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3 years ago

If the sum of all the forces acting on a car is zero, then the speed of the car?

1 answer:

Taya2010 [7]3 years ago

7 0

Answer: If all forces acting on a car are zero, than the cars speed is zero since there are no forces to push or pull the car :)

Explanation:

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A uniform charge density of 509 nC/m3 is distributed throughout a spherical volume of radius 6.03 cm. Consider a cubical Gaussia

Artemon [7]

Explanation:

(a) It is known that relation between charge and volume is as follows.

$q_{enclosed} = \rho V_{cube}$

= $(509 \times 10^{-9} C/m^{3}) \times (0.04 m)^{3}$

= $509 \times 10^{-9} \times 6.4 \times 10^{-5}$

= $3.26 \times 10^{-11} C$

Now, according to Gauss's law

$\phi = \frac{q_{enclosed}}{\epsilon_{o}}$

= $\frac{3.26 \times 10^{-11} C}{8.85 \times 10^{-12}C^{2}N^{-1}m^{-2}}$

= 3.68 $N m^{2}/C$

Hence, the electric flux through this cubical surface if its edge length is 4.00 cm is 3.68 $N m^{2}/C$ .

(b) Similarly, we will calculate the electric flux when edge length is 16.8 cm as follows.

$q_{enclosed} = \rho V_{cube}$

= $(509 \times 10^{-9} C/m^{3}) \times (0.168 m)^{3}$

= $509 \times 10^{-9} \times 4.74 \times 10^{-3}$

= $2.41 \times 10^{-11} C$

Now, according to Gauss's law

$\phi = \frac{q_{enclosed}}{\epsilon_{o}}$

= $\frac{2.41 \times 10^{-11} C}{8.85 \times 10^{-12}C^{2}N^{-1}m^{-2}}$

= 2.72 $N m^{2}/C$

Therefore, the electric flux through this cubical surface if its edge length is 4.00 cm is 2.72 $N m^{2}/C$ .

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4 years ago

Which of Franz Mesmer’s claims about his mesmerism abilities eventually led to his downfall?

MrMuchimi

He can mesmerize as well as magnatize trees, this is what he claims would lead to his downfall.

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A sphere is charged with electrons to −9 × 10−6 C. The value given is the total charge of all the electrons present in the sphere. To calculate the number of electrons in the sphere, we divide the the total charge with the charge of one electron.

N = 9 × 10−6 C / 1.6 × 10−19 C
N = 5.6 x 10^13

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3 years ago

A graph of gas pressure versus the number of particles in a container is straight line.which other relationship will have a simi

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The answer here could be pressure vs. temperature.

Think of PV=nRT. T is related to P the same way as n is (assuming all other variables are kept constant).

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Instructions:Select the correct answer. A meteor is approaching Earth. Which statement about its motion is true? The meteor trav

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4 years ago

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