The number of significant figures are based on the rules:<span>non-zeros are significant Zeros in between non-zeros are also significant. Trailing zeros are considered not significant. Zeros after the decimal and non zeros are significant.</span>
a. 1
b. 3
c. 5
d. 4
e. 4
f. 6
Air entering the potential space of the pleural cavity is called pneumothorax.
Here, we are required to determine how the total reaction energy is calculated.
Total reaction energy =
- Energy of the product - Energy of the reactants.
The total reaction energy, otherwise known as the Enthalpy of the reaction is given by the difference between the enthalpy of the product and that of the reactants.
Also, it is important to note that the enthalpy is the sum total of the internal energy and the work energy of the entity in discuss, which may either be the reactants or the products.
Ultimately,
Total reaction energy =
- Energy of the product - Energy of the reactants.
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Answer:
W = 14700 J
Explanation:
This is an exercise on Newton's second law.
To solve it we must fix a coordinate system, the most common is an axis parallel to the ramp and the other perpendicular axis, we write Newton's second law
Y Axis . Perpendicular to the ramp
N - Wy = 0
X axis. Parallel to the ramp, we assume it is positive when the ramp is going up
F - Wx = m a
in this case F = 1470 N and it is parallel to the plane.
Work is defined by
W = F .d
boldface indicates vectors
W = F d cos θ
let's calculate
W = 1470 10 cos 0
W = 14700 J