Answer: 3.26 light years
Explanation:
Each star has a parallax of one arcsecond at a distance of one parsec, which is equivalent to 3.26 light years.
so the parallax of 1 arcsecond will be at a distance of <em>1/1 × 3.26 light years</em>
Answer:
7.77×10^-11coulombs
Explanation:
Firstly, we will calculate the capacitance of the capacitor (C) which is given mathematically as;
C =κε0A/d where;
κ is the dielectric constant= 3.
ε0 is the permittivity of free space = 8.85 × 10^−12 C²/Nm²
d is the distance between the plates = 1.00mm = 0.001m
A is the area = 4.3cm×4.6cm = 0.043m×0.046m
A = 0.001978m²
C=3.7× 8.85×10^-12×0.001978/0.001
C = 6.48×10^-11Farads
The charge on the capacitor when connected to 1.2V battery is gotten by using the formula;
Q = CV where
C is the capacitance of the capacitor
V is the voltage across the capacitor
Q = 6.48×10^-11×1.2
Q = 7.77×10^-11Coulombs
Answer:
4, 7, 4, 6
Explanation:
The law of conservation of mass states that in every chemical reaction, the mass of the reactant must be equal to the mass of the products: this means that the number of atoms of each element must be equal in the reactants and in the products.
If we choose the coefficients in this way:
4, 7, 4, 6
We see that the reaction becomes:
And we can verify that the number of atoms for each element in the reactants is equal to the product:
- Nitrogen (N): 4 atoms on the left, and 4 on the right
- Oxygen (O): 7 x 2 = 14 atoms on the left, 4 x 2 + 6 = 14 atoms on the right
- Hydrogen (H): 4 x 3 = 12 atoms on the left, 6 x 2 = 12 atoms on the right
C is not the right answer to the question but d is the answer for your question
I'd say A. It'd be the most practical. Usually, measuring objects like this, you put it in the labeled beaker with water and measure how much the water rises. The balance is for the mass.