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saul85 [17]
3 years ago
15

Ten identical steel wires have equal lengths L and equal "spring constants" k. The Young's modulus of each wire is Y. The wires

are connected end to end, so that the resultant wire has length 10L. What is the Young's modulus of the resulting wire?
Physics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

Y

Explanation:

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A 1.45 kg falcon catches a 0.515 kg dove from behind in midair. What is their velocity after impact if the falcon's velocity is
True [87]

Answer:

Their velocity after the impact is 20.85 m/s.                            

Explanation:

Given that,

Mass of falcon, m_1=1.45\ kg

Mass of dove, m_2=0.515\ kg

Initial speed of the falcon, u_1=26.5\ m/s

Initial speed of the dove, u_2=4.95\ m/s

We need to find the final velocity after the impact. When the falcon catches the dove, it will becomes the case of inelastic collision. The conservation of momentum will be :

m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\V=\dfrac{1.45\times 26.5+0.515\times 4.95}{(1.45+0.515)}\\\\V=20.85\ m/s

So, their velocity after the impact is 20.85 m/s.                          

8 0
3 years ago
A soft drink (mostly water) flows in a pipe at a beverage plant with a mass flow rate that would fill 220 0.355 - L cans per min
Yuki888 [10]

Answer:

A. To find the mass flow rate.

We use= 220 x 0.355/ 60

= 1.3kg/s

B. Volume flowrate is = mass flowrate / density

But density is 1000kg/m³

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C. Flow speead at 1

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= 6.5m/s

D.flow speed at 2

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=1.63m/s

E. Gauge pressure at point 1

= 152+ 1/1000 ( 1.63)²- 6.5² + 1000( 9.8) ( 0-1.35)

= 119kpa

7 0
3 years ago
Explain why energy is needed in active transport.
alexira [117]
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8 0
4 years ago
What is clinograph and how to read it​
zhenek [66]

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Hope this helps!:)
4 0
3 years ago
Read 2 more answers
A plane flies 600 kilometers away from its bad at 400 meters per second then flies back to its base at 600 meters per second. Wh
tester [92]
Seems to me that it flies 400 m/s there and 600 m/s back the same distance.
therefore the average of 400 and 600 is 500 m/s.  The distance is the same so the normal formula of (d2-d1)/(t2-t1) is applicable.
4 0
4 years ago
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