Chapter 38, Problem 088 A bullet of mass 42 g travels at 1050 m/s. Although the bullet is clearly too large to be treated as a matter wave, determine according to the de Broglie equation (A = h/p) the de Broglie wavelength of the bullet at that speed. Number Units
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- MY NOTES ASK YOUR TEACHER PRACTICE ANOTH OBINPHYS8 10.P.005. DETAILS Electrons striking the back of a conventional TV screen travel at a speed of about 1.5 x 107 m/s. What is their de Broglie wavelength (in nm)? nm Need Help? Read It DETAILS OBINPHYS8 10.P.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTH If a proton were traveling the same speed as electrons in a TV picture tube (about 7.7 x 107 m/s), what would its de Broglie wavelength be? The mass of a proton is 1.67 x 10-27 kg. m Need Help? Read It Watch ItAn electron is moving with a speed of 3.00 x 10° m/s. What is the speed of a proton that has the same de Broglie wavelength as this electron? O 1.63 km/s O 2.18 km/s O 163 m/s 1.63 m/s O 1.36 km/sWhat is the de Broglie wavelength of a bullet of mass 0.075 kg traveling at 350 m/s? Planck's Constant is 6.63 × 10−34 J ⋅ s. a 4.1 × 10−35 m b 2.5 × 10−35 m c 2.2 × 10−34 m d 1.7 × 10−34 m
- A proton has a de Broglie wavelength of 81.20 fm. What is its speed? m/sAn electron, starting from rest, accelerates through a potential difference of 992 V. What is the final de Broglie wavelength of the electron, assuming that its final speed is much less than the speed of light? Number i UnitsIn an experiment to study the photo-electric effect, light of wavelength 400 nm shining on a metallic surface causes electrons to be emitted. The maximum kinetic energy of the electrons is 1.05 eV (electron volts). Another light source of wavelength 200 nm is then tried, and the emitted electrons have a maximum kinetic energy of 4.20 eV. Using this information: a) determine the value of Planck's constant. b) determine the work function of the metal.
- A 430 g soccer ball is moving at the speed of 60 miles per hour. What is the de Broglie’s wavelength associated with the movement of the soccer ballWhat is the velocity (in m/s) of a 0.430 kg billiard ball if its wavelength is 7.70 cm (large enough for it to interfere with other billiard balls)?a) Find the de Broglie wavelength of electrons moving with an average speed of 1.55 x 105 m/s. b) Suppose these electrons are described by a wave packet of width 2.55 nm. What is the uncertainty of the momentum of the electrons?
- During a certain experiment, the de Broglie wavelength of an electron is 610 nm = 6.1 x 10- m, which is the same as the wavelength of orange light. How fast (in m/s) is the electron moving? m/s1a) Calculate the de Broglie wavelength of a 0.80 kg ball moving with a constant velocity of 26 m/s (about 60 mi/h). =________m 1b)Calculate the de Broglie wavelength of a 0.62 kg ball moving with a constant velocity of 26 m/s (about 60 mi/h).=_______ m