Thunderclouds typically develop voltage differences of about 1×108V. Given that an electric field of 3×106V/m is required to pro
1 answer:
You might be interested in
Answer: the force increases as the angle increases
Explanation:
If we assume the incline plane is frictionless, the only force acting on an object on the incline plane is the force of gravity:
where m is the mass and g the acceleration due to gravity.
However, the actual force that makes the object sliding down along the incline is not the gravity itself, but the component of the force of gravity parallel to the surface of the incline, which is given by
where is the angle of the incline.
Therefore, we see that as the angle of the incline increases, the force on the object increases.
Answer:
5.05 m
Explanation:
length of stick (L) = 1 m
distance from the top of the stick to the ground (d) = 2.07 m
time taken for corn to travel the length of the stick (t) = 0.121 s
acceleration due to gravity (a) = 9.8 m/s^{2}
we can get the distance in four stages.
- Finding the velocity the corn was moving at from
where s = length of stick, t = time, a = acceleration due to gravity
1 = 0.121u + (0.5 x 9.8 x 0.121 x 0.121)
1 = 0.121v + 0.0717
1 - 0.0717 = 0.121v
v = 7.67 m/s
- Using the velocity above to find the time it took for the corn to fall to the top of the stick from the formula v = u + at' where:
v = final velocity = 7.67 m/s
u = initial velocity = 0 m/s since it was initially at rest
a = acceleration due to gravity
t' = time taken to fall to the top of the stick
7.67 = 0 + (9.8 x t')
t' = 7.67 / 9.8 = 0.78 s
- using the time above to find the distance between the branch the corn falls from and the top of the stick using
where:
s = distance
v = initial velocity = 0 m/s since it was initially at rest
t = time = 0.78 s
a = acceleration due to gravity = 9.8
s = 0 + (0.5 x 9.8 x 0.78 x 0.78)
s = 2.98 m
- Add the distance between the branch the corn falls from and the top of the stick and the distance from the top of the stick to the ground.
2.98 + 2.07 = 5.05 m