15) a force of 200 n is exerted on an object of mass 40 kg that is located on a sheet of perfectly smooth ice.
a. calculate the acceleration of the object. flm = 200 ong e m/s2
b. if a second object identical to the first object is placed on top of the first object, what
acceleration would the 200 n force produce?

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

i believe the answer is true.