Power = (voltage) x (current)
Divide each side by (voltage):
Current = (power) / (voltage)
I = (75) / 120 =<em> 0.625 Amperes</em> = 625 mA
Answer: It would take 10.16 million years.
Explanation:
Light travels at a speed .
A light-year is the distance that light travels in vacuum in one year.
The Andromeda Galaxy is 2.54 million light-years from the Earth.
This means that
Let's say is the speed of the ship. Then
⇒
So, we have:
⇒
⇒
So, at speed , it would need a time of 10.16 million years.
Answer:
Explanation:
As we know that the gymnast has no external torque on it
so here we can say that angular momentum of the system will be conserved
so here we have
here we know that
Average velocity =
(displacement) / (time for the displacement)
and
(direction of the displacement) .
Displacement =
(distance from the start-point to the end-point)
and
(direction from the start-point to the end-point) .
When Ben is 200 meters from the corner store,
he is (500 - 200) = 300 meters from his house.
His displacement is
300 meters in the direction
from his house to the neighbor .
His average velocity is
(300/910) = 0.33 meters per second, in the
direction from his house to the neighbor .
In the above problem, we need to find mass of the second child, so that the Center of Mass remains at the origin( pivot).
CM= m1r1+m2r2/m1+m2
0= 20*-2+16*r2/20+16
r2= 40/16
r2= +2.5 m