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natta225 [31]
3 years ago
15

If a wave vibrates back and forth 12 times each second, what is period of the wave?

Physics
1 answer:
Dmitrij [34]3 years ago
7 0

Answer:

I think it might be 9 hz but not 100% shore though

Explanation:

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A car with a mass of 600 kg is traveling at a velocity of 10 m/s. How much kinetic energy does it have? The car has J of kinetic
konstantin123 [22]
The kinetic energy of an object is given by:
K= \frac{1}{2}mv^2
where m is the mass of the object and v its velocity. 

The car in this problem has a mass of m=600 kg and a velocity of v=10 m/s, therefore if we put these numbers into the equation, we find the kinetic energy of the car:
K= \frac{1}{2}mv^2= \frac{1}{2}(600 kg)(10 m/s)^2=30000 J
5 0
3 years ago
40 Points!!! Write a summary paragraph discussing this experiment and the results. Use the following questions to help guide the
Gnoma [55]

Answer:

sorry but i dont know can you brainliest me plsss i need it

7 1
3 years ago
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Which is the last stage in the life cycle of an average star? (1 point)
Shkiper50 [21]

Answer:

The answer is A. White Dwarf

Explanation:

  • <u>average stars like sun end their life as white dwarf surrounded by disappearing planetary nebula. </u>
4 0
2 years ago
Frente a una lente convergente delgada se coloca un objeto a una distancia de 50 cm. La imagen de este objeto aparece del otro l
katovenus [111]

Answer:

La distancia focal del objetivo es de aproximadamente 30,77 cm

Explanation:

Los parámetros dados son;

La distancia del objeto desde la lente, u = 50 cm

La distancia de la imagen desde la lente, v = 80 cm

La fórmula del espejo se puede escribir de la siguiente manera;

\dfrac{1}{f} = \dfrac{1}{v} + \dfrac{1}{u}

Dónde;

f = La distancia focal de la lente

v = La distancia de la imagen desde la lente

u = La distancia del objeto desde la lente

Sustituyendo los valores da;

\dfrac{1}{f} = \dfrac{1}{80} + \dfrac{1}{50} = \dfrac{80 + 50}{4000} = \dfrac{13}{400}

\therefore  f = \dfrac{400}{13}  = 30\dfrac{10}{13} \ cm

La distancia focal de la lente, f = 30¹⁰/₁₃ cm ≈ 30,77 cm.

La distancia focal del objetivo ≈ 30,77 cm.

4 0
3 years ago
In the formula, which quantity is measured in units of J/g degree C?
Andru [333]
In formula:

Specific heat capacity, c is measured in J/g degree C.

From Q = mcθ

c =  Q / mθ =    Q is in J, m might be in grammes, g,  θ is in degree C

So c can be measured in    J/g degree C

Answer = Option (a) 
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3 years ago
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