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Anna11 [10]
3 years ago
11

Group one on the periodic table shares which characteristics.?

Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0
Group one on the periodic table, also known as the alkali metals, all:
- form ions with a charge of +1
- display similar extreme chemical behaviour
- have typical metallic properties
- are far too reactive to be found naturally in their pure forms
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The Answer Is The Small Intestine

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1.After striking the ball, it is important to ______.
egoroff_w [7]

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1=A 2=3 3=Badmintion

Explanation:

I think I'm correct on these

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A light source of wavelength \lambdaλ illuminates a metal with a work function of \text{BE} = 2.00 ~\text{eV}BE=2.00 eV and ejec
dsp73

Answer:

1 eV

Explanation:

Given:

Work function, ∅ = 2.00 eV

Kinetic energy of the ejected of the electron, K.E = 4.0 eV

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thus, we have

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Now,

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thus,

E' = hc/λ'

or

E' = hc/2λ

or

E' = E/2 = 6/2 = 3 eV

also,

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3 = 2 + KE'

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5 0
3 years ago
A 3.70 kg block moving 2.09 m/s right hits a 2.42 kg block moving 3.92 m/s left. Find the total momentum of the system.
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-1.7534 Kg.m/s

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3 years ago
The colors of the stars in the sky range from red to blue. Assuming that the color indicates the frequency at which the star rad
Crazy boy [7]

Answer:

a) 4458K b) 5048K, c) 6166K, d) 5573K

Explanation:

The temperature of the stars and many very hot objects can be estimated using the Wien displacement law

    \lambda_{max} T = 2,898 10⁻³ [m K]

    T = 2,898 10⁻³ / \lambda_{max}

a) indicate that the wavelength is

    Lam = 650 nm (1 m / 109 nm) = 650 10⁻⁹ m

    Lam = 6.50 10⁻⁷ m

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    T = 4,458 10³ K

    T = 4458K

b) lam = 570 nm = 5.70 10⁻⁷ m

    T = 2,898 10⁻³ / 5.70 10⁻⁷

    T = 5084K

c) lam = 470 nm = 4.70 10⁻⁷ m

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d) lam = 520 nm = 5.20 10⁻⁷ m

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    T = 5573K

5 0
4 years ago
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