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Juliette [100K]
4 years ago
12

"find the ratio of the gravitational force between two planets if the masses of both planets are tripled but the distance betwee

n them stays the same."
Physics
1 answer:
nevsk [136]4 years ago
8 0
Using F=Gmm/r²
the ratio of their forces remains constant
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A circular loop of wire with a radius of 15.0 cm and oriented in the horizontal xy-plane is located in a region of uniform magne
bekas [8.4K]

Answer:

Explanation:

Given that,

Radius r = 15cm = 0.15m

Area of the circular loop can be determined using the formula for area of a circle

A = π r²

A = π × 0.15²

A = 0.0708 m²

Magnetic field B = 1.2T in positive z direction

B = 1.2 •k T.

If loop is remove from the field in the time interval

∆t = 2.3ms = 2.3×10^-3s

We want to find the average EMF and it is given as

ε = —∆Φ/∆t

The final flux is zero

Φf = 0

Where magnetic flux is given as

Φi = BA Cosθ

Where θ=0 since the area and the magnetic field point in the same direction.

Φi = BA Cos0

Φi = BA

Φi = 1.2 × 0.0708

Φi = 0.0848 Vs

Then, ε = —∆Φ/∆t

ε = —(Φf — Φi) / ∆t

ε = —(0-0.0848) / (2.3×10^-3)

ε = 0.0848 / (2.3×10^-3)

ε = 36.88 V

The EMF is 36.88 Volts

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4 years ago
Eq-48 when operating your vessel with a vhf radio, what channel must you monitor?
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3 years ago
The________ channels sound to the eardrum.
inn [45]
The external auditory meatus, or ear canal, funnels sound to the eardrum. It is part of the outer ear.
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Rules for competitive team sports set which limit?
Tanya [424]

Answer:

the skill level of players

Explanation:

5 0
3 years ago
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In order for us to see the red apple, where do the wavelengths of light have to go?
tankabanditka [31]

Answer:

Explanation:650

colour* wavelength (nm) energy (eV)

red 650 1.91

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