Author Question: What is the wavelength of a neutron having a kinetic energy of 0.025 eV? (The mass of a neutron is ... (Read 185 times)

deesands · **on:** Jul 29, 2018

What is the wavelength of a neutron having a kinetic energy of 0.025 eV? (The mass of a neutron is 1.67 10-27 kg.)

A)

3.7 10-22 m
B)

2200 m
C)

1100 m
D)

1.8 10-10 m
E)

3.2 10-20 m

Question 2

Stress is

A)

the strain per unit length.
B)

the same as force.
C)

the ratio of the change in length to the original length.
D)

applied force per cross-sectional area.
E)

the ratio of elastic modulus to strain.