Neco Physics Questions
Question 292:
An observer heard the sound of thunder 5.8s after the lightning flash was seen. How far was he from the source? [Speed of sound in air = 330ms-1]
View Answer & ExplanationQuestion 293:
The space between the two walls of a vacuum flask is completely evacuated to reduce heat loss by ____________
View Answer & ExplanationQuestion 295:
Determine the value of x from the nuclear reaction below,
\(^{222}_{86}Rn\) → \(^{x}_{88}Ra\) + 2β + energy
View Answer & Explanation\(^{222}_{86}Rn\) → \(^{x}_{88}Ra\) + 2β + energy