Answer:
Explanation:
Hi!
In a (x, y) coordinate representation, the two forces are:
The sum of the two forces is:
The angle to x-axis is calculated using arctan:
The magnitude is:
Answer: C
Explanation: The atomic number of an element is determined by the number of protons because the number of protons in the nucleus of an atom is equal to the number of atoms.
Please, you have to apply the formula below:
<span>Q=c∗m∗Δt
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where Q is the energy lost,
c is the specific heat of water,
m is the mass of water involved,
so m=3.75 *10^-1 Kg
c=4,184 J/(Kg*°C)
<span>delta t=37.5 °C
I hope my answer has come to your help. God bless and have a nice day ahead!
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