Nope I don't think so
skin has the most cells in our body
B.
the first species that colonize new or undisturbed land
Answer:
b)
Explanation:
Let the amplitude of SHM is given as A
so the total energy of SHM is given as
now we know that
a)
kinetic energy is given as
here
so now we have
now its fraction with respect to total energy is given as
b)
Potential energy is given as
so we have
so fraction of energy is given as
Answer: 4.2 m
Explanation:
The time taken by the tennis ball to cover vertical displacement 1.30 m would be the same time in which ball would cover horizontal distance.
Initial velocity of the ball, u = 8.08 m/s in horizontal direction.
Initial velocity in the vertical direction is 0.
consider upward direction as positive and downward direction as negative. The ball free falls under gravity in the vertical direction.
Using the second equation of motion,
y = u t + 0.5 at²
⇒-1.30 m = 0 + 0.5 ×(-9.8m/s²) t²
⇒t = 0.52 s
There is no external force acting in the horizontal direction, thus horizontal distance covered is:
s = u t ⇒ s = 8.08 m/s × 0.52 s = 4.2 m
Thus, the tennis ball lands 4.2 m far away.
