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romanna [79]
3 years ago
15

What do the three variables (f,m, a) in the equation mean?

Physics
1 answer:
Anna [14]3 years ago
7 0

Answer:

f=force m=mass and a=acceleration

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A car travels from Boston to Hartford in 4 hours. The two cities are 240 kilometers apart. What was the average speed of the car
Y_Kistochka [10]

Answer:

Average speed is 60 km/hour

Explanation:

When we need to calculate average speed, we use this equation:

V = \frac{x_{f} - x_{o}}{t_{f} - t_{o}}

Where:   x_{o} = 0 km   position at the beginning

              x_{f} = 240 km   at the end

              t_{o} = 0 hours

              t_{f} = 4 hours

Then:     V = \frac{240 km - 0 km}{4 hours - 0 hours}

              V = \frac{240 km}{4 hours}

Finally    V = 60 km/hour

6 0
3 years ago
Which of the following statements best explains why genetic variation is important to the survival of a population?
Oxana [17]
D. Genetic variation increases the likelihood of an allele being present that is best suited for the environment.
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What are the factors that affect the weather?​
jarptica [38.1K]

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temperature, atmosphere pressure,wind, topography, humidity etc

6 0
3 years ago
What change will always result in an increase in gravitational force between two objects
tekilochka [14]

The gravitational force between two object depends on their masses and on their distance.


Since the formula is


F = G\frac{m_1m_2}{d^2}


If the masses grow, the force also grows. But I'm assuming the two objects are fixed, so you can't enlarge their mass.


So, the only option remaining is to lower their distance: since it sits at the denominator, a smaller value of d results in a bigger value for F.


So, if you reduce the distance between two objects, the gravitational force between them will always result in an increase

6 0
3 years ago
A truck accelerating at 0.0083 meters/second2 covers a distance of 5.8 × 104 meters. If the truck's mass is 7,000 kilograms, wha
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force= mass* acceleration 

force=58.1N

58.1*(5.8*10^4)
=3,369,800 J
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3 years ago
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