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svlad2 [7]
3 years ago
6

What is the question

Physics
1 answer:
77julia77 [94]3 years ago
3 0
The question wants you to figure out what is the mass of the water and the cup combined.
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A Plane crashes into the side of a mountain. If the crash took place over 9
Julli [10]

Given parameters:

Duration of crash = 9min

Velocity before crash = 2000 yards per second

Unknown:

Acceleration of the plane = ?

Solution:

Acceleration is the change of velocity with time.

  Acceleration  = \frac{V - U}{t}

where v is the final velocity

          u is the initial velocity

          t is the time taken

We need to convert the time into seconds from min;

                      60s  = 1 min

                                So, 9min = 60 x 9 = 540s

So input the parameters and solve;

                  Acceleration = \frac{2000 - 0 }{540}  = 3.7yards/s²

The acceleration of the plane is 3.7yards/s²

6 0
3 years ago
How does a distance-time graph show you which direction the runner is moving? Use your own words and science vocabulary.
Dmitry [639]

In a distance time graph, when the x and y values are positive (in first quadrant), the runner is moving forward.

While, if the distance value ( in the y axis) is negative, the runner is moving backwards ( towards the start) .

Hope it helps :)

8 0
2 years ago
I WILL MARK YOU THE BRAINLIEST NO LINKS
aliya0001 [1]

Answer:

it is 30 newtons to the left

Explanation:

6 0
3 years ago
Mixed powders may be categorized as​
Nastasia [14]

Answer:

<u><em>on  flow properties and free-flowing and cohesive. </em></u>

Explanation:

the power Free flowing powders do not cling together, as cohesive powders stick to each other and form that do not disperse well during mixing

6 0
3 years ago
At 19 ºC a volume of air takes us 9.0 mL in an expandable container. What is its volume after it is heated up to 50. ºC?
Katena32 [7]
According to Charles law, we know, at constant pressure, volume is directly proportional to temperature. 
So, <span>V/T = constant 
</span>
V₁/t₁ = V₂/t₂
V₁t₂ = V₂t₁

Here, we have: V₁ = 9 mL
V₂ = ?
T₂ = 50+272 = 323 K
T₁ = 19+273 = 292 K

Substitute their values into the expression:
9 × 323 = V₂ × 292
V₂ = 2907 / 292
V₂ = 9.95
After rounding-off to unit place value, it would be equal to 10 mL

So, In short Option C would be your correct answer.

Hope this helps!
5 0
2 years ago
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