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2 years ago

Which of the following is an example of chemical change?

Physics

2 answers:

Maru [420]2 years ago

8 0

Answer:

Explanation:

all the others r physical

Svet_ta [14]2 years ago

6 0

C.
New chemicals are being formed, which indicates a chemical change.

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Please help !! In the diagram, q1 = +0.00200 C, q2 = 0.00180 C, and q3 = +0.00830 C. the net force on q2 is zero. how far is q2

VikaD [51]

Answer:

2.03715

Explanation:

$32364=8.99\cdot 10^9\cdot \frac{0.00180\cdot 0.00830}{2.03715^2}$

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3 years ago

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alexdok [17]

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Earth's surface forms because of this reason:

The spinning of Earth's outer core causes the lithosphere to break into individual plates and collide with each other.

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2 years ago

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2 years ago

6. The bat hits a ball. What is the

lana [24]

Answer:

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Explanation:

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2 years ago

A potential difference of 53 mV is developed across the ends of a 12.0-cm-longwire as it moves through a 0.27 T uniform magnetic

Klio2033 [76]

Answer:

The angle between the magnetic field and the wire’s velocity is 19.08 degrees.

Explanation:

Given that,

Potential difference, V = 53 mV

Length of the wire, l = 12 cm = 0.12 m

Magnetic field, B = 0.27 T

Speed of the wire, v = 5 m/s

Due to its motion, an emf is induced in the wire. It is given by :

$\epsilon=Blv\sin\theta$

Here,

$\theta$ is the angle between magnetic field and the wire’s velocity

$\sin\theta=\dfrac{\epsilon}{Blv}\\\\\sin\theta=\dfrac{53\times 10^{-3}}{0.27\times 0.12\times 5}\\\\\sin\theta=0.327\\\\\theta=19.08^{\circ}$

So, the angle between the magnetic field and the wire’s velocity is 19.08 degrees.

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2 years ago