Question

e Kepler's first law of planetary motion and differentiate
veen perihelion and aphelion
distance of a planet from the sun is 40 time that of the earth.
at is the ratio of their period of time around the sun?
[Ans 253 : 1]
pose a planet exists whose mass and radius both are half
of the earth. The acceleration due to gravity on the surface
is planet will be double? Justify
eleration due to gravity of the earth is less at equator than at
s, why?
bject is dropped from height. It moves through a distance
4.5 m in the last second before hitting ground. Find the
[Ans. 44.1 m]
nt from which it was dropped.​

Answer 1

Answer:

Prabir Ghosh (born 1 March 1945) is the founder and president of Bharatiya Bigyan O Yuktibadi Samiti, a science and rationalists' association based in Kolkata, India. He is the author of a number of books in Bengali disputing supernatural claims and is well known for his book series titled Aloukik Noy, Loukik.

Explanation:

Answer 2

Answer:

Some major impacts of E-waste on environment are, Toxic materials like lead, zinc, nickel, flame retardants, barium and chromium, found in computers and most electronics, if released into the environment, can cause damage to human blood, kidneys as well as central and peripheral nervous system.