Explanation:
Correct option is
B
1m/s
2
in the given question we have
u=36 km/hr =36×
18
5
m/s=10m/s
v= 72 km/hr=72×
18
5
m/s=20m/s
t=10 s
a=?
we know the formula
v= u +at
20 = 10+ a 10
20-10 =10 a
10 = 10 a
a = 1 m/s
2
Answer:
F1 = k Q1 * Q2 / R^2
If Q1 is doubled then F2 = 2 F1 = 72 units
Answer:
They are in free-fall motion.
Explanation:
The Earth orbiting astronauts are falling at an acceleration that is the same or greater than the acceleration due to gravity i.e., 9.81 m/s². If you are continuously falling at this rate then you will feel weightless.
This same effect is felt while going down in an elevator. When you down in an elevator you feel that you are lighter and feel that something is pushing you up. Earth-orbiting astronauts feel the same effect but the accelration is greater hence they feel weightless.
Answer:
the sympathetic division and the parasympathetic division.
Explanation:
These two divisions have antagonistic (opposing) effects on the internal organs they innervate (send nerves to = act on).
hope this helps :)
D. It can be seen by the eye. I took this test. Hope this helped!
