represented on the vertical axis.
From the graph and your reasoning you can infere that the temperature changes arbitrarily and it determines the flow time.
That means that the temperature is the independent variable and the flow time is the dependent variable.
Therefore, the answer is the option A) only temperature is the independent variable.
Ответ:
m₁ = mass of first ocean liner = 10 x 10⁶ kg
m₂ = mass of second ocean liner = 20 x 10⁶ kg
r = distance between two ocean liners = ?
F = force between the two ocean liners = 1.0 N
G = gravitational constant = 6.67 x 10⁻¹¹ Nm²/kg²
Gravitational force of attraction between the two ocean liners is given as
F = G m₁ m₂/r²
inserting the values
1.0 = (6.67 x 10⁻¹¹) (10 x 10⁶) (20 x 10⁶)/r²
r² = (6.67 x 10⁻¹¹) (10 x 10⁶) (20 x 10⁶)
r² = (6.67 x 10⁻¹¹) (200 x 10¹²)
r² = 13340
r = √13340
r = 115.5 m