New Zealand hornworts and general information on them. ... in the top of the plant and remain attached to it and continue to grow throughout its life. ... are that the spaces between the cells are filled with mucilage rather then air chambers
Answer:
a sound wave is an electromagnetic wave
Answer:
The correct answer is B
Explanation:
To calculate the acceleration we must use Newton's second law
F = m a
a = F / m
To calculate the force we use the defined pressure and the radiation pressure for an absorbent surface
P = I / c absorbent surface
P = F / A
F / A = I / c
F = I A / c
The area of area of a circle is
A = π r²
We replace
F = I π r² / c
Let's calculate
F = 8.0 10⁻³ π (1.0 10⁻⁶)²/3 10⁸
F = 8.375 10⁻²³ N
Density is
ρ = m / V
m = ρ V
m = ρ (4/3 π r³)
m = 4500 (4/3 π (1 10⁻⁶)³)
m = 1,885 10⁻¹⁴ kg
Let's calculate the acceleration
a = 8.375 10⁻²³ / 1.885 10⁻¹⁴
a = 4.44 10⁻⁹ m/s² absorbent surface
The correct answer is B
B
Adding more words because it won't let me submit with only one character
Answer:
Period of oscillation, T = 2 sec
Explanation:
It is given that,
Mass of the object, m = 5 kg
Spring constant of the spring, k = 50 N/m
This object is hanging from a coiled spring. We need to find the period of oscillation of the spring. The time period of oscillation of the spring is given by :
T = 1.98 sec
or
T = 2 sec
So, the period of oscillation is about 2 seconds. Hence, this is the required solution.
