A slide projector has a magnification of 50. How wide will the projected image be if the slide is 2.8 cm wide?

Physics

1 answer:

Artist 52 [7]3 years ago

7 0

Answer:

hi = 12mm or 1.2cm

Explanation:

XOXO

Kit ^w^

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nasty-shy [4]

Explanation:

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3 years ago

In a long straight wire, what current is required to exert a 1.0μN force on a 1.0μC charge moving at 1.5×106m/s parallel to the

Bas_tet [7]

Answer:

Current in the wire is given as

$i = 1.17 \times 10^{-7} A$

Explanation:

magnetic field due to long current carrying wire is given as

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so we have magnetic force on moving charge is given as

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so we have

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3 years ago

A bug of mass 2.2 g is sitting at the edge of a cd of radius 3.0 cm. if the cd is spinning at 280 rpm, what is the angular momen

m_a_m_a [10]

M = 2.2 g = 2.2 x 10⁻³ kg, the mass of the bug.
r = 3.0 cm = 0.03 m, the radial distance from the center.

The angular speed is
ω = 280 rpm
= (280 rev/min)*(2π rad/rev)*(1/60 min/s)
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I = mr²
= (2.2 x 10⁻³ kg)*(0.03 m)²
= 1.98 x 10⁻⁶ kg-m²

Calculate the angular momentum of the bug.
J = Iω
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Answer: 5.806 x 10⁻⁵ (kg-m²)/s

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4 years ago

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astra-53 [7]

Answer:0

Explanation:

Given

two particles of mass m and 3m

They move towards each other with velocity v

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