Answer:
510
Explanation:
Power= Rate of doing work i.e work done\time
=force*displacement\time
=mass*g*d\t
=51*10*5/5
=510watt
Answer:
Answered
Explanation:
I disagree with my friend because, the primary difference is not in the kind of atoms, rather it is the arrangement of atoms and molecules that distinguishes solids and liquids.
Atoms are closely packed in solid and hence large cohesive forces act between atoms in solids whereas in liquids atoms are at a distance from each other, hence, less cohesive force act between it's atoms. Moreover, due to loose packing in liquids atoms are free to move in space and hence liquids can flow whereas solids cannot.
Answer:
C
Explanation:
Let's consider the conservation of energy
Energy can not be destroyed or created energy can be transferred one form energy to a another form of energy.
(A) Then all form of energy can be transfer into any form of energy . There for all forms of energy can be transformed to thermal energy
(B) This is the law of conservation of energy
(C)Potential chemical energy can be transferred into any form of energy. It's not only to kinetic energy
(D) Some amount of thermal energy always released when it's transferred energy due to reaction forces or frictional forces.
