1s, 2s, 3s, 3d, 3p. huehueheuheuehuehue
Answer:
niobium and tantalum, oxide and manganese
Explanation:
Both niobium and tantalum are found together in the mineral columbite, a mixed oxide that also contains iron and manganese, and they have similar chemical and physical properties. In fact Niobium was originally named columbium after Columbia, because of its discovery in a mineral sent from America in 1801
The capability to do work is said to be energy. It can neither be created nor be destroyed according to law of conservation of energy. Energy exist in different forms depends upon the work to be done such as potential energy, kinetic energy, mechanical energy, heat energy etc.
Now, when the guitarist plucks the guitar strings to make sound, he uses mechanical energy and when guitarist plucks the guitar strings guitar produces sound energy also.
Thus, option (d) is the correct answer.
Chemicals in polluted air combine with water vapor to form acid rain is True
Answer:
PE ( Potential Energy ) = Mass x Gravity x Height
Explanation:
For the first one you would do.
.28 ( mass) x 9.8 ( constant of gravity ) x .40m ( height )
So just multiply your Mass, Gravity and Height together and you will get Potential Energy
Gravity is always 9.8 m/s
