Answer:
The mass of the meter stick is 
Explanation:
Here since the meter stick is in equilibrium position its net torque and net force should be equal to zero
Since at the begging the meter stick is balanced at center of the meter stick that means its center of mass should be present at 
Now lets consider the later case where stick is balanced by two 5.12 g coins .
Here torque due to two coins = 
Torque due to weight of meter stick =
= 
where m = mass of the meter stick
Here
.
Upon equating we will be getting mass of the meter stick =
Answer:
<em>Gravitational</em><em> force</em>
Explanation:
............
Answer:
0.01774 lux
Explanation:
= Polarized light intensity = 36.8 lux
= Angle
Through first filter

Through second filter

intensity of transmitted light is 0.01774 lux
Answer:
Air kerma
Explanation:
The acronym for the word 'kerma' is
. It is the sum or the total of the kinetic energies of the
that is liberated by the uncharged ionizing radiation in the small sample of a matter, and is divided by the mass of that sample.
It is sometimes used for expressing the radiation concentration that is delivered to a point.
It is used to specify the intensity of the x-rays for any given point in the air at some known distance form the local spot. The total air kerma can be monitored in the fluoroscopic procedure.
Answer:
Explanation:
Distance travelled by sound in going to target( insect ) and returning back = 2d ,d is distance of target .
time t = .06 s
speed = distance / time
344.9 = 2d / .06
d = 10.35 m