Answer:
1.147 %
Explanation:
= Density of mercury =
g = Acceleration due to gravity = 9.81 m/s²
h = Height of mercury = 8.69 m
Standard atmospheric pressure =
6.55 mmHg converting to Pa
Dividing air pressure by the above value
The fraction of atmospheric pressure is 1.147 %
Answer:
-10 m/s²
Explanation:
Average acceleration is change in velocity over change in time.
a = (v − v₀) / (t − t₀)
a = (0 m/s − 20 m/s) / (2 s − 0 s)
a = -10 m/s²
Option B (electron) is negatively charged
As the radius increases the circumference increases.
The problem can be solve using the formula
τ=r F sin(θ)
Where
τ is the torque,
r is the distance from where the pivot is to where the force
is,
F is the force exerted, and
θ is the angle between the force and radius
τ=(0.15m) (150N) sin(30) = 11.25 Nm
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