Energy transfer by convection is usually restricted to what type of substance?

what are the sharp curves nails on animals foot called

According to the continental drift theory, what separated the continents? A. An asteroid B. Centrifugal force C. Numerous volcanoes D. The formation of oceans

A steady beam of alpha particles (q = + 2e, mass m = 6.68 * 10-27 kg) traveling with constant kinetic energy 22 MeV carries a current of 0.27 µA.

Which of the following is calculated using the equation vf = vi + at? free fall acceleration due to gravity free fall velocity distance of acceleration

The relative hardness of a mineral can best be tested by a) scratching the mineral across a glass plate b. squeezing the mineral with calibrated pliers c. determining the density of the mineral d. breaking the mineral with a hammer

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale

A protostar forms once the nebular cloud condenses and the core begins

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are