Calculate mean life and half life, Q. The half life of radon is 3.8 days. C...

Q. The half life of radon is 3.8 days. Calculate mean life. Half Life Period          HLP T ½ = 0.6931 / λ = 0.6931 τ therefore                      Mean life τ = T ½ / 0.

What do you understand by sky wave propagation, What are the basic block st...

What are the basic block structure of communication system? What do you understand by sky wave propagation?

Radioactivity-pulmonary embolism, Pulmonary embolism: -  It is a blood clo...

Pulmonary embolism: -  It is a blood clot blocking  a major artery in the lunge ,it represent a serious medical problem. - About 100 MBq of lumpy 99mTc –is injected into a vein .T

Define grand lunar canals, Define Grand Lunar Canals (Moscow Phys-Tech)? ...

Define Grand Lunar Canals (Moscow Phys-Tech)? In one of his book, H. G. Wells illustrate an encounter of amateur earthling astronauts with a lunar civilization living in very d

Can illuminators be computer controlled, Can illuminators be computer contr...

Can illuminators be computer controlled? Practically all can be computer controlled as well as illuminators are not an exception. Color discs, mechanical shutters and lamp volt

Dimensional analysis, can you please give me a step wise answer for finding...

can you please give me a step wise answer for finding the dimension of impulse

Forces and nature,

Energy, What is potential and kinetic energy?

What is potential and kinetic energy?

Friction, why is friction necessary

why is friction necessary

Why area of surface has no role in motion due to friction, Friction is a mi...

Friction is a microscopic constant and so macroscopic level area does not matter. But area would matter if the object we''re putting under study was microscopic, which isn''t in o