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laiz [17]
3 years ago
14

Hinge Joints-These jointscan only move in one direction, like a door hinge. One bone works against another. Movement is back and

forth on one plane.
Examples:_____________________________________
Physics
1 answer:
prisoha [69]3 years ago
6 0
Hinge joints would be your elbow, your knee and, believe it or not, your ankle as well!
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I think this is right I hope this is right for you

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In addition to light and chlorophyll photosynthesis requires
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Answer:

Water (H₂O) and Carbon dioxide (CO₂)

Explanation:

Photosynthesis usually refers to the process by which the green plants can synthesize their own food in the presence of sunlight, water, carbon dioxide, and light. This process helps in the conversion of light energy into chemical energy.

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A 20-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 26 n. starting from rest, the sle
Vesna [10]
Good morning.

We calculate the acceleration with the <em>Torricelli equation</em>:

\star\  \boxed{\mathsf{V^2 = V_0^2 + 2a\Delta S}}

We see that:

\begin{cases}\mathsf{V_0 = 0}\\\mathsf{V = 2.3 \ m/s}\\\mathsf{\Delta S = 8.9 \ m}\end{cases}

Now:

\mathsf{(2.3)^2 = 0^2 + 2a\cdot 8.9}\\ \\ \mathsf{5.29 = 17.8a}\\ \\ \bold{\mathsf{a = 0.3 \ m/s^2}}


Now we can calculate the resultant force that makes that acceleration of 0.3 m/s² with the 2nd Law of Newton:

\mathsf{F_r = m\cdot a}\\ \\ \mathsf{F_r = 20\cdot 0.3}\\ \\ \mathsf{F_r = 6 \ N}


We have a force of 26 N → and a friction force F ←. Adding those vectors, he have  a force 6 N →. Therefore:

26 - F = 6

F = 20 N


We have a friction force of 20 N. We calculate the kinect coefficient with the formula:

\star \ \boxed{\mathsf{F = \mu_k N}}


Since we are in a horizontal plane, we hava that N = P = mg = 200 N

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\mathsf{20 = \mu_k 200}\\ \\ \boxed{\boxed{\mathsf{\mu_k = 0.1}}}
5 0
3 years ago
An airplane traveling at half the speed of sound emits a sound of frequency 5.84 kHz. (a) At what frequency does a stationary li
sergejj [24]

Answer:

Stationary listener frequency = 77.68 kHz

Explanation:

Given:

Speed of airplane = 344/2 = 172 m/s

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Computation:

f0 = fs[(v+v0)/(v-vs)]

f0 = 5.84[(344+0)/(344-172)]

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Stationary listener frequency = 77.68 kHz

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2 years ago
Moving towards the head means it is moving in a ________ direction.
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Up ward direction...


Positive direction


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