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swat32
2 years ago
13

ASAP!

Physics
2 answers:
inn [45]2 years ago
4 0

Answer:

C

Explanation:

C. Curved lines or straight lines

Alenkasestr [34]2 years ago
3 0

Curved lines or straight lines can function as trend lines on a graph.

Answer: Option C

<u>Explanation:</u>

In general, trend refers to a pattern or behavior to represent a set of data in terms. In statistical point of view, trend lines are used in graph to represent a set of data values in terms of function in order to determine a relation between them for better understanding. The trend line can either be a curved line or a straight line which shows the direction on which the data travels.

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ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. A person walks along
Elza [17]
To find the total number of miles traveled by a person, we add the distance that he has traveled: 3.0 + 5.00 + 4.000. 

Now, to find the accurate number of significant figures when adding measurements, the basic rule for addition is to use the least number of decimal places when reporting the result.

Now, since 3.0 has the least number of decimal places, we report the sum with 1 decimal place and have 12.0 miles as the total distance traveled by the person to reach his destination.

Answer: 12.0 miles
8 0
3 years ago
Sequence the steps used to extract metal from the earths core
Iteru [2.4K]
Methods of extraction include: extract by electrolysis, extract by reaction with carbon or carbon monoxide, and extracted by various chemical reactions. 《I hope tis help you》
4 0
3 years ago
A thin-walled cylindrical pressure vessel is subjected to an internal gauge pressure, p=75 psip=75 psi. It had a wall thickness
Mekhanik [1.2K]

To solve this problem we must apply the concept related to the longitudinal effort and the effort of the hoop. The effort of the hoop is given as

\sigma_h = \frac{Pd}{2t}

Here,

P = Pressure

d = Diameter

t = Thickness

At the same time the longitudinal stress is given as,

\sigma_l = \frac{Pd}{4t}

The letters have the same meaning as before.

Then he hoop stress would be,

\sigma_h = \frac{Pd}{2t}

\sigma_h = \frac{75 \times 8}{2\times 0.25}

\sigma_h = 1200psi

And the longitudinal stress would be

\sigma_l = \frac{Pd}{4t}

\sigma_l = \frac{75\times 8}{4\times 0.25}

\sigma_l = 600Psi

The Mohr's circle is attached in a image to find the maximum shear stress, which is given as

\tau_{max} = \frac{\sigma_h}{2}

\tau_{max} = \frac{1200}{2}

\tau_{max} = 600Psi

Therefore the maximum shear stress in the pressure vessel when it is subjected to this pressure is 600Psi

6 0
3 years ago
Calculate the time it would take a motor with a power of 0.6kW to lift a suitcase of 20kg a distance of 50cm
True [87]

Answer:

0.163 s

Explanation:

Appying,

P = mgh/t................ Equation 1

Where P = power of the motor, m = mass of the suitcase, h = vertical distance, t = time, g = acceleration due to gravity.

make t the subject of the equation,

t = mgh/P................ Equation 2

Given: m = 20 kg, h = 50 cm = 0.5 m, P = 0.6 kW = 600 W

Constant: g = 9.8 m/s²

Substitute these values into equation 2

t = (20×0.5×9.8)/600

t = 0.163 s

7 0
2 years ago
In an elastic collision, ________. A. an individual molecule in the collision never loses energy B. the molecules involved in th
Aleks04 [339]

Answer:

Im pretty sure its B im very sorry if its wrong.

3 0
2 years ago
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