0.1J
1.0J
10.0J
100.0J
Correct answer is A
Energy = \(\frac{1}{2} ke^2 = \frac{1}{2} \times 20 \times 0.1^2\) = 0.1J
The maximum density of water occurs at a temperature of ...
A machine has an efficiency of 80%. If the machine is required to overcome a load of 60N with a forc...
Natural radioactivity was discovered by ...
A ball of mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms\(^{-1}\). Determine th...
A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air is 330ms-1...
An air bubble rises from the bottom to the top of a water dam which is 40m deep. The volume of the b...
If the frequency of the tuning fork at resonance is 256Hz, calculate the frequency of vibration of t...
In an experiment to determine terminal velocity, as the pressure increases, the viscosity off a liqu...
Which of the following statements about matter is not correct? ...
A piece of wood of mass 40g and uniform cross-sectional area of 2cm2 floats upright in water. The le...
Quantitative Reasoning Questions and Answers
Microsoft Office Questions and Answers
Abstract Reasoning Questions and Answers
Nigeria General Knowledge Questions and Answers
Spatial Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Verbal Reasoning Questions and Answers
Data Interpretation Questions and Answers
Logical Reasoning Questions and Answers
Situational Judgement Questions and Answers
Puzzles Questions and Answers
Personality Test
Typing Speed and Accuracy Test
See all →