Answer:
b. third quarter
c. first quarter
Explanation:
Neap tides happen in the third and first quarter of the moon phase, when the moon appears to be half full, this is because of the position of the moon and the gravitational force of the moon attracting the tides along with the gravitational force of the sun, tha causes high tides on new, and full phases, but the third quarter and first quarter, the moon makes a 90º line with the solar gravitational forces, cancelling out both forces making it low tide or neap tide.
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watch this question get reported IMAOO
but yes all anime fans needa know what baka means
Answer:
Objetivos. Evaluamos el acceso autopercibido a la atención médica en una cohorte de beneficiarios de Medicare.
Métodos. Identificamos patrones de uso y barreras para la atención médica a partir de cuestionarios autoadministrados recopilados durante el examen anual 1993-1994 del Estudio de salud cardiovascular.
Resultados. Los cuestionarios fueron completados por 4889 (91,1%) participantes, con una edad media de 76,0 años. Las barreras más comunes para ver a un médico fueron la falta de respuesta del médico a las inquietudes de los pacientes, las facturas médicas, el transporte y la seguridad en las calles. Los ingresos bajos, la falta de seguro complementario, la edad avanzada y el sexo femenino se relacionaron de forma independiente con la percepción de las barreras. La raza no fue significativa después del ajuste por otros factores.
Conclusiones. Las barreras psicológicas y físicas afectan el acceso a la atención de las personas mayores; estos pueden estar influenciados por la pobreza más que por la raza.
Considering the definition of wavelenght, frecuency and propagation speed, the frequency of the electromagnetic radiation that has a wavelength of 720.0 nm is 4.167×10¹⁴ Hz.
In a periodic wave the wavelength (λ) is the physical distance between two points from which the wave repeats itself. It is expressed in units of length (m).
The frequency (f) is a measure of the number of cycles or repetitions of the wave per unit of time. Its unit is s⁻¹ or hertz (Hz).
The propagation speed is the speed with which the wave propagates in the medium, that is, it is the magnitude that measures the speed at which the wave's disturbance propagates along its displacement. Relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:
v = f×λ
In this case, you know:
- v=c= 3×10⁸ m/s
- f= ?
- λ= 720 nm= 720×10⁻⁹ m
Replacing in the definition of propagation speed:
3×10⁸ m/s= f × 720×10⁻⁹ m
Solving:
3×10⁸ m/s÷ 720×10⁻⁹ m= f
<u><em>4.167×10¹⁴ Hz= f</em></u>
Finally, the frequency of the electromagnetic radiation that has a wavelength of 720.0 nm is 4.167×10¹⁴ Hz.
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