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lapo4ka [179]
4 years ago
8

Animal cells contain all of the following structures EXCEPT a

Physics
2 answers:
ololo11 [35]4 years ago
3 0
Except a Chlorophyll, cell wall, vacuole ...........you can choose any of them
alexgriva [62]4 years ago
3 0
Yeah I think it is Cell wall
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When driving at night switch to low-beams whenever you come within ___ ft of an oncoming vehicle.
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A .2kg Basketball is pitched with a velocity or 40 m/s and then bed and into the picture with a velocity of 60 m/s. What is the
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Answer:

40kgm

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A roller coaster car starts from rest at the top of a hill 15 m high and rolls down to ground level. From there it starts into a
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955.5N

Explanation:

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F_N = F_C - F_G = m\frac{v^{2} }{r} - mg

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radius of the loop r = 4m

velocity v = ?

g = 9.8 m/s²

To find the centripetal force, you need to find the velocity of the car at the top of the loop.

Use energy conservation:

E_{tot}=mgh + \frac{1}{2} mv^{2}

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E_{tot}= mgh_{hill}

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E_{tot}=mgh_{loo}_p +\frac{1}{2} m v^{2}

Setting both energies equal and canceling the mass m gives:

gh_{hill} = gh_{loo}_p + \frac{1}{2} v^{2}

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v^{2} = 2g(h_{hill}-h_{loo}_p)

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3 years ago
Please give a explanation if possible Tysm!
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