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melomori [17]
3 years ago
11

If the mass of a material is 114 grams and the volume of the material is 13 cm3, what would the density of the material be?

Physics
1 answer:
laila [671]3 years ago
4 0
114/13=m/v=d
d=8.7692 g/cm^3
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ANSWER:

F(h)= 230 N is the horizontal force you will need to move the pickup along the same road at the same speed.

STEP-BY-STEP EXPLANATION:

F(h) is Horizontal Force = 200 N

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The total weight increase by 42%

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Since the velocity is constant so acceleration is zero; a=0

Now the horizontal force required to move the pickup is equal to the frictional force.

F(h) = F(f)

F(h) = mg* u

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Since weight increases by 42% and friction coefficient decreases by 19%

New weight = 1+0.42 = 1.42 = (1.42*m*g)

New friction coefficient = μ = 1 - 0.19 = 0.81 = 0.81 u

F(h) = (0.81μ) (1.42 m g)

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       = 230 N

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