An object is moving across a surface but it does not gain or lose speed which best describes the objects force

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth