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k0ka [10]
3 years ago
11

What three ways are molecules used when they are stored for energy?

Physics
1 answer:
Dafna11 [192]3 years ago
6 0
Speed, agility, physical activity
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Water is a compound.<br> O A. True<br> B. False
puteri [66]
True because , a compound forms when two or more atoms form a chemical bond and the chemical formula for water is H2O which means each molecule of water consists of one oxygen atom
7 0
3 years ago
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1. An EM wave representing 650 nm laser light is traveling in the +zˆ direction. At one point in space and time, the electric fi
ivann1987 [24]

Answer:

Explanation:

a ) Direction of the magnetic field will be in positive x direction.

The direction of the vector E X B gives the direction of motion of wave.

b ) Magnitude of magnetic field is given by the relation

E₀ / B₀ = c , c is velocity of light

B₀ = E₀ / c

= 20 / (3 x 10⁸)

= 6.67 x 10⁻⁸ T

c ) Average power flowing per unit area by this wave is called Poynting vector

c ε₀E₀² , ε₀ = 8.85X10⁻¹²

= 3 X 10⁸ X 8.85 X 10⁻¹² X 20²

= 1.062 W m⁻²

5 0
3 years ago
Match the sentences in Column A based on whether they describe radio waves, visible light waves, or both (Column B). Column A 1.
Andrew [12]
<span>1. They’re invisible - RADIO WAVES

2. They have colors. - VISIBLE LIGHT WAVES

3. They’re used to learn about dust and gas clouds. - BOTH

4. They can travel in a vacuum. </span> - BOTH<span>

5. They’re used to find the temperature of stars. </span>- VISIBLE LIGHT WAVES<span>

 6. They have energy. </span> - BOTH
8 0
3 years ago
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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}

<u><em>Entonces la velocidad de la motocicleta es </em></u>259.18 \frac{km}{h}<u><em></em></u>

8 0
3 years ago
When can a car have no acceleration but still be moving
gregori [183]

Answer:

A. A car can still be moving without acceleration when it has some velocity.

B. A car can come to a stop when moving itself when it has some de acceleration.

C.A ca can start at 0 m/s and speed up to 15 m/s when it has some acceleration.

Explanation:

A. since the car has no acceleration the velocity of the car would help it moving.

B. when the car is moving with some velocity but coming to a stop this is possible of and only if it has some de acceleration

C. since the speed of the car increases from 0 to 15 m/s acceleration is involved. If the speed was constant there would be no acceleration involved.

5 0
3 years ago
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