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nirvana33 [79]
3 years ago
8

If all blocks are the same density, are they all the same material?

Physics
2 answers:
schepotkina [342]3 years ago
8 0
No they are not the same material because having the same density doesnt mean its the same material also they can have a different density and be the same material 
Zinaida [17]3 years ago
8 0
No they don't have to be the same material. for example A watch made of gold and a brick made of gold have different masses and volumes, but they can have the same density.
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750 divide 50 which is 15n

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Mass is measured in ____________, and weight is measured in ______________.
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Answer:

MASS is measured in KILOGRAMS

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Explanation:

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Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after th
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3 years ago
What occurs any time an object speeds up, slows down, or changes directions
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Whenever the motion of an object <em><u>changes</u></em> . . . speeding up, or slowing down,
or changing direction . . . that change is called "<em><u>acceleration</u></em>".  Acceleration is
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4 0
3 years ago
A motorcyclist drives from A to B with a uniform speed of 30 km/h and returns back with a speed of 20km/h-¹ find the average spe
k0ka [10]

Answer:

Average speed = 24 km/h

Explanation:

  • Let the distance be x.

<u>Given the following data;</u>

Uniform speed A = 30 km/h

Uniform speed B = 20 km/h

To find the average speed;

Mathematically, the average speed of an object is given by the formula;

Average \; speed = \frac {total \; distance}{total \; time} ..... equation 1

Total time = TA + TB

T_{A} = \frac {x}{30}

T_{B} = \frac {x}{20}

Total \; time = \frac {x}{30} + \frac {x}{20}

Total \; time = \frac {5x}{60}

Total distance = x + x

Total distance = 2x

Substituting the values into equation 1;

Average \; speed = \frac {2x}{\frac {5x}{60}}

Average \; speed = \frac {2x*60}{5x}

Average \; speed = \frac {120}{5}

<em>Average speed = 24 km/h</em>

6 0
3 years ago
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