Suppose that 2 j of work are needed to stretch a spring from its natural length of 30 cm to a length of 42 cm. how much work (in j) is needed to stretch it from 35 cm to 40 cm?

A person jogs 4.0 km in 32 minutes, then 2.0km in 22 minutes and finally 1.0km in 16 minutes. What is the joggers average speed in km per minute?

The most useful unit of measurement for measuring the thickness of a side of a lab beaker would be a (n) A. Inch B. Meter C. Millimeter D. Centimeters

The ice cap at the North Pole may be 1000 m thick, with a density of 920 kg/m3. Find the pressure at the bottom and the corresponding melting temperature.

The weight of a body of certain mass become zero in space. why?

1. How can you conserve water in the kitchen?

Which of the following is evidence used to support the Big Bang Theory? background radiation increasing distances between galaxies both of the above

Which of the following statements about noncovalent bonding interactions is NOT true? Van der Waals interactions, also known as dispersion forces, are the weakest of the attractive noncovalent bonding interactions.

Does a rising GDP benefit everyone

You have a neutral balloon. What is its charge after 12000 electrons have been removed from it? The elemental charge is 1.6 * 10-19 C. Answer in units of µC.

Which formula can be used to find the x-component of the resultant vector?