Asolid weighs 80 gram in air, 64 gram in water and 75 gram in an oil. calculate:
a)the relative density of the solid

b)the relative density of the oil

c)weight of water displaced

d)upthrust in water

e)density of oil

f)loss of weight of object in water

g)apparent weight of object in water

h)upthrust in oil

i)weight of oil displaced

j)loss of weight of object in oil

k)volume of the object

l)density of object

b.a device that inputs heat into a cool object

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.