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Tomtit [17]
3 years ago
10

21) Y=2+3 solve for y

Physics
2 answers:
Anastasy [175]3 years ago
7 0

Answer:

This must be harder than it appears or I'm missing something, but as far as I know y=5

Explanation:

gulaghasi [49]3 years ago
3 0
Y=2+3
Y=5

I hope this helps!
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Action potentials _______.(A) are only found at the axon hillock and along the axon.(B) Two of the answers are correct.(C) are v
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Answer:

A

Explanation:

Action potentials are generated at axon hillock because it contains higher density of Na+ channels.From here it is conducted down the axon with equal intensity. It initially depolarizes then polarizes, the order is strict. However, its not affected by the distance they travel.

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3 years ago
Which to particles in an atom are equal in number?
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8 0
4 years ago
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Scrat [10]

Answer:

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The titanium shell of an SR-71 airplane would expand when flying at a speed exceeding 3 times the speed of sound. If the skin of
Fed [463]

Answer:

The 10-meter long rod of an SR-71 airplane expands 0.02 meters (2 centimeters) when plane flies at 3 times the speed of sound.

Explanation:

From Physics we get that expansion of the rod portion is found by this formula:

\Delta l = \alpha\cdot l_{o}\cdot (T_{f}-T_{o}) (Eq. 1)

Where:

\Delta l - Expansion of the rod portion, measured in meters.

\alpha - Linear coefficient of expansion for titanium, measured in \frac{1}{^{\circ}C}.

l_{o} - Initial length of the rod portion, measured in meters.

T_{o} - Initial temperature of the rod portion, measured in Celsius.

T_{f} - Final temperature of the rod portion, measured in Celsius.

If we know that \alpha = 5\times 10^{-6}\,\frac{1}{^{\circ}C}, l_{o} = 10\,m, T_{o} = 0\,^{\circ}C and T_{f} = 400\,^{\circ}C, the expansion experimented by the rod portion is:

\Delta l = \left(5\times 10^{-6}\,\frac{1}{^{\circ}C} \right)\cdot (10\,m)\cdot (400\,^{\circ}C-0\,^{\circ}C)

\Delta l = 0.02\,m

The 10-meter long rod of an SR-71 airplane expands 0.02 meters (2 centimeters) when plane flies at 3 times the speed of sound.

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3 years ago
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olasank [31]

Answer:

Wavelength = 250 m

Explanation:

[ Refer to the attached file ]

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4 years ago
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