Answer:
<h2>Refer the attachment for answer and explanation please</h2>
Explanation:
This might surely help you ☺️❤️
Answer:
Explanation:
Given that,
The refractive index of benzene is 2.419
We need to find the speed of light in benzene. The ratio of speed of light in vacuum to the speed of light in the medium equals the refractive index. So,
So, the speed of light in bezene is 
.
Answer:
Acceleration of train needed to avoid collision = -0.9 m/s²
Explanation:
Here both trains are similar with 1000 m apart with same speed.
So one train has to move 500 m before stopping just to avoid collision.
We have
Initial velocity, u = 30 m/s
Acceleration , a = ?
Displacement, s = 500 m
Final velocity, v = 0 m/s
We have equation of motion v²= u² + 2as
Substituting
v²= u² + 2as
0²= 30² + 2 x a x 500
a = -0.9 m/s²
Acceleration of train needed to avoid collision = -0.9 m/s²
Given data
efficiency (η) = 65 %
= 0.65
Machine provides (Work done by the machine) = 1300 × 50
= 65000 J
efficiency (η) = work done by the machine ÷ work supplied to the machine
0.65 = 65000 ÷ Input work
Input work = 100000 J
= 100 KJ
First let us compute for the total growth in population.
Growth = 155 million * 0.01
Growth = 1.55 million
Since there are 12 months in a year, therefore the new
jobs every month should be:
new jobs per month = 1.55 million / 12
<span>new jobs per month = 0.129 million = 129,167 </span>
