If an object has a mass of 1 kg, what is its weight on earth

Which of the following is true about natural selection? A.) It occurs extremely rapidly B.) It can always be observed within a single generation C.) It causes mutations to occur D.) It causes more useful traits to be passed to offspring

A circuit contains two lamps connected in series. What would happen to the brightness of each lamp if two more lamps were added? Explain

A car is driving on the turnpike accelerates uniformly in a straight line from 88ft/s to 110 ft/s in 3.50s A) what is the cars acceleration? B) how far does the car travle while it accelerates

An elevator is accelerating upwards at 3m/s. It has a mass of 300k. What is the net force (in Newton's) in the y-direction

The iron-rich core of the Moon is thought to be about how many kilometers in diameter?

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons

Gamma radiation can be significantly reduced by ... A sheet of paper Air A 3 mm thickness of aluminium Several cm of lead