Answer:
A .endoplasmic reticulum
Explanation:
Endoplasmic reticulum is the part of the plant cell that is responsible for the synthesis of proteins.
The average speed would simply be the ratio of distance
and time. That is:
average speed = distance / time
in km/hr
average speed = 406 km / 7 hr = 58 km / hr
in m/s
<span>average speed = (58 km / hr) * (1000 m / 1 km) * (1 hr /
3600 s) = 16.11 m/s</span>
Answer:
The answer to your question is a = 0.25 m/s²
Explanation:
Data
mass = m = 400 kg
Force = F = 100 N
acceleration = a = ? m/s²
Process
To solve this problem use Newton's second law that states that the force applied to an object is directly proportional to the mass of the body times its acceleration.
Formula
F = ma
solve for a
a =
Substitution
Simplification and result
a = 0.25 m/s²
Let u = the vertical speed at launch, m/s
g = 9.8 m/s², acceleration due to gravity.
Part (a)
After 2.4 s, the vertical speed is 10 m/s.
Therefore
(10 m/s) = (v ft/s) - (9.8 m/s²)*(2.4 s)
v = 10 + 9.8*2.4 = 33.52 m/s
Answer: 33.52 m/s upward
Part (b)
After 5.1 s, the vertical speed is
(33.52 m/s) - (9.8 m/s²)*(5.1 s) = -16.46 m/s.
This means that the rock reached the maximum height and began falling downward.
Answer: 16.46 m/s downward
<h2>
Angular acceleration is 80 rad/s²
</h2><h2>
Number of revolutions undergone is 1.02</h2>
Explanation:
We have equation of motion v = u + at
Initial angular velocity, u = 0 rad/s
Final angular velocity, v = 32 rad/s
Time, t = 0.40 s
Substituting
v = u + at
32 = 0 + a x 0.40
a = 80 rad/s²
Angular acceleration is 80 rad/s²
We have equation of motion s = ut + 0.5 at²
Initial angular velocity, u = 0 rad/s
Angular acceleration, a = 80 rad/s²
Time, t = 0.4 s
Substituting
s = ut + 0.5 at²
s = 0 x 0.4 + 0.5 x 80 x 0.4²
s = 6.4 rad
Angular displacement = 6.4 rad
Number of revolutions undergone is 1.02