Investigar la función de los espejos esféricos y como funciona, en el microscopio.

In the diagram below, what is the property of the wave indicated by the letter A? a.Crest

Ugo [173]

Do you have a picture of the diagram that I could view?

4 0

3 years ago

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Atoms are known to form charges due to their ability to gain and lose electrons in reactions. As a result, atoms

galben [10]

Answer:

C. Fe: 24 electrons

Explanation:

From the analogy given, the atom with a charge of +2 is Fe having 24 electrons.

To calculate the charges on an atom;

Number of charges = Number of protons - Number of electrons.

O: 10 electrons: 8 protons = 8 - 10 = -2

N: 10 electrons; 7 protons = 7 - 10 = -3

Cl: 18 electrons; 17 protons = 17 - 18 = -1

So;

Fe: 24 electrons and 26 protons = 26 -24 = +2

Therefore, the solution is Fe

7 0

3 years ago

If you set the cruise control of your car to a certain speed and take a turn, the speed of the car will remain the same. Is the

Bumek [7]

Answer:

Yes, the car has acceleration.

Explanation:

Acceleration is defined as the rate of change of velocity. The velocity is a vector quantity. If a car is moving with constant speed but taking a turn, it means the velocity is changing, so the car have some acceleration.

5 0

3 years ago

A) A mass spectrometer has a velocity selector that allows ions traveling at only one speed to pass with no deflection through s

KengaRu [80]

Answer:

(A). The speed of the ions is $1.2\times10^{6}\ m/s$

(B). The radius of curvature of a singly charged lithium ion is $2.0\times10^{6}\ m$

Explanation:

Given that,

Electric field = 60000 N/C

Magnetic field = 0.0500 T

(A). We need to calculate the velocity

For no deflection

$F_{E}=F_{B}$

$Eq=Bqv$

$v = \dfrac{E}{B}$

$v=\dfrac{60000}{0.0500}$

$v=1.2\times10^{6}\ m/s$

(B). We need to calculate the radius

Using magnetic force balance by centripetal force

$Bqv=\dfrac{mv^2}{r}$

$r=\dfrac{mv^2}{Bqv}$

Put the value into the formula

$r=\dfrac{1.16\times10^{-26}\times(1.2\times10^{6})^2}{0.0500\times1.6\times10^{-19}}$

$r=2.0\times10^{6}\ m$

Hence, (A). The speed of the ions is $1.2\times10^{6}\ m/s$

(B). The radius of curvature of a singly charged lithium ion is $2.0\times10^{6}\ m$

6 0

3 years ago

Why do metals have similar properties?

ra1l [238]

Core electrons are also referred as non-valence electrons. Two different elements have similar chemical properties when they have the same number of valence electrons in their outermost energy level. Elements in the same column of the Periodic Table have similar chemical propertie

5 0

3 years ago