This force is called an electrostatic force. To solve for the value of the electrostatic force. Using Coulumbs Law:
F = k * abs (Q1 * Q2) / r^2
where:
k = coulumb's constant, 8.988x10^9 N *m^2/ C^2
Q1 = first charge
Q2 = second charge
r = distance between charges
8.8x10^4 = 8.988x10^9 * abs((-7.5x10^-9) * (11x10^-9)) / r^2
solve for r
It’d be B: severe depressive symptoms
Answer:
m = 5.27e18 kg
Explanation:
The pressure of a fluid is the weigth of a column of that fluid over base of that column.
The weight of the column is its mass multiplied by the acceleration of gravity. The acceleration of gravity varies with height, however the variation is small and can be ignored, consifering the acceleration of gravity constant.
So:
If we consider the entirety of the atmosphere as a single column the base would be the surface of Earth. Approximating Earth as a sphere:
Now, we can obtain the mass of the atmosphere:
Answer:
Mass, m = 27g
Explanation:
<u>Given the following data;</u>
Initial Temperature, T1 = 25°C
Final temperature, T2 = 50°C
Quantity of heat = 2825J
Specific heat capacity of water = 4.184
Heat capacity is given by the formula;
Where,
- Q represents the heat capacity.
- m represents the mass of an object.
- c represents the specific heat capacity of water.
- dt represents the change in temperature.
Making mass, m the subject of formula, we have;
Change in temperature, dt = T2 - T1
Change in temperature, dt = 50-25 = 25°C
Substituting into the equation, we have;
Mass, m = 27g
Therefore, the mass of water that can be added is 27 grams.