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Serga [27]
3 years ago
14

Bone has a Young’s modulus of about

Physics
1 answer:
MArishka [77]3 years ago
6 0

Answer:

Explanation:

Bone has a Young’s modulus of about

1.8 × 1010 Pa . Under compression, it can

withstand a stress of about 1.66 × 108 Pa before breaking.

Assume that a femur (thigh bone) is 0.56 m

long, and calculate the amount of compression

this bone can withstand before breakin :).

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A grasshopper hops along a level road. on each hop, the grasshopper launches itself itself at an angle of 45 degrees. and achiev
Harman [31]

Answer: 1.9 m/s


Explanation:


1) Data:

height, y = 0

range, x = 0.77m

angle, α = 45°

question, horizontal velocity, Vox = ?


2) Physical principles and formulas

Projectile motion.

y=V_{0y}t-gt^{2} /2\\ \\ x=V_{0x}t\\ \\ V_{0y}=V_0sin\alpha \\ \\ V_{0x}=V_0cos\alpha


3) Solution

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y=0=V_0sin(45)t-gt^{2} /2


Factor


0=t[V_0sin(45)-gt/2]


Discard t = 0 and solve for the other factor:


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Vx=V_{0x}=V_{0}cos(45)=2.75(\sqrt{2} /2]=1.9


Vx = 1.9m/s ← answer

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