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4 years ago

Which halogen atom has the greatest electron affinity? (a) f (b) cl (c) br (d) i?

Physics

2 answers:

NikAS [45]4 years ago

7 0

A, comment for an explanation

Goshia [24]4 years ago

4 0

I think is letter A but im not sure

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Dos cargas con 2.8(×10-6) C y 7.5(×10-6) C respectivamente se atraen con una fuerza de 10 [N], ¿A qué distancia se encuentran se

Anarel [89]

Answer:

r = 0.137 m

Explanation:

The electric force is given by the Coulomb equation

F = k q₁ q₂ / r²

where k is the constant of Coulomb that is worth 8,988 10⁹ N m²/C², q₁ and q₂ are the charges and r is the distance that separates them

r² = k q₁q₂ / F

r = √ k q₁q₂ / F

let's calculate

r = √ (8.99 10⁹ 2.8 10⁻⁶ 7.5 10⁻⁶⁶ / 10

r = √ (1,8879 10⁻²)

r = 0.137 m

3 0

4 years ago

If you were asked which type of power, generated from a non-renewable resource, has the least negative effect on the environment

melamori03 [73]

Natural gas would be my answer, its non renewable but, can be cleaned up so more than 90ish percent of the pollutants would be cleaned before it was released into the atmosphere

3 0

4 years ago

A swift moving hawk is moving due west with a speed of 30 m/s; 5.0 s later it is moving due north with a speed of 20 m/s.

vaieri [72.5K]

Answer:

See explanation

Explanation:

Now we have;

vi = (-30, 0) m/s

vf = (0, 20) m/s

Δvav= vf - vi= (30, 20) m/s

magnitude of Δvav= √30^2 + 20^2 = 36.0 m/s

Direction = tan-1(20/30) = 33.69°

For aav

aav= Δvav/t = (30/5, 20/5) = (6,4) m/s^2

magnitude of aav = √6^2 + 4^2 = 7.2 m/s^2

direction of aav = tan-1(4/6) = 33.69°

3 0

3 years ago

Type AB blood can donate to what blood types ? ( Select all that apply )

abruzzese [7]

The answer will AB
It is able to do all blood types

6 0

3 years ago

Read 2 more answers

A motorboat sets out for open sea. From home it travels 5 km due East, then heads [N35E] at 2 m/s for 90 minutes. After a break,

geniusboy [140]

The distance of the motorboat relative to the home, which travels in various directions, is 3.07 km.

<h3>What is relative velocity?</h3>

Relative velocity is a velocity of an object which is in respect to another observer, or it is a ratio of change in the position of a point to time with respect to another observer.

Given: Travel in East direction ( $d_{E}$ )= 5 km,