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If you were to reach the location in 316 minutes, what is your average speed in

nirvana33 [79]

The average speed is zero if our frame of reference is the rotation of the Earth because the relative distance with respect to the earth is zero.

Average speed = 0.26 km/hr

total time = 316 minutes

distance = speed * time

= 8.3 * 5*1/30 = 8.3 *1/6

= 1.38 km

Average speed = total distance / total time

1.38 km / 5.27

= 0.26 km/hr

Distance is described to be the importance or length of displacement among positions. observe that the gap between two positions is not the same as the distance traveled between them. Distance traveled is the whole period of the path traveled among positions. Distance traveled isn't a vector.

There are three foremost styles of average: imply, median, and mode. each of these strategies works barely otherwise and frequently results in slightly distinct ordinary values. The suggest is the maximum usually used commonly. To get the mean cost, you add up all of the values and divide this general by means of the variety of values.

Learn more about average speed here:-brainly.com/question/4931057

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4 0

2 years ago

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Temka [501]

Salt dissolving in water is usually considered to be a physical change so I’m pretty sure it’s that sorry if I’m wrong

6 0

3 years ago

What ultimately determines what type of solution you have? Why can’t we just use this property? Explain in terms of the tyndall

nirvana33 [79]

Answer:

The solutions are classified according to their ability to scatter light rays.

We can't just use this property because some true solutions also contain undissolved solute.

Explanation:

Tyndall effect refers to the ability of a solution to scatter light rays. True solutions do not scatter light rays while false solutions scatter light rays.

Colloid particles are not large enough to be seen with naked eyes unlike suspensions. We should not confuse a colloid with a suspension because in a suspension, the dispersed solutes are seen with naked eye.

7 0

3 years ago

Calculate the total amount of energy required to change 10.0 g of water from 35.0 degrees Celsius to 110. degrees Celsius.

Makovka662 [10]

Answer:

The total amount of energy required is 25,515.2 J.

Explanation:

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

When a system absorbs (or gives up) a certain amount of heat, it can happen that:

experience a change in its temperature, which involves sensible heat,
undergoes a phase change at constant temperature, or latent heat.

To calculate the latent heat the formula is used:

Q = m. L

Where

Q: amount of heat
m: mass
L: latent heat

To calculate sensible heat the following formula is used:

Q = m. c. ΔT

where:

Q: amount of sensible heat
m: body mass
c: specific heat of the substance
ΔT: temperature range

In this case, you have in the first place a heat to raise the temp of the water from 35.0 C to 100 C, where the specific heat value for water is 4.184 $\frac{J}{g*C}$ :

q1 = m*c*(Tfinal-Tinitial)

q1 = 10.0 g *(4.184 $\frac{J}{g*C}$ )* (100 - 35.0 C) = 2719.6 J

Now you have the heat to vaporize the water, where the heat of vaporization is 2259.36 $\frac{J}{g}$ :

q2 = m*(heat of vaporization)

q2 = 10.0 g*(2259.36 $\frac{J}{g}$ ) = 22593.6 J

Finally, you have the heat to raise temp of steam to 110 C, where the specific heat value for steam is 2.02 $\frac{J}{g*C}$ :

q3 = m*c*(Tfinal-Tinitial)

q3 = 10.0 g*(2.02 $\frac{J}{g*C}$ )*(110-100 C) = 202 J

The total amount of energy can be calculated as:

Q= q1 + q2 + q3

Q= 2719.6 J + 22593.6 J + 202 J

Q=25,515.2 J

<u><em>The total amount of energy required is 25,515.2 J.</em></u>

5 0

3 years ago

Chemical equations are used to model

Daniel [21]

Answer:

C. chemical reactions

7 0

3 years ago