1. Calculate the velocity (in m/s) of a 2.34-g object that has Ek = 46.2 J. 2. Calculate the wavelength (in nanometers) of light with energy 1.32 x 10-26 kJ per photon.

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1.calculate the velocity (in m/s ) of a 2.33-g object that has Ek-46.2 J.
**Physics Problems for Students**

1. **Calculate the velocity (in m/s) of a 2.34-g object that has \( E_k = 46.2 \, \text{J} \).**

2. **Calculate the wavelength (in nanometers) of light with energy \( 1.32 \times 10^{-26} \, \text{kJ per photon}.**

3. **What is the value of \( n_2 \) for an electron that emits a photon of wavelength 93.14 nm when it returns to the ground state in the H atom? Round to the nearest whole number.**

4. **What is the minimum speed an electron can travel to have a visible de Broglie wavelength? (Assume the range of visible wavelengths is 400–700 nm, and the mass of an electron is \( 9.10 \times 10^{-28} \, \text{g} \).)**
Transcribed Image Text:**Physics Problems for Students** 1. **Calculate the velocity (in m/s) of a 2.34-g object that has \( E_k = 46.2 \, \text{J} \).** 2. **Calculate the wavelength (in nanometers) of light with energy \( 1.32 \times 10^{-26} \, \text{kJ per photon}.** 3. **What is the value of \( n_2 \) for an electron that emits a photon of wavelength 93.14 nm when it returns to the ground state in the H atom? Round to the nearest whole number.** 4. **What is the minimum speed an electron can travel to have a visible de Broglie wavelength? (Assume the range of visible wavelengths is 400–700 nm, and the mass of an electron is \( 9.10 \times 10^{-28} \, \text{g} \).)**
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