How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory
1 answer:
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When a satellite is revolving into the orbit around a planet then we can say
net centripetal force on the satellite is due to gravitational attraction force of the planet, so we will have
now we can say that kinetic energy of satellite is given as
also we know that since satellite is in gravitational field of the planet so here it must have some gravitational potential energy in it
so we will have
so we can say that energy from the fuel is converted into kinetic energy and gravitational potential energy of the satellite
Answer:
It would take time for the capacitor to discharge from
to
.
It would take time for the capacitor to discharge from
to
.
Note that , and that
.
Explanation:
In an RC circuit, a capacitor is connected directly to a resistor. Let the time constant of this circuit is , and the initial charge of the capacitor be
. Then at time
, the charge stored in the capacitor would be:
.
.
Apply the equation :
.
The goal is to solve for in terms of
. Rearrange the equation:
.
Take the natural logarithm of both sides:
.
.
.
.
Apply the equation :
.
The goal is to solve for in terms of
. Rearrange the equation:
.
Take the natural logarithm of both sides:
.
.
.