How many significant digits are in the measurement 143,000

In Newtons famous event that why, apple always falls to the Earth. Suppose the weight of the apple is 2.5 N. Then calculate the force that does the apple exert on the Earth and also mention the direction of the calculated force?

A car with a mass 1200 kg accelerates at 1.89 m/s2. What is the total force exerted by the car on the road (answer in N to two decimal places) ?

The science of what matter is made of and how it changes is called

True or False? Metrics are based on the British system of weights and measures.

Which choice correctly ranks these items from smallest to largest? carbon atom comma E. coli bacteria cell electron quantum dot electron - carbon atom - quantum dot - E. coli bacteria cell comma comma - carbon atom - E.

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m

Inert gas used to make bright city lights True or False

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes