Answer:
Volume of brick = 3900 cm3 = 3.9*10^3 cm3
Volume of water displaced = 3900 ml = 3.9*10^3 ml
Explanation:
Given:
Dimension of the brick = 25 cm, 12 cm, 13 cm
To determine:
a) Volume of the brick
b) Volume (ml) of water displaced by the brick
Calculation:
a) Volume of the brick (cube) is expressed as a product of the dimensions
b) The volume of water displaced is equal to the volume of the brick.
Since, 1 ml = 1 cm3
Therefore, volume of water displaced = 3900 ml = 3.9*10^3 ml
b) Alkali metals; Noble gases
c) Noble gases; Alkali metals
The group with the highest ionization energy is(option c) noble gases due to their full electron shell, making it difficult to remove an electron. The group with the lowest ionization energy is(option c) alkali metals because they have only one electron in their outermost shell, which can be easily removed.
The answer to the question is (c) Noble gases; Alkali metals. Ionization energy is the energy required to remove an electron from an atom or ion. A higher ionization energy means it is harder to remove an electron.
Noble gases have the highest ionization energies because they have a full electron shell, so they do not readily give up an electron. On the other hand, alkali metals have the lowest ionization energy, because they have only one electron in their outer shell, which is relatively easy to remove.
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The correct answer is A.syrup
Answer:
The kinetic energy of a 4 kg mass moving at 3 m/s is 18 joules.
Explanation:
The kinetic energy (KE) of an object is calculated using the following formula: (image inserted)
Where:
KE: is the kinetic energy
m: is the mass of the object
v: is the velocity of the object
In your case, the mass (m) is 4 kg, and the velocity (v) is 3 m/s. Plugging these values into the formula.
The unit of kinetic energy is the joule (J), which is equivalent to a kg m^2/s^2. So:
KE = 18 J
Answer:
Ionic Compounds have high boiling and melting points as they're very strong and require a lot of energy to break. The electrostatic forces of attraction between oppositely charged ions lead to the formation of ions. Ionic compounds form crystals. These compounds are brittle and break into small pieces easily.
Explanation: