What causes the ballon to fly away is the air pushing out of the balloon also tied in with air pressure
Answer:
Double the first charge to 2Q
Explanation:
F = C q1 q2 / r^2 multiply both sides by 2 ( to double the force)
2F = C * 2 (q1)(q2) / r^2 <==== so doubling either q will double the force
Answer:
θ = 33°
Explanation:
Here, we can use the formula for the total time of flight of a projectile to calculate the launch angle of frog:
where,
θ = launch angle = ?
T = Total time of flight = 0.6 s
g = acceleration due to gravity = 9.81 m/s²
u = launch speed = 5.4 m/s
Therefore,
<u>θ = 33°</u>
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Acceleration due to gravity on the surface of radius R = GM/R^2 = 9.8 m/s^2
weight at surface of earth = mg = 78 x 9.8 = 764.4 N
acceleration due to gravity at 6R = GM/(6R)^2
= GM/R^2 /36
=9.8/36 = 0.27 m/s^2
weight on spacecraft = 78 x 0.27 = 21.2 N