Required formula is
where L= length of a stick when it is moving with velocity v
L0=length of that stick when it is at rest
c= velocity of light
The answer & explanation for this question is given in the attachment below.
The "gas" is ionized and may correctly be described as a fourth state of matter - a plasma - rather than a gas. Both a gas and a plasma would expand indefinitely if not contained somehow but the ionized particles of a plasma could be controlled electromagnetically whereas a gas could not. A typical plasma is contained in an illuminated neon sign.
Answer:
e
Explanation:
An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.
<h2>
The car tire makes 149 revolutions before coming to stop.</h2>
Explanation:
a) We have equation of motion v² = u² + 2as
Initial velocity, u = 32.4 m/s
Acceleration, a = -1.70 m/s²
Final velocity, v = 0 m/s
Substituting
v² = u² + 2as
0² = 32.4² + 2 x -1.70 x s
s = 308.75 m
Distance traveled before stopping is 308.75 m
Radius of tire = 0.330 m
Circumference of tire = 2πx 0.33 = 2.07 m
1 revolution = 2.07 m
The car tire makes 149 revolutions before coming to stop.