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2 years ago

Several types of radiation may be emitted during radioactive decay. The equation represents

Physics

2 answers:

vovangra [49]2 years ago

7 0

Answer:

The equation represents the origin of a beta particle from the nucleus of an atom. Beta particles are fast moving electrons; they have a negative charge and originate when a neutron decomposes into a protons, which remains behind in the nucleus, and an electron.

Explanation:

Fittoniya [83]2 years ago

5 0

I think the answer is B

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Two people travel from Columbus to Cleveland, one by car at an average velocity of 90km/h, and one by plane at an average veloci

Flura [38]

Answer:

Explanation:

Yes , their displacement may be equal .

Suppose the displacement is AB where A is starting point and B is end point .

The car is covering the distance AB by going from A to B on straight line . On the other hand plane goes from A to C , then from C to D and then from D to B . In this way plane reaches B from A on a different path which is longer than path of the car . In the second case also displacement of plane is AB . In the second case distance covered is longer but displacement is same that is AB .

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2 years ago

Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink? Explain your answer.

Rainbow [258]

The answer to that is the rock will sink

8 0

2 years ago

Read 2 more answers

Which statement about velocity is true?

LekaFEV [45]

Answer:

Velocity has both speed and direction. Speed is constant. ... Speed is measured over time.

Explanation:

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2 years ago

Cora, an electrician, wraps a copper wire with a thick plastic coating. What is she most likely trying to do?

alukav5142 [94]

The correct answer among the choices given is the last option. Cora wrapping the copper wire with a thick plastic coating keeps a current from passing out a wire. The plastic wire here serves as an insulator. An insulator is a material that prevents electricity or current to flow out the circuit. In order to lessen the loss of energy.

HOPE THIS HELPS!

6 0

2 years ago

Read 2 more answers

Una motocicleta viaja con una velocidad constante de 72m/s calcula su velocidad en km/h

Juliette [100K]

Answer:

Entonces la velocidad de la motocicleta es $259.18 \frac{km}{h}$

Explanation:

La regla de tres simple es una operación que ayuda a resolver rápidamente problemas de proporcionalidad, teniendo tres valores conocidos y una incógnita.

Dos magnitudes son directamente proporcionales cuando al multiplicar o dividir una de ellas por un número, la otra queda multiplicada o dividida respectivamente por el mismo número. En otras palabras, dos magnitudes son directamente proporcionales si cuando aumenta una magnitud, también lo hace la otra en la misma proporción o cuando disminuye una magnitud, también lo hace la otra en la misma proporción.

Para resolver una regla directa de tres cuando las magnitudes son directamente proporcionales, se debe seguir la siguiente fórmula:

a ⇒ b

c ⇒ x

Entonces $x=\frac{c*b}{a}$

La regla directa de tres simple es la regla que se aplica en este caso donde hay un cambio de unidades. Para realizar esta conversión de unidades, primero debe saber que 1 m = 0.001 km. Entonces, si 0.001 km es 1 m, ¿cuántos kilómetros son 72 m?

$km=\frac{72 m*0.001 km}{1 m}$

km=0.072

Entonces:

$72\frac{m}{s} =\frac{72 m}{s} =\frac{0.072 km}{s}$

Siendo 1 s=0.0002778 h:

$72\frac{m}{s} =\frac{72 m}{s} =\frac{0.072 km}{s}=\frac{0.072 km}{0.0002778 h}=259.18 \frac{km}{h}$

Entonces la velocidad de la motocicleta es $259.18 \frac{km}{h}$

8 0

2 years ago