Answer:
Explanation:
All substances have characteristic physical and chemical properties. Physical properties are those that can be observed with the senses without changing the identity of the substance. Chemical properties describe how a substance can be changed into a new substance. Physical and chemical properties, such as color, density, boiling point, solubility, conductivity, and flammability, A. are always different between substances. B. depend on the amount of the substance. C. do not depend on the amount of the substance. D. have the same values for all substances.
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Answers
The kind of wave it is Longitudinal
7A 8A maybe I’m not sure sorry if it’s wrong.
Answer:
With the decreasing object mass, the acceleration will also decrease.
Explanation:
Newton's second law of motion infers the relation between force F, acceleration a and mass m of a body. It is expressed as:
F = ma
When force is constant, we get m α 1/a, that is mass is inversely proportional to the acceleration of the body.
Hence when object's mass decreases, the acceleration will increase. and vice versa
Answer:
To increase the volume of moving water, impoundments or dams are used to collect the water. An opening in the dam uses gravity to drop water down a pipe called a penstock. The moving water causes the turbine to spin, which causes magnets inside a generator to rotate and create electricity.
Explanation:
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