At what angle to the horizontal must the nozzle of a machine gun be kept when firing to obtain a maximum horizontal range for the bullets?
A. 0.0° B. 22.5° C. 30.0° D. 45. 0° E. 90.0° Correct Answer: Option D – 45. 0°
The count rate of an alpha-particle source is 400 per minute. If the half-life of the source is 5 days. What would be the count rate per minute after 15 days?
A. 20 B. 25 C. 50 D. 200 E. 400 Correct Answer: Option C – 50
Which of the following particles/rays do not originate from the nucleus of an atom?
A. Alpha particles B. Beta particles C. Neutrons D. Gamma rays E. X-rays Correct Answer: Option E – X-rays
Which of the following is used in a nuclear reactor to slow down fast-moving neutrons?
A. Carbon dioxide gas B. Liquid sodium metal C. Concrete shield D. Graphite rods E. Boron rods Correct Answer: Option D – Concrete shieldProducts
-
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Co-Ownership Structures and Land Acquisition Methods in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Rights in Community Land and Fundamental Land Concepts in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Customary Land Control and the Origins of Nigeria's Land Use Act
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Land Ownership Principles and Transaction Laws in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.