Mika Jena and 5 friends will help run the event. They will wear either a red shirt or a red baseball cap during the event. They
2 answers:
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Answer:
Step-by-step explanation:
The area of a trapezium is (where
are the parallel sides and
is the perpendicular height)
Area of trapezoid
∴ The area of the trapezoid is
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Answer:
The answer is:
5 ft is <u>13.33</u>% of 37 1/2 ft; 37 1/2 ft is <u>750</u>% of 5 ft.
Step-by-step explanation:
Given:
5 ft is ____ % of 37 1 2 ft.
Now, to find the __ :
Let __ be
So, 5 ft is of 37 1/2
⇒
⇒
Multiplying both sides by 200 we get:
⇒
Dividing both sides by 75 we get:
⇒
⇒
Now, 37 1/2 ft is % of 5 ft.
Multiplying both sides by 100 we get:
Dividing both sides by 5 we get:
Therefore, the answer is 5 ft is <u>13.33</u>% of 37 1/2 ft; 37 1/2 ft is <u>750</u>% of 5 ft.
To start this question, we should know what is the atomic number of cobalt. The atomic number (the number of protons) of Cobalt is Z =27.
Now, we know that a Cobalt 60 isotope means an isotope of Cobalt whose Atomic Mass is 60.
Thus, in a Cobalt 60 isotope, the number of neutrons in the nucleus are
From the question we know that the given nuclear mass is 59.933820 u.
Now, the mass defect of Cobalt 60 can be easily calculated by adding the masses of the protons and the neutrons as per our calculations and subtracting the given nuclear mass from it.
Thus,
Mass Defect = (Number of Protons Mass of Proton given in the question) + (Number of Neutrons Mass of Neutron given in the question)-59.933820 u
Thus, the required Mass Defect is 0.5634u.
In eV, the Mass Defect is