Answer:
0.05773 sec
Explanation:
We know that
time = distance/speed = d/V
for air
t1 = 117/355 = 0.3295 sec
for fresh water
t_2 = 117/1480 = 0.07905 sec
for metal
t_3 = 117/5490 = 0.02131 sec
So as we can see sound will reach through metal hand rail 1st, then through fresh water and then through air
1st = metal hand rail
2nd = fresh water
3rd = air
time difference between 1st and 2nd sound = t_2 - t_3 = 0.07905 - 0.02131 = 0.05773 sec
Answer:
Distance d=8.63m
Explanation:
mass of object m=47.5 kg
Initial velocity vi=0 m/s
Magnitude of force on object F(t)=(17.0 N/s)t
To find
Distance
Solution
The rocket accelerates due to variable force so we apply Newtons second law but the acceleration will not be constant because the force is not constant
We use ax=Fx/m to find acceleration but it must be integrate to find velocity and then the distance that rocket travels
So
Distance d=8.63m
Answer: ok so u have to add the variable interia by the experiment bar to get ur total
Explanation:
There’s nothing to answer to
B: gravity is absent in space