<em>The first blank is </em><em>robust watermark</em>; a robust watermark will not resist tampering.
<em>The second blank is </em><em>fragile watermark</em><em>;</em> a fragile watermark will resist manipulations of the media.
<h3>What is a watermark?</h3>
A watermark is a faint design made in paper during manufacture that is visible when held against the light and clearly identifies the maker.
The watermark can be of different types depending on the application and they include:
- A robust watermark will not resist tampering.
- A fragile watermark will resist manipulations of the media.
Thus, The first blank is robust watermark; a robust watermark will not resist tampering.
The second blank is fragile watermark; a fragile watermark will resist manipulations of the media.
Learn more about watermark here:.
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Answer:
Living cells can give birth to children and non living cells can't be reproduced.
Explanation:
Answer:
given,
light wavelength = 209 nm
maximum kinetic energy = 3.57 × 10⁻¹⁹ J
using photo electric equation
=
=5.94× 10⁻¹⁹ J
wavelength of light that should be used for double maximum K.E
= 151.94 × 10⁻⁹ m = 151.94 m
Answer:
(a) 5.25 second
(b) 27.5625 rad
Explanation:
fo = 1.003 x 10^2 rev / min = 1.672 rev / sec
ωo = 2 x 3.14 x fo = 2 x 3.14 x 1.672 = 10.5 rad/s
α = - 2 rad/s^2
(a) Let t be the time taken to stop.
ω = 0 rad/s
Use first equation of motion for rotational motion
ω = ωo + α t
0 = 10.5 - 2 x t
t = 5.25 second
(b) Let it rotates by an angle θ in the given time.
use third equation of motion for rotational motion
ω² = ωo² + 2 α θ
0 = 10.5 x 10.5 - 2 x 2 x θ
θ = 27.5625 rad
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