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Misha Larkins [42]
3 years ago
14

A bullet is fired straight up from a gun with a

Physics
2 answers:
Vadim26 [7]3 years ago
8 0
V(4 seconds)= 300 m/s - 9.8 (m/s^2)(4s) = 260.8 m/s
Katena32 [7]3 years ago
6 0
<span>v(4 seconds)= 300 m/s - 9.8 (m/s^2)(4s) = 260.8 m/s </span>, hope this helps:)
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Answer:

1)Observe a phenomenon

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3)Form a hypothesis

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5)Collect data

6)Compare results

7)Analyze

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3 years ago
Which could be an example of a balanced force?
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Answer:

An  asteroid moving at a constant speed through space.

Explanation:

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3 years ago
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A car slows down uniformly from a speed of 30.0 m/s to rest in 7.20 s
Ede4ka [16]

When acceleration is constant, the average velocity is given by

\bar v=\dfrac{v+v_0}2

where v and v_0 are the final and initial velocities, respectively. By definition, we also have that the average velocity is given by

\bar v=\dfrac{\Delta x}{\Delta t}=\dfrac{x-x_0}{t-t_0}

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Take the car's starting position to be at t_0=0\,\mathrm s. Then

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So we have

x=0\,\mathrm m+\dfrac12\left(0\,\dfrac{\mathrm m}{\mathrm s}+30.0\,\dfrac{\mathrm m}{\mathrm s}\right)(7.20\,\mathrm s)=108\,\mathrm m

You also could have first found the acceleration using the equation

v=v_0+at

then solve for x via

x=x_0+v_0t+\dfrac12at^2

but that would have involved a bit more work, and it turns out we didn't need to know the precise value of a anyway.

7 0
3 years ago
A pendulum is transported from sea-level, where the acceleration due to gravity g is 9.80 m/s2, to the bottom of Death Valley. A
tatyana61 [14]

Answer: the value of g in Death Valley is 10.417 m/s²

Explanation:

Given that;

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T = 2π√(l/g)

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g' = (T²/ (0.97T)²)g

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therefore the value of g in Death Valley is 10.417 m/s²

7 0
3 years ago
En que parte de la isla de cuba tuvieron lugar los principales acontecimientos de la guerra de independencia?
DedPeter [7]

Answer:

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Entre los lugares están Ibarra, Guantánamo y Manzanillo.

Explanation:

8 0
4 years ago
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