Size of the Nucleus: A proton is projected at a stationary 
Ra aluminum target. The proton momentarily comes to a halt at a distance from the center of an aluminum nucleus, equal to twice the nuclear radius. Assume that the nucleus retains its spherical shape and that the nuclear force on the proton is negligible. The initial kinetic energy of the proton, in MeV, is closest to:
A. 8.7 MeV.
B. 5.8 MeV.
C. 2.9 MeV.
D. 13 MeV.
E. 17 MeV.
Answer: A
You might also like to view...
A zero decibel sound level has zero amplitude
a. True b. False Indicate whether the statement is true or false
A 10-cm focal length converging lens is used to magnify small newspaper print 2.0 mm high. Calculate the height of the image (in mm) for the maximum magnification for a normal eye
a. 3.5 b. 7.0 c. 9.2 d. 12 e. 2.5
Which of the following is not a scalar quantity?
a. Kinetic energy b. Potential energy c. Power d. Work e. None of these; that is, they are all scalar quantities.
Motor oil, with a viscosity of 0.250 Ns/m2, is flowing through a tube that has a radius of 5.00 mm and is 25.0 cm long. The drop in pressure is 300 kPa. What is the volume of oil flowing through the tube per unit time?
A) 0.000376 m3/s B) 0.0253 m3/s C) 0.00118 m3/s D) 4.71 m3/s E) 7.54 m3/s