Describe how the design of a vacuum flask keeps the liquid inside hot?

The first attempt at publishing a list of relative atomic masses was made by

What is the difference between the continental and oceanic crust?

Fill in the word that completes each statement. Current cannot flow through a circuit when the switch is Current flows through a circuit and all of the bulbs are lit only when the switch is

Which metal if either has the greater change of thermal energy explain?

Sinkholes can form when

Why does it hurt your hands when you carry heavy shopping in carrier bags?

Why did scientists choose carbon as a base for the atomic mass unit? Which isotope of carbon did they use?

What organelle is found in all animal cells and some plant cells

Basic of Archimedes's principle of how fluid can make body to float and sink.

A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun powder. What is the average force (in N) exerted on a 0.0500 kg bullet to accelerate it to a speed of 625 m/s in a time of 1.10 ms (milliseconds)