<span>If the temperature increases in a sample of gas at constant volume, then its pressure increases. The increase in temperature makes the molecule hit the walls of the container faster. The correct option among all the options that are given in the question is the third option or option "c". I hope the answer helps you.</span>
Answer:
Explanation:
Initial velocity in air, Vo = 0 m/s
Final velocity in air, Vi = 16 m/s
Initial velocity in water, Vf = 3 m/s
Total distance, S = 127 m
Total time, T = 12 s
Using the equation of motion,
(V - U)t = s
S = s1 + s2
Let T = t1 + t2
127 = (16 × t1) + 3 × (12 - t1)
127 = 16t1 + 36 - 3t1
91 = 13t1
t1 = 91/13
= 7 seconds
Time taken in air, t1 = 7 seconds
t2 = 12 - 7
= 5 seconds.
Answer:
x = 2.26 miles from the shore P i.e. point at which boat be landed.
Explanation:
x is the distance from point of landing i.e R and P
So, she cover a distance miles
She rows with a speed of 3 miles per hour.
So, time taken for rowing
She walks a distance = RQ = 14-x
She walks with a speed of 4 miles per hour.
So, time taken by the woman for walking \
Thus, total time taken
For total time to be least, T ' = 0
T '
x = 2.26 miles from the shore P
Answer:
IMA = 2
Explanation:
Given the following data;
Resistance gear = 54 teeth
Effort gear = 23 teeth
To find the ideal mechanical advantage (IMA);
IMA = number of teeth on the resistance gear/number of teeth on the effort gear
Substituting into the equation, we have;
IMA = 54/23
IMA = 2.35 ≈ 2
Therefore, the ideal mechanical advantage (IMA) of this two-gear system is 2.