Answer:400m
Explanation: x=20⋅10+ 4.10^2/2 =400m
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.
Answer:
Repulsion
Explanation, due to this repulsion with the proton and the electron, each electron experiences a nuclear charge that is somewhat less than the actual nuclear charge.
