<h2>
Entire trip takes 1.22 seconds.</h2>
Explanation:
We have equation of motion s = ut + 0.5 at²
Initial velocity, u = 0 m/s
Acceleration, a = 9.81 m/s²
Time, t = 0.866 s
Substituting
s = ut + 0.5 at²
s = 0 x 0.866 + 0.5 x 9.81 x 0.866²
s = 3.68 m
Halfway is 3.68 m
Total height = 2 x 3.68 = 7.36 m
We have equation of motion s = ut + 0.5 at²
Initial velocity, u = 0 m/s
Acceleration, a = 9.81 m/s²
Time, t = ?
Displacement, s = 7.36 m
Substituting
s = ut + 0.5 at²
7.36 = 0 x t + 0.5 x 9.81 x t²
t = 1.22 s
Entire trip takes 1.22 seconds.
If the capacitor is connected across a battery,the voltage will stay constant at the battery voltage.
Capacitance C=Q/V1−V2 (V1−V2 is the potential difference between the plates of the plates of the capacitor)
when plates are connected by a wire than V1=V2 so V1−V2=0
C=Q/V1-V2 =Q/0 = Infinite Hence, C=Infinite
If the capacitor is charged and disconnected,the voltage will rise.Assume the capacitor holds charge Q then Q= CV or V=Q/C
separating the plates reduces C,so if Q remains constant V must be increase proportionally.
The capacitance of a parallel plate capacitor is proportional to the plate area and inversely proportional to plate-plate spacing. So, doubling the area doubles the capacitance. And, halving the distance doubles it again. So the capacitance of the new capacitor will be 4-times larger then the original.
learn more about capacitance from here: brainly.com/question/28197380
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Answer:
Meter
Explanation:
I'd say meters, cause it's the SI unit of length,
which is a Derived Quantity.
Answer:
Velocity between points A and B will be 0.2344 m/s
Answer:
Explanation:
For elestic collision
v₁ =
[/tex]
Here u₁ = 0 , u₂ = 22 m/s , m₁ = 77 kg , m₂ = .15 kg , v₁ and v₂ are velocity of goalie and puck after the collision.
v₁ = 0 + ( 2 x .15 x22 )/ 77.15
= .085 m / s
Velocity of goalie will be .085 m/s in the direction of original velocity of ball before collision.
v₂ = (.15 - 77)x 22 / 77.15 +0
= - 21.91 m /s
=Velocity of puck will be - 21.91 m /s in the direction opposite to original velocity of ball before collision.