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CaHeK987 [17]
2 years ago
14

The simulation kept track of the variables and automatically recorded data on object displacement, velocity, and momentum. If th

e trials were run on a real track with real gliders, using stopwatches and meter sticks for measurement, how might the data compare? Check all that apply. There would be variables that would be hard to control, leading to less reliable data. The data would be just as valid if it were recorded with a stopwatch. Meter sticks may lack precision or may be read incorrectly. Real glider data may vary since real collisions may involve loss of energy. Human error in recording or plotting the data could be a factor. Controlling real glider velocities by hand would be just as accurate as simulation controls.
Physics
2 answers:
Natali5045456 [20]2 years ago
3 0
A I just took the test
laiz [17]2 years ago
3 0

Answer:

in general the data is less accurate than in the simulation

Explanation:

If the measurements were on a real track, some data would be difficult to control, for example the amount of movement. Therefore the results of this parameter would be less reliable.

The bars have a finite width, so that their reading is difficult to match the accuracy of the simulation where the width of the bar is zero.

The other important variable is human error due to several factors, fatigue, parallax, response time, which in the simulation does not exist

The launch speeds of the car by hand have variations due to changes in the person, which in the simulation is always the same

in general the data is less accurate than in the simulation

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D
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Odległość między kolejnymi grzbietami fal na morzu wynosi 20 m. Łódź opada z grzbietu fali, unosi się i osiąga ponownie najwyższ
Veronika [31]

Answer:

Explanation:

The distance between successive wave crests at sea is 20 m. The boat descends from the crest of the wave, rises and reaches the highest position again within 5 s. Calculate the wave propagation speed.

Given that,

The distance between two successive crest is 20m

Wavelength is the distance between two successive crest or trough

Then, it's wavelength is λ = 20m

The time to reached the maximum height is 5seconds, then it will take (5×4) to complete one period

Then,

Period T = 20seconds

From wave equation

v = fλ

Where

v is speed

f is frequency and

λ is wavelength

The frequency is related to the period

f =  1 / T

Then,

v = λ / T

So, v = 20 / 20

v = 1 m/s

The speed of propagation of the wave is 1m/s

To Polish

Jeśli się uwzględni,

Odległość między dwoma kolejnymi grzebieniami wynosi 20 m

Długość fali to odległość między dwoma kolejnymi grzebieniami lub dolinami

Zatem jego długość fali wynosi λ = 20 m

Czas do osiągnięcia maksymalnej wysokości wynosi 5 sekund, a następnie ukończenie jednego okresu zajmie (5 × 4)

Następnie,

Okres T = 20 sekund

Z równania falowego

v = fλ

Gdzie

v to prędkość

f oznacza częstotliwość, a

λ jest długością fali

Częstotliwość jest związana z okresem

f = 1 / T

Następnie,

v = λ / T

Zatem v = 20/20

v = 1 m / s

Prędkość propagacji fali wynosi 1m/s

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The temperature and pressure at the surface of Mars during a Martian spring day were determined to be -50 °C and 900 Pa, respect
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Answer:

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R = 188.82 J / kg K for CO2

Density (Martian Atmosphere) = P / RT = 900 / 188.92 x 223 = 900 / 42129.16 = 0.0213 kg / m^{3}

T = 273 +18 = 291 K, R = 287 J / kg k (for air) P = 101.6 k Pa = 101600 Pa

Density (Earth Atmosphere) = P / RT = 101600 / 287 x 291 = 1.216 kg / m^{3}

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A 60.0-kg mass person wishes to push a 120-kg mass box across a level floor. The coefficient of static friction between the pers
Aneli [31]

Answer:

μ = 0.350

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Therefore, for the person to be able to push the box horizontally, the coefficient of static friction between the box and the floor should not be higher than 0.350.

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