Answer: The correct answer is mechanical energy.
Explanation:
Mechanical energy is the sum of the both potential and kinetic energies.
M.E = P.E + K.E
Potential energy is due to the position of the object.
Kinetic energy is due to the motion of the object.
When the barbell is lifted then it will have potential energy with small amount of kinetic energy.
When the shot put is thrown then there will be both potential energy and the kinetic energy.
Therefore, the mechanical energy is present in a barbell being lifted or a shot-put being thrown.
B. Both atoms will have the same number of protons.
C. Both atoms will have the same number of neutrons.
D. Cobalt has one less proton.
Answer:
Cobalt has one less proton.
Explanation:
Nickel and Cobalt both has almost same atomic mass number approximately 59 but has different atomic number.
Number of proton and electrons in an atom is given by,
Number of proton = Number of electron = atomic number of an atom.
Number of neutron in an atom is given by,
Number of neutrons = Atomic mass number - atomic number
Case 1: Cobalt
Atomic mass number = 59
Atomic number = 27
Number of proton and electrons in Nickel is given by,
Number of proton = Number of electron = atomic number of an atom.
Number of proton = 27
Number of proton = 27
Number of neutron in an atom is given by,
Number of neutrons = Atomic mass number - atomic number
Number of neutrons = 59 - 27
Number of neutrons = 32
Case 2: Nickel
Atomic mass number = 59
Atomic number = 28
Number of proton and electrons in Nickel is given by,
Number of proton = Number of electron = atomic number of an atom.
Number of proton = 28
Number of neutron in an atom is given by,
Number of neutrons = Atomic mass number - atomic number
Number of neutrons = 59 - 28
Number of neutrons = 31
Cobalt has one less proton.
Thus, Option D is correct.
Answer: The correct answer is option D.
Explanation:
Cobalt and Nickel both are transition metals which means that their last electron enter d-orbitals.
These two elements have similar atomic masses but differ in the atomic number.
Atomic number is equal to the number of protons or electrons present in that element.
Atomic number = number of protons = number of electrons
Atomic Mass is the sum of protons and neutrons in an element
Atomic mass = Number of protons + Number of neutrons
Atomic Number = 27
Number of protons = 27
Atomic mass = 59
Number of neutrons = 59 - 27 = 32
Hence, Number of protons in this element is 27 and number of neutrons are 32.
Atomic Number = 28
Number of protons = 28
Atomic mass = 59
Number of neutrons = 59 - 28 = 31
Hence, Number of protons in this element is 28 and number of neutrons are 31.
Hence, the correct answer is option D.
B) None of the remaining light bulbs will be on.
C) Only the bulb closest to the switch will be on.
D) All three remaining light bulbs will be brighter than before.
The correct answer is option B) None of the remaining light bulbs will be on.
In a series connection when a bulb is removed, it will be creating a open circuit. Since the circuit is series and is open at a point current will not flow and hence the other bulb will not glow.
That's because the basic requirement for the circuit to operate a continuous, closed-loop path is no longer met. This is the main disadvantage of a series circuit. If any one of the light bulbs or loads burns out or is removed, the entire circuit stops operating.
Learn more about the series circuit here: brainly.com/question/19865219
#SPJ
The distance between the minima decreases.
The distance between the maxima stays the same.
The distance between the minima increases.
The distance between the minima stays the same.