The density of the substance is obtained by dividing its mass by its volume. Density is an intensive property which means that its value does not depend on the amount of substance and will always stay the same for same conditions.
d = 84.7 g / 46.7 cm³ = 7.75 g / x cm³
The value of x is approximately 4.27 cm³.
Answer:
W = 46 J
Explanation:
We need to find the angle between the two vectors Force vector and displacement vector.
First we will find the angle α of the force vector
Then we find the angle β of the displacement vector
With these two angles we can find the angle between the two vectors
∅ = α + β = 25.56 deg
The definition of work is given by the expression
The absolute value of F will be:
The absolute value of d will be:
Now we have:
<h2>3800÷3</h2><h3>=1266.66666</h3>
please mark this answer as brainlist
<span>The answers are --
a) wind direction
b) wind speed
e) intensity of precipitation
f) location of precipitation</span>
<h3><u>Answer;</u></h3>
C. 228 Joules
<h3><u>Explanation;</u></h3>
<em><u>Efficiency of a machine is the energy or work output, divided by the energy or work input, and expressed as a percentage. </u></em> An ideal machine would have an efficiency of 100%.
Efficiency = (work output/work input) × 100%
work input = 350 joules, efficiency = 65.1%
Work output = 350 j × 65.1/100
= 227.85
<u>≈ 228 Joules</u>