The second one is the answer
<h2>
Magnitude of force doubles.</h2>
Explanation:
Force between two charges is given by
where q₁ and q₂ are charges and r is the distance between them.
Here one charge is doubled with keeping all others same.
q₁ = 2 q₁
We have
Magnitude of force doubles.
1000 m/s
100m x 10hz=1000m/s
That change in pitch can be described by the math
of the Doppler effect. But that doesn't 'explain' it.
Answer:
To drive at high speed around an unbanked horizontal curve on the earth.
Explanation:
Garvitational pull on on eart is 6 times more than on the moon. On. Earth, the vehicle will have more grip on the surface due to its weight. This grip will reduce its tendency to skid off the horizontal curve when compared to driving in the same unbanked horizontal curve on the moon.