b)star-star and delta-delta
2. WHAT IS DIFFERENCE BETWEEN FORCE AND WEIGHT?
Weight=mgh
where m=mass
g=gravity
h=height
Force=ma
where m=mass
a=accelaration
weight=Force X Distance
3. FRICATION FORCE ALWAYS OPPSES TO ........?
APPLYING FORCE
4. 1 WATT IS EQUAL TO _________ KCal/hOURS?
1 kwh=860000 calories
6. In which direction Earth rotates?
West to east.
7. Gun Powder first used in the country?
country of Europe
8. Heat is generated in the sun by?
nuclear fusion.
9. Color of oxygen cylinder used in hospital?
black with white shoulder
