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3 years ago

Please help! The last answer I need!

Mathematics

1 answer:

ruslelena [56]3 years ago

6 0

Answer

I would choose the answer c

really hope that helps

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A solid rectangular box with height 5 m and square base with side lengths 4 m is built using a lightweight material whose densit

elena55 [62]

Answer:

627200LJ

Step-by-step explanation:

Height of box=5 m

Side of square base=4 m

Volume of rectangular box= $l\times b\times h$

Using the formula

Volume of rectangular box= $4\times 4\times 5=80m^3$

Density of material= $800kg/m^3$

We know that

$Mass=Density\times volume$

Using the formula

Mass of rectangular box= $80\times 800=64000 kg$

Gravity= $g=9.8m/s^2$

Weight of rectangular box,F= $mg=64000\times 9.8 N$

Let L be the vertical distance traveled by box

Total work done = $W=F\times displacement$

Therefore,total work done against gravity = $64000\times 9.8 L$ =627200 L J

Hence, the box requires work against gravity=627200LJ

5 0

3 years ago

How do you know whether two quantities x and y are proportional?

ANEK [815]

Answer:

I'm pretty sure it is (a)

8 0

2 years ago

Read 2 more answers

If sin(x)=m, with m>0, find the value of sin(pie-x)

viva [34]

Answer:

Step-by-step explanation:

Sin (π - x ) = Sin x = m

8 0

3 years ago

The average amount of rent paid for apartments in Campbell is $1,331, which is 10% more than it was last spring. What was the av

baherus [9]

Answer:

1197.9

Step-by-step explanation:

10 percent of 1331 is 133.1.

because its 10 percent more, you need to do 1331-133.1:)

4 0

2 years ago

Draw an obtuse angle big. place a point p inside the angle. now construct perpendiculars from the point to both sides of the ang

never [62]

I have drawn three obtuse angles showing three different positions.

then taken a point p inside it.

Now to draw perpendicular from a point to a given line

we draw a line parallel fom that point to that given line.

After that from that point we draw perpendicular to that line.

Now the question arises which side is closer to point p ,

The answer is if length of perpendicular from p to the line is longer that side is farther from the point p , and if the length of perpendicular is shorter then that that line is nearer to point P.

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2 years ago