A car travels between two towns 80 miles apart in 2 hours. What is its average speed?

Which of the following systems possesses the highest entropy? A new pack of playing cards, unopened and unshuffled A pack of playing cards shuffled and ready to be used Playing cards in hand and in use A new pack of playing cards unshuffled but open

The frequency of a sound wave is determined by the?

When creating a graph why is an appropriate title for a graph is important

Why are energy pyramids usually no more than 4 trophic levels?

How much do a steel BB weight?

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)