Answer:
i dont know th answer can u help ?
Explanation:
Answer:
Molar mass -56.0774 g/mol
There is a way to calculate this
atomic number for calcium is 20
atomic number for oxygen is 8
The molar mass for calcium is 40
The molar mass for oxygen is 16
CALCIUM OXIDE
40. +. 16
=56g/mol
1 molecule = 1×56=56g/mol
2 molecules=2×56 =112g/mol
Answer:
Q = 125.538 W
Explanation:
Given data:
D = 30 cm
Temperature
degree celcius

Heat coefficient = 12 W/m^2 K
Efficiency 80% = 0.8


Q = 125.538 W
Answer:

Explanation:
Given
Let the two forces be


and

Required
Determine the resultant force
Resultant force (Fr) is calculated using:

This means that we need to first calculate 
Given that:

In trigonometry:

By comparing the above formula to 


The hypotenuse is calculated as thus:






is then calculated using:


Substitute values for
,
and
in




Take square roots of both sides


<em>Hence, the resultant force is 200N</em>