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Ulleksa [173]
3 years ago
8

after 2 hours the displacement of a car is 160km north the initial displacement of the car is 0. what is the average velocity of

the car​
Physics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

D

Explanation:

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A Carnot engine absorbs 1, 3 MJ of heat at 427 degree C and exhausts heat to a reservoir at 90 degree C. How much work does it d
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A massless spring with spring constant 16.4 N/m hangs vertically. A body of mass 0.193 kg is attached to its free end and then r
svet-max [94.6K]

Answer:

(A) 0.2306 m

(B) 1.467 Hz

(C) 0.1152 m

Explanation:

spring constant (K) = 16.4 N/m

mass (m) = 0.193 kg

acceleration due to gravity (g) = 9.8 m/s^{2}

(A) force = Kx,  where x = extension

   mg = Kx

   0.193 x 9.8 = 16.4x

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  now the mass actually falls two times this value before it gets to its equilibrium position ( turning  point ) and oscillates about this point

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(B) frequency (f) = \frac{1}{2π} x \sqrt{\frac{k}{m}}

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(C) the amplitude is the maximum position of the mass from the equilibrium position, which is half the distance the mass falls below the initial length of the spring

= \frac{0.2306}{2} =  0.1152 m

8 0
3 years ago
28.25 mL, three signicant digits
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Explanation:

3 0
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