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2 years ago

9

One piece of wood has a rectangular bottom that is 30 cm long and 56 mm wide. The block is said to weigh 80 N. Calculate the pre

ssure that the block exerts on the surface

1 answer:

PilotLPTM [1.2K]2 years ago

8 0

Answer:

4762 N/m^2

Step-by-step explanation:

Find area.

30x5.6=168

Convert to m^2

168cm^2=0.0168m^2

Use pressure formula to get answer

P=F/A

P=80/0.0168

P=4762 N/m^2

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alukav5142 [94]

Answer: 13.5 hours.

I got the answer by simply adding up the integers to start with.

Integers = 1, 2, 3 and 5.

The integers added up equal to 11.

Next we add up the remaining fractions.

Fractions = 1/2, 3/4, 3/4 and 1/2.

We can add up 1/2 and 1/2 to equal 1, and 3/4 and 3/4 to make 1.5.

1 + 1.5 = 2.5

Finally, we add up the answer for the integers and the fractions together, (11 + 2.5) which equals 13.5.

Our answer is 13.5 hours.

(Not sure why the answer isn't in the choices)

6 0

3 years ago

What is the equation of (4,10),(6,11) in standard form?

SIZIF [17.4K]

ANSWER

The standard form is:

$x - 2y = - 16$

EXPLANATION

The given line passes through (4,10)and (6,11).

The slope of this line is

$m = \frac{11 - 10}{6 - 4}$

$m = \frac{1}{2}$

The equation is given by the formula,

$y-y_1=m(x-x_1)$

We plug in the first point and the slope to get.

$y-10= \frac{1}{2} (x-4)$

$2y - 20 = x - 4$

$x - 2y = - 20 + 4$

$x - 2y = - 16$

The standard form is

$x - 2y = - 16$

7 0

3 years ago

Which graph has the domain of x>-3? The less than sighn is supposed to have the line under. Will mark the brainliest

KIM [24]

Answer:

Top graph

Step-by-step explanation:

It starts at x and continues right, so x > -3 in that graph

4 0

2 years ago

Answer for this one please

Andrej [43]

Y-12=28
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2 years ago

Can 7in and 1lb be in the same unit

monitta

Answer:

Yes

Here you gooooooo

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2 years ago

Read 2 more answers