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3 years ago

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A car initially traveling at 15.0 m/s accelerates at a constant rate of 4.50 m/s2 over a distance of 45.0 m. How long does it ta

ke the car to cover this distance? Show all work leading to the answer including the data, equation, substitution and the final answer with units for full credit.

1 answer:

anygoal [31]3 years ago

4 0

Answer:

2.24 seconds

Explanation:

xf = xo + vo t + 1/2 at^2

45 = 0 + 15 t + 1/2 (4.5) t^2

2.25 t^2 + 15t - 45 = 0 Quadratic formula shows t = 2.24 seconds

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What is your acceleration while sitting in your chair. the latitude of corvallis is 44.4˚.?

marta [7]

<span>You can start with the equations you know

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r=Rcos(44.4)
r=6378.1cos(44.4)
r= 4556.978198 km or 4556978 m

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3 years ago

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Likurg_2 [28]

Answer:

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An Olympic diver springs off of a high dive that is 3 m above the surface of the water. When she lands in the water she is trave

klemol [59]

Answer: $u=4.51 m/s\ at\ angle\ of\ \theta =59.34^{\circ}$

Explanation:

Given

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Considering Vertical motion

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here $v=8.9\sin (75)$

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$(8.9\sin (75))^2-(u\sin \theta )^2=2\times 9.8\times 3$

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Divide 2 and 1 we get

$\tan \theta =\frac{3.886}{8.9\cos (75)}$

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$\theta =59.34^{\circ}$

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3 years ago

Which level of organization is formed when a group of organs work together to perform complex functions?

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C) Organ system.

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How much energy is required to ionize hydrogen when it is in the n = 5 state?

PtichkaEL [24]

Answer:

0.544 eV

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To ionize the hydrogen atom $n_f\rightarrow infinte$

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So $\Delta E=13.6\frac{1}{n_i^2}$

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3 years ago