Answer:
1. children you only use 2 fingers
2. adult its 30 chest compression to 2 breaths, children its 15 to 2
3.you have to use a different size mask for a child
Answer: 7cm
Explanation:
The surface area of a sphere is calculated by using the formula:
A = 4πr²
Since the surface area is 616cm², using the formula given, the radius will be calculated thus:
A = 4πr²
616 = 4 × 22/7 × r²
616 = 88/7 × r²
Multiply both side by 7/88
616 × 7/88 = 88/7 × 7/88 × r²
49 = r²
r = ✓49
r = 7
The radius is 7cm
Answer:
engine exhaust, domestic heating, volcanic eruptions
Explanation:
Answer:
Electroplating is the process of applying a metal coating on another piece of metal (or another conductive surface) through an electro-deposition process. In electroplating, the deposited metal becomes part of the existing product with the plating/coating. Electroplating is a popular metal finishing and improving process used in a wide range of industries for various applications. Electroplating is primarily used to change the physical properties of an object. This process can be used to give objects increased wear resistance, corrosion protection or aesthetic appeal, as well as increased thickness.
Explanation:
