The minimum coefficient of static friction between the pavement and the tires is 0.69.
The given parameters;
- <em>radius of the curve, r = 90 m</em>
- <em>angle of inclination, θ = 10.8⁰</em>
- <em>speed of the car, v = 75 km/h = 20.83 m/s</em>
- <em>mass of the car, m = 1100 kg</em>
The normal force on the car is calculated as follows;
The frictional force between the car and the road is calculated as;
The net force on the car is calculated as follows;
Thus, the minimum coefficient of static friction between the pavement and the tires is 0.69.
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Answer: 9/4n
Explanation:
Let's take T to represent tank
When n litres of fuel was added to tank that was 1/3 full = n + 1/3T
The tank was 7/9T
n+1/3T = 7/9T
n =7/9T - 1/3T
n = 4/9
If a full tank is taken to be 1 = 9/9
Hence, we will have 1 = x × n
1 = x × 4/9
x = 9/4
Hence 9/4 of n = 9/4n
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Laplace's law for the gauge pressure inside a cylindrical membrane is given by
<h3>ΔP = γ/r</h3>
<u>W</u><u>h</u><u>e</u><u>r</u><u>e</u>
γ => surface tension
r => the radius of the cylinder
Note : there is an inverse relation between the pressure and the radius.
Explanation:
first one will be second one
as the charge cancels out
second one will be forth one
as it has possitive charge
Answer:
The wavelength is
The frequency is
Explanation:
From the question we are told that
The slit distance is
The distance from the screen is
The distance between fringes is
Generally the distance between the fringes for a two slit interference is mathematically represented as
=>
substituting values
Generally the frequency of the light is mathematically represented as
where c is the speed of light with values
substituting values