Answer:
Number of significant figures=3
Explanation:
15.0/124=0.121
In scientific notation 1.21× 10-1
or,
1.21e-1
V = (1 / p) × p0×V0 = (1 / 219kPa) × 117kPa × 3L = 1.06L
Please note that magnetic field lines do not cross. its hard to draw on phone
Answer:
Explanation:
from snells law
sin(i)/sin(r) = refractive index
r = 90°
sin(i) = sin90°x 1.6
sin(i) = 1 x 1.6
angle of incidence = arcsin(1.6)
since sin90° = 1
hence,
angle of incidence = 36.86°
The force advantage of the direction changing pulley shown is 1. The correct option is b.
<h3>What is force advantage?</h3>
Force is the mechanical physical quantity. The force advantage is equivalent to the mechanical advantage equal to the ratio of output to the input force.
In the single fixed pulley, there is only one rope segment that pulls up on the load, so,
The force advantage is
F.A = 50 N / 50 N = 1
Thus, the force advantage of the direction changing pulley shown is 1. The correct option is b.
Learn more about force advantage.
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