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3 years ago

What force cause the rod to become charged

Physics

1 answer:

gtnhenbr [62]3 years ago

6 0

Answer:

electricity

If a rod is charged it is because of the electrical force acting on it

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Calculate the acceleration of a 500g mass<br>

AnnZ [28]

Answer: there can't be acceleration when there is no movement

Explanation:

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3 years ago

You drive in a straight line at 24.0 m/s for 10.0 miles, then at 30.0 m/s for another 10.0 miles. Part A Is your average speed 2

aliina [53]

Answer:

less than 27 m/s

Explanation:

The average speed would be total distance (10 + 10 = 20 miles = 32000 m) over total time

The time it takes you to drive the first 10 miles (16000 m) at 24m/s is

16000 / 24 = 666.67 s

The time it takes you to drive the 2nd 10 miles (16000 m) at 30 m/s is

16000 / 30 = 533.33 s

The average speed is

$v = \frac{16000 + 16000}{666.67 + 533.33} = \frac{32000}{1200} = 26.67 m/s$ < 27 m/s

So your average speed is less than 27 m/s

6 0

3 years ago

A flat coil of wire has an area A, N turns, and a resistance R. It is situated in a magnetic field, such that the normal to the

Phantasy [73]

Answer:

3.4 x 10^-4 T

Explanation:

A = 1.5 x 10^-3 m^2

N = 50

R = 180 ohm

q = 9.3 x 106-5 c

Let B be the magnetic field.

Initially the normal of coil is parallel to the magnetic field so the magnetic flux is maximum and then it is rotated by 90 degree, it means the normal of the coil makes an angle 90 degree with the magnetic field so the flux is zero .

Let e be the induced emf and i be the induced current

e = rate of change of magnetic flux

e = dФ / dt

i / R = B x A / t

i x t / ( A x R) = B

B = q / ( A x R)

B = (9.3 x 10^-5) / (1.5 x 10^-3 x 180) = 3.4 x 10^-4 T

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4 years ago

he membrane that surrounds a certain type of living cell has a surface area of 6.0 x 10-9 m2 and a thickness of 1.6 x 10-8 m. As

k0ka [10]

Answer:

$1.54481175\times 10^{-12}\ C$

Explanation:

$\epsilon_0$ = Permittivity of free space = $8.85\times 10^{-12}\ F/m$

A = Area = $6\times 10^{-9}\ m^2$

d = Thickness = $1.6\times 10^{-8}\ m$

k = Dielectric constant = 5.4

V = Voltage = 86.2 mV

Charge is given by

$Q=CV\\\Rightarrow Q=k\epsilon\dfrac{A}{d}V\\\Rightarrow Q=5.4\times 8.85\times 10^{-12}\times \dfrac{6\times 10^{-9}}{1.6\times 10^{-8}}\times 86.2\times 10^{-3}\\\Rightarrow Q=1.54481175\times 10^{-12}\ C$

The charge on the outer surface is $1.54481175\times 10^{-12}\ C$

4 0

3 years ago

Why does Farm Bureau and other advocacy organization oppose any mandated labeling of biotech crops?

Step2247 [10]

Answer:

I’m. Nog sure

Explanation:

3 0

3 years ago