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frozen [14]
3 years ago
9

3. The coefficient of kinetic friction between an object and the surface upon which it is sliding is

Physics
1 answer:
Neporo4naja [7]3 years ago
8 0

Answer:

2

Explanation:

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Which best describes a chain reaction associated with a nuclear reaction?
Free_Kalibri [48]
The correct answer for the question that is being presented above is this one: "A) self-sustaining." The term that <span>best describes a chain reaction associated with a nuclear reaction is self-sustaining.</span>
Here are the following choices:
<span>A) self-sustaining
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5 0
3 years ago
A cyclist is riding a bicycle at a speed of 22 mph on a horizontal road. The distance between the axles is 42 in., and the mass
stealth61 [152]

Answer:

The shortest distance is  S = 24.86 ft

Explanation:

The free body diagram of this question is shown on the first uploaded image

From the question we are told that

   The speed of the bicycle is v_b = 22\ mph = 22 * \frac{5280}{3600}   =  32.26 ft/s

     The distance between the axial is  d = 42 \ in

The mass center of the cyclist and the bicycle is m_c = 26 \ in  behind the front axle

The mass center of the cyclist and the bicycle is m_h = 40 \ in above the ground

   For the bicycle not to be thrown over the

     Momentum about the back wheel must be zero so

                \sum _B = 0

=>             mg (26) = ma(40)

=>             a = \frac{26}{40} g

Here  g = 32.2 ft/s^2

     So     a =  \frac{26}{40} (32.2)

             a =  20.93 ft/s^2

Apply the equation of motion to this motion we have

       v^2 = u^2 + 2as

 Where  u = 32.26 ft /s

             and v = 0 since the bicycle is coming to a stop

        v^2 = (32.26)^2 - 2(20.93) S

=>      S = 24.86 ft        

                 

5 0
3 years ago
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insens350 [35]
The tension of cold icebergs rubbing creates heat and it can also be how large the quantity is
3 0
4 years ago
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Dandre expands 120w of power in moving a couch 15 meters in 5 seconds how much force does he exert ?
netineya [11]

Answer:

The answer is 40 N for APX

Explanation:

6 0
3 years ago
A 1,200 kg car travels at 20 m/s. what is it’s momentum ?
Montano1993 [528]

Answer:

24000 kg·m/s

Explanation:

Momentum is Mass x Velocity, so 1200 kg time 20 m/s =  24000 kg-ms/s

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