Multiple Choice
A cyclotron of radius 0.25 m accelerates nonrelativistic protons in a 1.7-T magnetic field. What is the kinetic energy of the protons when they leave the cyclotron? (1 eV = 1.60 × 10-19 J, e = 1.60 × 10-19 C, mproton = 1.67 × 10-27 kg)
A) 3.7 MeV
B) 7.8 keV
C) 8.7 keV
D) 7.8 MeV
E) 8.7 MeV
Correct Answer:
Verified
Correct Answer:
Verified
Q14: The decay n → p<sup>+</sup> + e<sup>-
Q15: If a galaxy is receding from us
Q16: If a galaxy is moving away from
Q18: Consider the decay π<sup>+</sup> → μ<sup>+</sup> +
Q20: Redshift measurements on a galaxy show that
Q21: Consider the decay π<sup>o</sup> → μ<sup>-</sup> +
Q22: A galaxy is observed receding from Earth
Q23: The background microwave radiation, discovered in 1965
Q24: A giant star in another galaxy exploded
Q47: What type of particle is a proton?