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KiRa [710]
4 years ago
14

A train composed of a small engine car and a massive cargo car are connected as they move along a track. The speed of the small

engine car is ____(blank 1)___ the speed of the massive cargo car. The magnitude of the acceleration of the small engine car is ____(blank 2)___ the magnitude of the acceleration of the massive cargo car because ____(blank 3)___ .
Physics
1 answer:
stepan [7]4 years ago
7 0

Answer:

The speed of the small engine car is <u>_equal to_</u> the speed of the massive cargo car. The magnitude of the acceleration of the small engine car is <u>_equal to_</u> the magnitude of the acceleration of the massive cargo car because <u>_the cars speeds cannot change by different amounts_</u> .

Explanation:

The two cars are connected, hence, they move with the same speed at all points in time.

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3 years ago
What is the wavelength in nanometers of light when the energy is 1. 91 × 10^6 j for a mole of photons?.
JulijaS [17]

The wavelength in nanometers of light when the energy is 1. 91 × 10^6 j for a mole of photons is <u>62. 8 nm.</u>

Wavelength is the distance among the same points (adjacent crests) within the adjoining cycles of a waveform signal propagated in space or along a cord. In wi-fi structures, this period is typically specified in meters (m), centimeters (cm), or millimeters (mm).

The wavelength is the distance between wave crests, and it is going to be the same for troughs. The frequency is the variety of vibrations that skip over a given spot in one 2nd, and it's far measured in cycles consistent with the second (Hz) (Hertz).

Frequency is the ratio of pace and wavelength in relation to speed. In comparison, wavelength refers to the ratio of pace and frequency. Audible sound waves are characterized by way of a frequency range of 20 to 20 kHz. In contrast, the variety of wavelengths of visible light is from four hundred to seven hundred nm.

<u>calculation:-</u>

*E=hc/λ

1.91 × 10^6 J = (6.62610⁻³⁴) (3.00*10⁸) / λ

λ= (6.62610⁻³⁴) (3.00*10⁸) / 1.91 × 10⁶ J

λ= 1.0410⁻³¹× 10⁻⁹ × 6.022*10²³

 =<u> 62. 8 nm </u>

Learn more about wavelength here:-brainly.com/question/10728818

#SPJ4

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