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Greeley [361]
3 years ago
15

If Mary is 3m from her reflection, how far is mary from the mirror?

Physics
1 answer:
Dima020 [189]3 years ago
7 0

Answer:

3m duh

Explanation:

because if she's 3m from her reflection she's obviously 3m away from the mirror

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Two conducting parallel plates 5.0 × 10−3 meter apart are charged with a 12-volt potential
photoshop1234 [79]

Answer: 2.4×10^-3 v/m

Explanation: distance between plates of capacitor (d) =5.0×10^-3m

Potential difference between plates (v) = 12v

Force on electronic charge (f) = 3.8×10^-16 N

Strength of electric field (E) =?

The formulae that relates potential difference, eoectiic field strength and distance between plates is given as

v = Ed

By substituting the parameters, we have that

12 = E × 5.0×10^-3

E = 12/ 5.0 × 10^-3

E = 2.4×10^-3 v/m

7 0
3 years ago
A 9.0 kg bowling ball races down the lane at 15 m/s before striking a bowling pin (at rest) with a mass of 0.85 kg. If the 0.85
artcher [175]

Answer:

v = 10.75\,\frac{m}{s}

Explanation:

The system ball-pin is modelled by the Principle of Moment Conservation:

(9\,kg)\cdot (15\,\frac{m}{s} ) + (0.85\,kg)\cdot (0\frac{m}{s} ) = (9\,kg)\cdot v + (0.85\,kg)\cdot (45\,\frac{m}{s} )

The velocity of the bowling ball after the collision is:

v = 10.75\,\frac{m}{s}

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Select the correct answer. An object has one force acting on it. It is a 33-newton force pointing downward. To create a net forc
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Chen is testing the friction of three surfaces. He pushes the same ball across three different surfaces with the same force and
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Answer:

im no proffesional

Explanation:

but i tghink you need a proffessional for this one

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When magma cools quickly, what kind of texture or
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Answer:

a

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