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disa [49]
3 years ago
11

An 12 N force is applied to a 1 kg object. What is the magnitude of the objects acceleration?

Physics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

a=12 m/s²

Explanation:

Newton's second law of motion states that the acceleration of a body is directly proportional to the force applied and takes place in the direction of force.

This can be summarized as: F=ma, where m is the mass of the object on which force F acts. a is the acceleration due to the force applied.

12N= 1kg×a

a=12N/1kg

a=12m/s²

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3 years ago
Find the wavelength of the balmer series spectral line corresponding to n = 15.
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Answer:

371.2 mm

Explanation:

The Balmer series of spectral lines is obtained from the formula

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1/λ = 1.097 × 10⁷ m⁻¹(1/2² -1/15²)

    = 1.097 × 10⁷ m⁻¹(1/4 -1/225)

    = 1.097 × 10⁷ m⁻¹(0.25 - 0.0044)

    = 1.097 × 10⁷ m⁻¹ 0.245556

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λ  = 1/2.693 10⁶ m⁻¹

    = 0.3712 10⁻⁶ m

    = 371.2 mm

7 0
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