In astronomy and geography, a direction or plane is said to be horizontal if it is perpendicular to the vertical direction. In mathematics, anything parallel to the horizon is called horizontal. Because vertical is the opposite of horizontal, anything that makes a 90-degree angle (right angle) with the horizontal or the horizon is called vertical. So, the horizontal line is one that runs across from left to right.
Answer:
0.000230144 N
Explanation:
n = Number of electrons =
q = Charge of electron =
k = Coulomb constant =
r = Distance between obects = 1 m
The force would be
The force would be 0.000230144 N
Answer:
the intensity of the light after passing through the two polarizing filters is 4.11 units
Explanation:
Given the data in the question;
the intensity of an unpolarized light; I₀ = 25.0 units
when the unpolarized light passes through the first polarizer, its intensity reduces to half of its initial value;
⇒ I₁ = I₀/2 = 25/2 = 12.5 units
the angle between the transmission axes of two polarizers is;
∅ = 55° - 0° = 55°
The intensity of the light after passing through two polarizing filters will be;
I₂ = I₁cos²∅
we substitute
I₂ = 12.5 × cos²(55)
I₂ = 12.5 × 0.3289899
I₂ = 4.11 units
Therefore, the intensity of the light after passing through the two polarizing filters is 4.11 units
Answer:
(a)
(b) 43.45 m
(c) 12.58 m
Explanation:
By applying newton's law on car,
where is the friction force and m is mass, a is acceleration
a = acceleration of car
(b)
From kinematic equation
but u=0 hence
and making s the subject
(c
From the kinematic equation