Velocity = Distance / time taken
= 110 m /72s
1.52 ms⁻¹
Answer:
The speed is the same as long as the reflection is regular.
Explanation:
This is because in regular reflection, the angle of incidence is equal to the angle of reflection in accordance with the second law of reflection.
Since speed of light depends on the angle of the light ray it makes with the reflecting surface, the speed is the same
Answer:
The absolute potential 4.0 m away from the same point charge is -50 V.
(A) is correct option.
Explanation:
Given that,
Distance = 2.0 m
Potential = -100 V
Absolute potential = 4.0 m
We need to calculate the charge
Using formula of potential
Where, V = potential
q = charge
r = distance
Put the value into the formula
We need to calculate the potential
Using formula of potential
Hence, The absolute potential 4.0 m away from the same point charge is -50 V.
Explanation:
to go fast from to one place to another
Answer:
<em>3</em><em>0</em><em>.</em><em>6</em><em>3</em>
Explanation:
v=2x/t
<em>t=</em><em>2</em><em>x</em><em>/</em><em>v</em>
<em>t=</em><em>2</em><em>*</em><em>1</em><em>2</em><em>2</em><em>0</em><em>.</em><em>5</em><em>/</em><em>8</em><em>.</em><em>0</em>
<em>t=</em><em>3</em><em>0</em><em>.</em><em>6</em><em>3</em><em>/</em><em>/</em>