Answer:
13 m
Explanation:
It is given that :
I got a haircut sitting at a place having two parallel mirrors at a distance = 6.5 m apart
My head is at a distance of 2 m from the nearer mirror.
Now the light from the back of my head must go to (6.5 - 2) = 4.5 m to the back mirror.
Then it must go to 6.5 m to the front mirror and 2 m from the front mirror to my eyes.
So in order to see the back of my head, it will be = 6.5 + 2 + 4.5 = 13 m away.
The given terms are :
Current = 0.8 Amperes
Time = 3 minutes = 3 × 60 = 180 seconds
we know that,
now, let's solve for charge (q) :
Total Charge (q) = 144 Coulombs
Call the applied force 'A'. (Clever ?)
The forces on the cart are 'A' forward and 15 N backward.
The net force on the art is (A-15) forward.
F = m a
Net forward force = (mass of the cart) x (its forward acceleration)
(A - 15) = (16.5) x (2.31)
A - 15 = 38.115
Add 15 to each side:
<u>A = 53.115 newtons</u>
Djdjsbwjwwjwnsjsnssjsjsnshshsjsbshssbsbsbsbsb
For a sound wave traveling through air, the vibrations of the particles are best described as longitudinal. Longitudinal waves are waves in which the motion of the individual particles of the medium is in a direction that is parallel to the direction of energy transport. They move the same direction as the wave.
