<span>141.6 million mi,and idk what u mean by how</span>
Answer:
u =0.269
Explanation:
To find the coefficient of friction we know the following formula
Where
= Force of Friction
= Coefficient of Friction
= Normal Force
Thus we first find the Normal force (N). Remember that the Normal force is perpendicular to the surface, and is equal to the opposing component of Weight (W). Since the surface here is horizontal, then the Normal force will be equal to the Weight.
Now we find the Force on the spring that caused the extension of 3.25cm or 0.0325m
Where
= Force of Friction
= Force Constant
= extension
Hence
Now to find the coefficient of friction we use the first formula
Constant speed along the inclined surface = 30 m / 4 s = 7.5 m/s
Vertical speed = inclined speed * sin(45) = 7.5 *√2 / 2 = 5.3 m/s
Answer: 5.3 m/s
AnswerAmontons's law. If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. ... If the gas volume is decreased, the container wall area decreases and the molecule-wall collision frequency increases, both of which increase the pressure exerted by the gas (Figure 1).:
Explanation: