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zheka24 [161]
3 years ago
7

How much is the pressure exerted at a point where a ball- pointed pen of area 1mm 2 is pushed against the paper with a force of

24 N
Physics
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

Please find the attached pdf

Explanation:

Download pdf
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8 0
3 years ago
A 0.46-kg cord is stretched between two supports, 7.2 m apart. When one support is struck by a hammer, a transverse wave travels
Kryger [21]

Answer:

      T = 6.0 N

Explanation:

given,

mass of the cord = 0.46 Kg

length of the supports = 7.2 m

time taken to travel = 0.74 s

tension in the chord = ?

using formula for tension calculation

T = \dfrac{v^2.m}{l}

v = \dfrac{l}{s}

v = \dfrac{7.2}{0.74}

v = 9.73 m/s

now, calculation of tension

T = \dfrac{9.73^2\times 0.46}{7.2}

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The tension in the cord is equal to 6.0 N.

7 0
3 years ago
A person is standing on a scale in an unmoving elevator. The elevator starts to move upwards at 1 m/s squared. Is the scale read
timama [110]

Answer: GREATER

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HENCE

F-W =ma

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HENCE GREATER

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3 years ago
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