- Fresh Harbour
- Netherton
- Old Town Harbour
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Answer:
<h2>4/3 Joules </h2>
Step-by-step explanation:
Work is said to be done when force applied to an object causes the object to move through a distance.
Work done = Force * perpendicular distance.
Given Force F = xy i + (y-x) j and a straight line (-1, -2) to (1, 2)
First we need to get the equation of the straight line given.
Given the slope intercept form y = mx+c
m is the slope
c is the intercept
m = y₂-y₁/x₂-x₁
m = 2-(-2)/1-(-1)
m = 4/2
m = 2
To get the slope we will substtutte any f the point and the slope into the formula y = mx+c
Using the point (1,2)
2 = 2+c
c = 0
y = 2x
Substituting y = 2x into the value of the force F = xy i + (y-x) j we will have;
F = x(2x) i + (2x - x) j
Using the coordinate (1, 2) as the value of s
The time taken by a group of 8 people working half the rate of the first group is 7.5 hours.
<h3>What is a fraction?</h3>
Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have:
A Group of 5 people can do a piece of work in 6hrs.
5 people, at a rate of 1, and the time taken is 6 hours
Work done is 30
8 people, at a rate of 1/2, and the time taken is x hours
8(1/2)x = 30
x = 60/8 = 7.5 hours
Thus, the time taken by a group of 8 people working half the rate of the first group is 7.5 hours.
Learn more about the fraction here:
brainly.com/question/1301963
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Answer:
the answer is n + 8 × 2
Step-by-step explanation:
hope this helps
Above the core is Earth's mantle, which is made up of rock containing silicon<span>, </span>iron,magnesium<span>, </span>aluminum<span>, oxygen and other minerals. The rocky surface layer of Earth, called the </span>crust<span>, is made up of mostly oxygen, </span>silicon<span>, </span>aluminum<span>, </span>iron<span>, </span>calcium<span>, sodium, potassium and </span>magnesium<span>.</span>