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Alja [10]
3 years ago
10

This diagram shows the forces acting on a car. The center dot represents the car, a the arrows represent the forces acting on th

e car. Values are given for each of the forces. Refer to the diagram to answer the question. How can the forces acting on the car be described?
A:Balanced

B:Inertial

C:Unbalanced

D:Buoyant​
Physics
1 answer:
mylen [45]3 years ago
5 0
Need diagram right? Post it
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What is the acceleration of the object in the graph?
viktelen [127]

Answer:

-0.8 m/s²

Explanation:

Acceleration is the slope of a velocity vs. time graph.

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a = (0 m/s − 12 m/s) / (15 s − 0 s)

a = -0.8 m/s²

3 0
3 years ago
A frequently quoted rule of thumb in aircraft design is that wings should produce about 1000 N of lift per square meter of wing.
svetlana [45]

Answer:

    v₂ = 63.62 m / s

Explanation:

For this exercise in fluid mechanics we will use Bernoulli's equation

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We will assume that the distance between the two parts is small, so y₁ = y₂

        P₁-P₂ =  ρ g (v₂² - v₁²)

pressure is defined by

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we substitute

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         v₂² = \frac{\Delta F}{A \ \rho  \ g} + v_1^2

suppose that the area of ​​the wing is A = 1 m²

we substitute

         v₂² = \frac{1000}{1 \ 1.29 \ 9.8} + 63^2

         v₂² = 79.10 + 3969

         v₂ = √4048.1

         v₂ = 63.62 m / s

7 0
3 years ago
Jeff is part of a trekking team. As he climbs a hill, he drops his water bottle, which has a mass of 0.25 kilograms. The bottle
eduard
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6 0
3 years ago
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Which best describes Earth's magnetic pole?
goblinko [34]

Answer:

b

Explanation:

because with no pole there is no role

7 0
3 years ago
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Frequency is measured in units called?
irina1246 [14]
The frequency, f, of a wave is the number of waves passing a point in a certain time. We normally use a time of one second, so this gives frequency the unit hertz (Hz), since one hertz is equal to one wave per second.
5 0
3 years ago
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