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3 years ago

15

If the mass of the cart was increased but the hanging mass remained the same, how would the acceleration be affected? Explain ho

w you know in terms of net force and system mass.

1 answer:

Margaret [11]3 years ago

6 0

Answer:

It is always said that mass is same everywhere.

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A car moving has a speed of 35 m/s. What acceleration would it have if it took 5.0 s to come to a complete stop?

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3 years ago

A long, solid rod 5.3 cm in radius carries a uniform volume charge density. Part A If the electric field strength at the surface

Blizzard [7]

Answer:

$\rho = 7.35\times \muC/m^3$

Explanation:

given,

Radius of the solid rod, R = 5.3 cm

Electric field strength,E = 22 kN/C

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From Gauss law

$E = \dfrac{Rl}{2\epsilon_0}$

ε₀ is the permitivity of free space

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and also,

$\rho=\dfrac{2E\epsilon_0}{R}$

ρ is the volume charge density

$\rho=\dfrac{2\times 22\times 10^{3}\times 8.854\times 10^{-12}}{0.053}$

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Hence, the volume charge density is equal to $\rho = 7.35\times \muC/m^3$

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3 years ago