Answer:
The instantaneous speed of the object after the first five seconds is 12.5 m/s.
(C) is correct option.
Explanation:
Given that,
An object starts at rest. Its acceleration over 30 seconds.
We need to calculate the instantaneous speed of the object after the first five seconds
We know that,
Area under the acceleration -time graph gives speed.
According to figure,
Hence, The instantaneous speed of the object after the first five seconds is 12.5 m/s.
Here, as the charge is uniformly distributed in the sphere, we will consider s as an area of the sphere which is, s=4πr2 and r is radius of the gaussian surface shown in the figure above. From this, it can be seen that
Answer:
The answer is A
Explanation:
Someone shouting to you from across a room
Answer:
Explanation:
From the question we are told that
Distance of eyes from the top of hat 
Distance of eyes from buckle 
Generally position of mirror relative eyes x is mathematically given as
Generally the height of the mirror h is mathematically given as
