D= M÷V is the equation you're looking for. It means Density = Mass ÷ Volume
Answer:
3.921*10^19 electrons
Explanation:
To find the number of electron that trough the car battery you first calculate the current by using the following formula, which relates the power with the voltage:
(1)
P: power of both headlights = 2(37.7W) = 75.4 W
I: current = ?
V: voltage of the battery = 12.0 V
You solve the equation (1) for I:
Next, you use the equivalence 1C = 6.241*10^18 electrons:
The number of electrons that cross the battery per second is 3.921*10^19 electrons
Answer: the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm
Explanation:
Given that;
diameter of the mirror d = 1.7 m
height h = 180 km = 180 × 10³ m
wavelength λ = 500 nm = 5 × 10⁻⁹ m
Now Angular separation from the peak of the central maximum is expressed as;
sin∅= 1.22 λ / d
sin∅ = (1.22 × 5 × 10⁻⁹) / 1.7
sin∅ = 3.588 × 10⁻⁷
we know that;
sin∅ = object separation / distance from telescope
object separation =
sin∅ × distance from telescope
object separation = 3.588 × 10⁻⁷ × 180 × 10³
object separation =6.45 × 10⁻² m
then we convert to centimeter
object separation = 6.45 cm
Therefore the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm
Answer:
it is accelerating 14 m/s
Explanation:
The answer would be (A) Protons
