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3 years ago

Use the graph below to answer the following question: What does the straight, diagonal line represent?

Physics

1 answer:

slamgirl [31]3 years ago

4 0

Answer:

The straight, diagonal line represent a tangent line

Explanation:

As the shown straight diagonal line represented in the figure just goes by touching a part or points on the curve, this line will be termed as tangent line. A secant line is the one which joins two points on the curve in the inward side. But in this case, the line is touching the outward points of the curve. Also the line is sliding through the curve in outward points. So this kind of line touching some points on any curve is termed as tangential line or slope of that curve.

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Which type of wave interaction is shown in the diagram?

masya89 [10]

Answer: Constructive interference

Explanation: Just took the test

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3 years ago

By how much does the volume of an aluminum cube 4.00 cm on an edge increase when the cube is heated from 19.0°C to 67.0°C? The l

Genrish500 [490]

Answer:

The volume of an aluminum cube is 0.212 cm³.

Explanation:

Given that,

Edge of cube = 4.00 cm

Initial temperature = 19.0°C

Final temperature = 67.0°C

linear expansion coefficient $\alpha=23.0\times10^{-6}/C^{\circ}$

We need to calculate the volume expansion coefficient

Using formula of volume expansion coefficient

$\beta=3\alpha$

Put the value into the formula

$\beta=3\times23.0\times10^{-6}$

$\beta=0.000069=69\times10^{-6}/C^{\circ}$

We need to calculate the volume

$V= a^3$

$V=4^3$

$V=64\ cm^3$

The change temperature of the cube is

$\Delta T=T_{f}-T_{i}$

Put the value into the formula

$\Delta T=67-19 = 48^{\circ}C$

We need to calculate the increases volume

Using formula of increases volume

$\Delta V=V\beta\Delta T$

Put the value into the formula

$\Delta V=64\times69\times10^{-6}\times48$

$\Delta V=0.212\ cm^3$

Hence, The volume of an aluminum cube is 0.212 cm³.

5 0

3 years ago

Please help me out someone nothing helping me out please someone

Zolol [24]

Well i think the best answer would be A

8 0

3 years ago

A ball is tied to the end of a cable of negligible mass. The ball is spun in a circle with a radius 2.00 m making 0.700 revoluti

Ira Lisetskai [31]

1) find speed (8.8 m/s)
2) find acceleration (38.7 m/s^2)
answer is about 38.7 m/s^2

6 0

3 years ago

Read 2 more answers

Suppose the green car was traveling at 0 miles the white car was traveling at 70 miles at the red car was trailing at 22 miles w

Elan Coil [88]

Answer:

The white car will cover the most distance every second.

Explanation:

The formula for the uniform speed of an object is given as follows:

$s = vt$

where,

s = distance covered by the object

v = speed of the object

t = time required

Now, if we assume time to be constant at 1 s. Then the distance covered by each car will be directly proportional to the speed of the car. Hence, the car with the greatest speed will travel the greatest distance in 1 second.

We, have:

Speed of white car > Speed of red car > Speed of green car

<u>Therefore, the white car will cover the most distance every second.</u>

5 0

3 years ago