Answer:
The universe began, scientists believe, with every speck of its energy jammed into a very tiny point. This extremely dense point exploded with unimaginable force, creating matter and propelling it outward to make the billions of galaxies of our vast universe. Astrophysicists dubbed this titanic explosion the Big Bang.
Answer:
i/f = i/o + i/i f = focal, o = object, i = image
1 / i = 1 / f - 1 / o = (o - f) / o f
i = o * f / ( o - f) image distance
i = 12.5 * 22 / (12.5 - 22) = -28.9 cm
Image is real
Image is 28.9 cm to left of lens
M = - i / o = = 28.9 / 12.5 = 2.3 magnification (convex lens)
Hey astro lot is ur answer im sry if its wrong
The force with which the student is acting in the chair and the force of the chair acting on the student is 588 N
Explanation:
- There are two kinds of forces acting on you when you are sitting on the chair, they are the gravitational force and the force exerted by the chair on you.
- The forces acting on the chair when you are sitting are the gravitational force and the force exerted by you.
- As per Newton's third law of motion, for every action, there is an equal and opposite reaction.
- Hence, F = ma
that is, F = 60 * 9.8
=588 N
- So, 588 N force should be applied from both sides then only you can sit properly in the chair.
