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Ber [7]
4 years ago
12

The image produced by an object is –10.0 cm from a concave mirror that has a focal length of 5.0 cm. The distance of the object

from the mirror, rounded to the nearest whole centimeter, is __cm.
Physics
2 answers:
hodyreva [135]4 years ago
8 0

Answer:

3 cm

Explanation:

Gennadij [26K]4 years ago
3 0
Given:
Focal length: 5.0 cm
image produced: -10.0 cm

mirror equation:   1/di + 1/do = 1/f

Look for the actual distance of the object from the mirror. Solve for do.

1/do + 1/(-10) = 1/5
1/do = 1/5 + 1/10
1/do = (1/5 * 2/2) + (1/10 * 1/1)
1/do = 2/10 + 1/10
1/do = 3/10
10 = 3do
10/3 = do
3.33 = do

The distance of the object from the mirror, rounded to the nearest centimeter is 3 cm.
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Answer:

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Explanation:

Given:

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Moment of inertia of the person and the dog will be mr^2.

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⇒ I_y_y=I_d_i_s_k + I_m_a_n+I_d_o_g

⇒ I_y_y=\frac{M_d_i_s_k(R_d_i_s_k)^2}{2} +M_m(r_c)^2+M_d_o_g(R_c)^2

⇒ I_y_y=\frac{129(1.61)^2}{2} +65.7(1.07)^2+27.2(1.31)^2

⇒ I_y_y=289.088\ kg.m^2

The moment of inertia of the system is 289.088 kg.m^2

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