When You Push a Crate Across a Level Floor at Constant

question 21

Multiple Choice

When you push a crate across a level floor at constant velocity,friction between the crate and the floor is

• A)less than your pushing force.
• B)the same amount as your pushing force.
• C)more than your pushing force.
• D)none of the above

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Definitions:

Oxidation-reduction

A chemical reaction where one reactant is oxidized (loses electrons) and another is reduced (gains electrons), playing a crucial role in energy transfer and chemical transformations.

Oxidation-reduction

Chemical reactions involving the transfer of electrons from one substance to another, affecting the oxidation state of the involved species.

Precipitation Reaction

A precipitation reaction is a chemical reaction in which soluble ions in separate solutions react to form an insoluble compound that settles out of solution as a solid precipitate.

Limiting Reactant

The limiting reactant is the substance in a chemical reaction that is completely consumed first, thereby determining the maximum amount of product that can be formed.