What is the formula of velocity?

1037

How does the elevation and air pressure affect the boiling point of water?

1114

What is black body? : quantum physics

986

Tell me is it possible that a nucleus has negative mass defect?

923

why copper is a bad conducter at low temperature?

1903

In which medium does the sound travel fatest?

1065

Define a hypothesis?

769

What is the law of machines?

1064

What are magnetic storms?

1113

What happens to the velocity of sound with the rise of temperature?

1017

Tell me how asteroids are formed?

1023

How can we calculate or estimate the evaporation from lakes?

829

Giraffe in Arabic means "the highest of all." The height of a giraffe is an average of 5 m, its mass is about 800 kg and hooves is an area of approximately 625 cm2. Using a straw from a material nedeformabil a giraffe trying to drink water from a lake, not to condescend. What is the ratio of the minimum pressure to be applied giraffe, mouth, at the end paiului to drink water and pressure of giraffe on the ground. The density of water. g = 10 m/s2

2164

Why does not bicycle fall when it running condition? When it fall whiteout stand. Why?

957

Laser is an acronym for what?

1038