Spectrophotometry is a laboratory technique
that can be performed first to check if there is presence of arsenic mixed in
with Gatorade. In spectrophotometry, arsenic concentration will be measure in a
specific solution by calculating the amount of light absorbed by inorganic
arsenic.
Various analytical reagents are used such as molybdate reagent and variamine blue
as a chromogenic reagent where a violet colored indicates presence of arsenic.
Furthermore,
new analytical reagents has been development and proposed like vanillin-2-
amino nicotinic acid (VANA) and 2, 4-Dihydroxy benzophenone-2-amino thiophenol
(BPBT). These are used for direct non-extractive spectrophotometric determination of arsenic. The reagent
reacts with arsenic in acidic
medium to form light greenish yellow colored.
Answer:
Explanation:
given,
turntable rotate to, θ = 5 rad
time, t = 2.8 s
initial angular speed = 0 rad/s
final angular speed = ?
now, using equation of rotational motion
α = 1.28 rad/s²
now, calculation of angular velocity
hence, the angular velocity at the end is equal to 3.584 rad/s
No, because if the net force were 0, it would either be at rest or moving in constant velocity.
It is the Jupiter from outer space. And the years from 170 light years away from the Earth.
