ears?
Answers:
•air
•energy
•vacuum
•large vibrations
Answit would be air because only electromagnetic waves and some others travel thru a vacuum fam
Explanation:
Answer: Air
Explanation:
oxygen
bromine
silver
Answer: Option (d) is the correct answer.
Explanation:
As it is known that density is the amount of mass divided by the volume.
Mathematically, Density =
Since, mass is directly proportional to density. Hence, more is the mass of an object more will be its density.
At room temperature chlorine exists as a gas and its molar mass is 35 g/mol.
At room temperature oxygen exists as a gas and its molar mass is 32 g/mol.
At room temperature bromine exists as a liquid and its molar mass is 80 g/mol.
At room temperature silver exists as a solid and its molar mass is 108 g/mol.
As the mass of silver is greater and it exists as a solid at room temperature. Hence, it will be most dense in nature.
Therefore, we can conclude that out of the given options silver substance is most likely the most dense.
B) erosion
C) volcano
D) landslide
B.Complex Machine
C.Compound Machine
D.Simple Machine
A rake is a simple machine. Thus, the correct option is D.
A simple machine is a mechanical device which changes the direction or magnitude of an applied force. In general, these machines can be defined as the simplest mechanisms which uses mechanical advantage also called as leverage to multiply the force. Usually the term refers to the six classical simple machines which were defined by Renaissance scientists including lever, wheel and axle, pulley, inclined plane, wedge, and screw.
A simple machine uses a single applied force to do the work against a single load force or friction. Ignoring the friction losses, the work done on the load force is equal to the work done by the applied force.
Therefore, the correct option is D.
Learn more about Simple machine here:
#SPJ3