Answer:
Disregard a goal if you don't achieve it
Explanation:
This is because in achieving your targets/goals/dreams rewarding yourself for every small accomplishment is very important. It’ll help to keep you motivated and keep your head in the game. Similarly setting short and long-term objectives also plays a vital role. Setting a date is also important because it helps you to put your plan into action. However, disregarding a goal isn’t an option
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Answer:
systems help identify parts and simplify solutions.
Explanation:
Systems are very important in science because they are made up of many parts and can help simplify solutions better.
A system is made up of several parts that are interacting together as a whole. They are very important in solving scientific problems and looking introspectively into a problem.
The parts that makes up the system are equally important as the whole. Systems are typified by what transpires at the level of their parts. Viewing a problem from a system wide angle helps scientists have better knowledge and can be vital in solving scientific problems.
Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules.
Titanium, Lead, Potassium, and Silicon are solids at normal temperature.
Mercury and bromine (Br) are the only liquid elements at standard pressure and temperature (Hg).
<h3>What are chemical elements?</h3>
A chemical element is a species of atoms, including the pure substance made entirely of that species, that have a specific number of protons in their nuclei. Chemical elements, in contrast to chemical compounds, cannot be reduced by any chemical process into simpler molecules.
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Answer:
The mass of the receiver is 68.862 kg
Explanation:
Given;
let mass of the receiver be "m₁"
initial velocity of the receiver, u₁ = 0
mass of the tackler, m₂ = 156 kg
initial velocity of the tackler, u₂ = 6.89 m/s
their final velocity, v = 4.78 m/s
Apply the principle of conservation of linear momentum, for inelastic collision;
m₁u₁ + m₂u₂ = v(m₁ + m₂)
(m₁ x 0) + (156 x 6.89) = 4.78(m₁ + 156)
0 + 1074.84 = 4.78 (m₁ + 156)
1074.84 = 4.78 (m₁ + 156)
m₁ + 156 = 1074.84 / 4.78
m₁ + 156 = 224.862
m₁ = 224.862 - 156
m₁ = 68.862 kg
Therefore, the mass of the receiver is 68.862 kg
Answer:
Particle spacing increases and it's called evaporating
