An aeroplane flies from London to Singapore, a total distance 7000 miles. The flight lasts 14 hours. Calculate the average speed of the aeroplane in mph.

Which structure reduces friction between joints?

A spring with spring constant 450 N/m is stretched by 12 cm. What distance is required to double the amount of potential energy stored within the spring?

What is true about scientific "law"? all experiments appear to "prove" the theory all predicted observations are verified the law is repeatable no exceptions to the law are known all of the above

What value should be in place of the X

5. (II) A fisherman's scale stretches 3.6 cm when a 2.4-kg fish hangs from it. (a) What is the spring stiffness constant and (b) what will be the amplitude and frequency of oscillation if the fish is pulled down 2.

What makes the lumbar vertebrae different from the cervical vertebrae and the thoracic vertebrae?

Matter has Certain types of what

Identify the type of relationship that exists between density and temperature

You are standing on the sidewalk and see a bus drive by. What would be an ideal frame of reference? A bird flying overhead A jogger running along the sidewalk A car driving alongside the bus A tree across the street

One isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?