Answer:
Explanation: Two pith ball will repel each other . they will remain balaced due to tension in the spring whose one component balances the weight and the other balances the repulsive force on each.
The gravitational force will be balanced by T cos 27.33 and the electrostatic repulsive force will be balanced by T sin27.33
So
Fg =T cos 27.33
= .55 X .888
= .49 N
Fq = T sin27.33
=.55 x .459
= .25 N.
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Answer:
Explanation:
We want to find the initial speed of the ball.
To do this, we have to apply the formula for the time of flight of a projectile:
where θ = angle of flight
g = acceleration due to gravity
v0 = initial speed
Therefore, substituting the given values into the formula, we have that:
⇒ 2 ×
×0.8910= 9.8 × 4.2
⇒
That is the initial speed of the ball.
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Answer:
exercise can lower levels
Answer:
Hey Again!
Your answer is 2450 cm3
!
Explanation:
Volume of cylinder = V=πr2h
2.45L = 2450mL
1mL = 1 cm cubed
2450mL = 2450 cm cubed
*substitute values in*
I HOPE THIS HELPS YOU!!
The law looks at the forces created between two charged objects. As distance increases, the forces and electric fields decrease. Positive and negative charges like to move towards each other. Similar charges such as two positive or two negative push away from each other.
