I think it would be A, because it is moving the slowest then. But get a second opinion.
Answer:
Height, H = 25.04 meters
Explanation:
Initially the ball is at rest, u = 0
Time taken to fall to the ground, t = 2.261 s
Let H is the height from which the ball is released. It can be calculated using the second equation of motion as :
Here, a = g
H = 25.04 meters
So, the ball is released form a height of 25.04 meters. Hence, this is the required solution.
Answer:
The sphere's volume charge density is 2.58 μC/m³.
Explanation:
Given that,
Radius of sphere R= 8.40 cm
Electric field
Distance r= 16.8 cm
We need to calculate the sphere's volume charge density
Using Gauss's law
Put the value into the formula
Hence, The sphere's volume charge density is 2.58 μC/m³.
Answer:
150 m
Explanation:
velocity = 22m/s
time = 6.8 s
distance = velocity × time
= 22 × 6.8
= 149.6
≈ 150 m
Q 16: Answer is D, because there is little to no friction in space, so ball will move at a constant velocity.