Why does heated air expand?

952

How fast can a shadow move ? If a moth fly's in front of a very bright room temperature light powerful enough to light up Saturn like the sun could it's shadow move faster then light if there was no light diffusion.

2135

Define china clay?

767

Where would you expect to find the oldest basalt on the floor of the atlantic ocean?

846

The velocity of a body was noted to be constant during five minutes of its motion. What was acceleration during this interval its?

897

What are the ten satellite launched from india and year of launch?

990

assuming g = 9.8 m/sec2, what is the weight on earth, in newtons, of a 60 kilogram person?

1139

What is centrifugal force?

993

Define the cambrian?

789

A coil of wire that produces a magnetic field is typically called a

1068

Does a soccer ball go faster in the air on a cold or hot day?

994

What is hydrogeologists?

812

why copper is a bad conducter at low temperature?

1853

Tell me what is ion pair energy?

1059

What is geochemists?

879