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3 years ago

How does instantaneous velocity differ from average velocity?.

1 answer:

8 0

Average velocity is the ratio of the total distance travelled to the total time spent.

Instantaneous velocity is the average velocity a body as the time tends to zero

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Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source

Travka [436]

Answer:

option C

Explanation:

The correct answer is option C

Kinetic energy is the energy which is due to the motion of body.

Potential energy is the energy due to virtue of position of the object.

option A is not true because potential energy is due the position of the body

Option B should be the potential energy not kinetic energy.;

Option D is motion of individual molecule leads to kinetic energy not potential energy.

So, the correct answer is option is the covalent bonds of a sugar molecule is potential energy because of the position of bond.

4 0

3 years ago

You're in a car that gets 28 miles per gallon of gas, driving it at a constant speed. If you took the gas from the car tank, and

Nataly [62]

Answer:

The diameter of the hose is 0.326 mm.

Explanation:

Given that,

Speed of car = 28 miles/galllon

We need to calculate the radius

The rate of flow of fluid is from the equation of continuity

$\dfrac{V}{t}=Av$

Where, A = area of cross sectional

$\dfrac{V}{t}=\pi r^2v$

We know that,

The velocity is the ratio of displacement of gas per unit time.

$\dfrac{V}{t}=\pi r^\dfrac{x}{t}$

$\dfrac{V}{x}=\pi r^2$

Put the value into the formula

$\dfrac{0.00378541}{28\times1609.34}=\pi r^2$

$r=\sqrt{\dfrac{0.00378541}{28\times1609.34\times\pi}}$

$r=1.63\times10^{-4}\ m$

We need to calculate the diameter of the hose

$d = 2r$

Put the value of r

$d=2\times1.63\times10^{-4}$

$d=0.326\ mm$

Hence, The diameter of the hose is 0.326 mm.

6 0

3 years ago

Magnets are created due to the uniform motion of

Alinara [238K]

<span>Magnets are created due to the uniform motion of "Electrons"

Hope this helps!</span>

7 0

3 years ago

Read 2 more answers

Lee knew that certain events occur to create new material in the process of sea-floor spreading. Rearrange the steps into the co

Marina86 [1]

Answer:

Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other. ... As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.

Explanation:

did this help???

8 0

3 years ago

You have been learning about chemical and physical properties in class. Your teacher asks you to make a Venn diagram that compar

Maru [420]

Answer: <u>Flammability</u> is a chemical property only.

Odor, density, melting point, boiling point, and solubility are all physical properties.

Formation of a gas, temperature change, and color change can all indicate a chemical change or a physical change has occurred, depending on if the substance's composition is changed in the process.

Hope this helps

6 0

3 years ago