If the ground state energy level of a proton in a rigid box is 5.0 MeV, what is the width of the box?
A)
2.7 × 10-13m
B)
6.4 × 10-15m
C)
2.7 × 10-15m
D)
6.4 × 10-14m
E)
6.4 × 10-13m
B
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In the context of the electromagnetic spectrum, which of the following types of electromagnetic radiation has the smallest wavelength?
A) X-rays B) Visible light C) Radio waves D) Gamma rays
State Newton's second law in terms of momentum
What will be an ideal response?
The de Broglie wavelength of a 0.069 kg golf ball is 4.67 × 10^?34m. What is its speed? (h = 6.63 × 10^?34 J?s)
a. 10 m/s b. 21 m/s c. 3.1 m/s d. 90 m/s e. 4.5 m/s
A lightweight object and a very heavy object are sliding with equal speeds along a level frictionless surface. They both slide up the same frictionless hill. Which rises to a greater height?
A) The heavy object, because it has greater kinetic energy. B) The light object, because it has smaller kinetic energy. C) The lightweight object, because it weighs less. D) The heavy object, because it weighs more. E) They both slide to the same height.