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Sraj#sci

Day#1

Physics

Footprint of whole lecture 09/06/21

Come back with Newton's third law

Clips recommended

Day#02

Lecture on basic physics with naive definition

Clips recommended

Day#3

For practice:-(multiply type)

1)Suppose vectors A and B are rotated in the plane which contains them: What happens to the direction of vector C=AXB 😎

2)Suppose you were free to rotate vectors A and B through arbitrary amounts keeping them confined to the same plane. Can you make vector C=AxB to point in exactly opposite direction?👌

                                   Chemistry.         

Day#2

For Practice only 

1. (a) What is the mass of (1) 1 mole of water (11) 0.5 mole of CO, (ii) 2.5 moles of Cl₂? (b) How many moles of atoms are contained in: (1) 9.0 g of Aluminium (ii) 0.8 g of Iron ?

2. Calculate the number of moles in each of the following amounts of materials:

(1) 10.0 g of CaCO3 (ii) 1 x 10^23 molecules of CO₂

Biology.                                                  

Sunday lecture on biology

Day#1