Answer:
0.23 s
Explanation:
First of all, let's find the time constant of the circuit:
where
is the resistance
is the capacitance
Substituting,
The charge on a charging capacitor is given by
(1)
where
is the full charge
we want to find the time t at which the capacitor reaches 90% of the full charge, so the time t at which
Substituting this into eq.(1) we find
The sun creates nuclear energy in it's core and as a byproduct heat is created. It gives this off in the form of heat and radiation.
Bump: Bumping the ball means a player uses their forearms to pass the ball to a teammate or to hit the ball back over the net to the other team. Set: Setting the ball means a player positions the ball in a way that lets a teammate spike it over the net.
Answer:
An unknown galaxy has a large flattened core. Which of the following classifications would best fit this galaxy's description?
Irregular
Spiral
Lens
Elliptical
Explanation:
D.is a universal constant
The speed of any electromagnetic wave in a vacuum is 3.0*10^8 ms⁻¹
