Which of the following are the essential parts of an atomic bomb?
A. Uranium and neutrons
B. Radium and polonium
C. Nitrogen and neutrons
D. ranium and α – particles.
Correct Answer: Option A
A. Uranium and neutrons
Four co-planar forces of magnitudes 10N, 17N, 6N and 20N act at point O as shown in the above diagram. Determine the magnitude of the resultant force
January 21, 2019
A car traveling at 30m-1 overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine.
January 20, 2019
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