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vaieri [72.5K]
3 years ago
9

The distance versus time graph for Object A and Object B are shown.

Physics
2 answers:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

3

Explanation:

Both move with constant speed.

lianna [129]3 years ago
5 0
Both move with constant speed
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How much force must be applied on a blade of length 4cm and thickness of 0.1mm to exert a pressure of 4000000pa?
Viktor [21]

Answer:

F= 403429 kpa

Explanation:

Pressure is the product of force and area

Mathematically,

P=F*A -------where F is force and A is area.

A= 40 *0.1 = 4mm² -----convert to m²

A= 4e⁻⁶ m²

P= 4000000 pa

F= P/A = 4000000/4e⁻⁶

F= 403428793.493 pa

F= 403429 kpa

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3 years ago
How could you determine if a chemical is an element or a compound?
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Answer:

An element is a pure substance and is found on the periodic table. If you have more than one element chemically bonded, it is a compound. ... H2O is a compound

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3 years ago
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A ball rolls down the street 9 meters in 3.5 seconds, what is it's average speed?
artcher [175]

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The Average Speed is the distance traveled for the object, divided by the elapsed time taken to travel that distance, so the formula is :

<em>S = D / T</em>

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Here the object is the ball, the distance is 9 meters and the time elapsed for the ball to roll down the street is 3.5 seconds. Applying the formula we get :

S = 9 / 3.5 ≈ 2.6 metres per second

The ≈ symbols (which is the <em>wavy equal sign</em>) means we can't write the exact result, because there is an infinite quantity of numbers after the decimal point. So we need to give an approximation, since the result is 2.57142857142857...etc. we choosed to round up the result to 2.6.

7 0
3 years ago
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