Answer:
True
True statement:
Because pigment molecules absorb solar energy and thylakoids are pigment molecules
Explanation:
Distance d=1.5×108 km=1.5×1011 m
Mass of the sun, m=2×1030 kg
Mass of the earth, M=6×1024 kg
Force of gravitation, F=G×d2m×M
F=6.7×10−11×(1.5×1011)22×1030×6×1024=3.57×1022 N
The two forces acting on your body are the weight and the normal force
Explanation:
As you sit on your chair in front of the computer, there are 2 forces acting on you:
- The force of gravity, of magnitude
(where m is your mass and
is the acceleration of gravity), acting downward - The normal reaction exerted by the chair on your body, N, acting upward, and balancing your weight
We can apply Newton's second law to this situation; the law states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

where
is the net force
m is the mass
a is the acceleration
For your body sitting on the chair,

we also know that your body is at rest, so the acceleration is zero:

This means that the net force is zero, and therefore:

Learn more about Newton's second law of motion:
brainly.com/question/3820012
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Answer:
Mass of the skater, m = 72.75 kg
Explanation:
It is given that,
Radius of the circular path, r = 31 m
Speed of the skater, v = 14 m/s
Centripetal force, F = 460 N
We need to find the mass of the skater. It can be determined using the formula of centripetal force. It is given by :



m = 72.75 kg
So, the mass of the skater is 72.75 kg. Hence, this is the required solution.