which of the following is not considered a physical property? the density of copper or the toxicity of an acid

An automobile with a mass of 1000 kilograms accelerates when the traffic light turns green. if the net force on the car is 4000N, what is the cars acceleration?

Your teacher gives you 30 mL of vinegar and one gram of baking soda and tells you to find evidence that the law of conservation of mass is correct. Design an experiment to find this evidence and state your expected results.

Why are there more lines in the sun's spectrum than in the hydrogen spectrum?

What is the wave speed if the wavelength is 78 cm?

B1. A stone is dropped from the cliff. If the height of the cliff is 200cm. (a) calculate (1) Potential energy after falling for 20 seconds

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon

When air pressure is lower what happens to a balloon filled with air