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3 years ago

A manganese atom is pictured below.

Physics

2 answers:

Lilit [14]3 years ago

7 0

Answer:

Explanation:

Rufina [12.5K]3 years ago

5 0

Manganese has 2 (two) electron that would free floating and able to form a metallic bond.
The electronic configuration of manganese is (Ar) 3d5 4s2. The two electron in 4s orbital are the valence electron which can freely move from one place to another.

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Hey stob it.<br> Please help me.<br> Cmon help me.<br> Plz.

Anna [14]

Answer:

3) D: 31 m/s

4) D: 84.84 metres

Explanation:

3) Initial velocity along the x-axis is;

v_x = v_o•cos θ

Initial velocity along the y-axis is;

v_y = v_o•sin θ

Plugging in the relevant values, we have;

v_x = 31 cos 60

v_x = 31 × 0.5

v_x = 15.5 m/s

Similarly,

v_y = 31 sin 60

v_y = 31 × 0.8660

v_y = 26.85 m/s

Thus, magnitude of the initial velocity is;

v = √(15.5² + 26.85²)

v ≈ 31 m/s

4) Formula for horizontal range is;

R = (v² sin 2θ)/g

R = (31² × sin (2 × 60))/9.81

R = 84.84 m

6 0

3 years ago

When the amount of a radioactive substance is reduced by 50%, what has occurred? a half-life beta radiation alpha radiation gamm

Vinil7 [7]

This is the half life of the substance. The half life is the time it takes for the substance to become reduced by half as a consequence of decay.

5 0

3 years ago

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Consider a mass initially moving at 7.50 m/s. How does it take to move 3.5 km (Be sure to convert to meters) if it accelerates a

Tomtit [17]

The mass is moving by uniformly accelerated motion, with initial velocity $v_i=7.50 m/s$ and acceleration $a=0.55 m/s^2$ . Its position at time t is given by the following law:
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If we put $x(t)=d=3.5 km=3500 m$ into the equation, the corresponding time t is the time it takes for the mass to travel this distance:
$\frac{1}{2}at^2+v_it-d=0$
$4.9t^2+7.5t-3500 =0$
And the two solutions for the equation are:
$t=-25.5 s$ --> negative, we can discard it
$t=24.0 s$ --> this is the solution to our problem

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4 years ago

How do you measure the volume of irregular object? explain with diagram

masya89 [10]

Answer:

by using graphical meythod

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3 years ago

Which is an example of convection currents?

Levart [38]

Answer:
B
Explanation:
because, convection is the transfer of heat between fluid substances/materials

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