200J
400J
800J
1600J
Correct answer is B
K.E = \(\frac{1}{2}Mv^2 = \frac{1}{2} \times 2 \times 20^2 = 400J\)
Which of the following actions will increase capacitance of a parallel plate capacitor? I. Decreasi...
the arrow represents an object in front of a convex mirror whose focal points are X and Y. The image...
22,000J of heat is required to raise the temperature of 1.5kg of paraffin from 20oC to 30oC. Calcula...
A projectile is fired from the ground level with a velocity of 300ms-1 at an angle of a 30o to the h...
When the pressure of the gas in a discharge tube is gradually lowered. I. there is a violet glow ...
To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provide...
If the refractive index of water is 1.33, what is the critical angle for a water-air boundary? ...
If the refractive index of a medium is V2, what is the critical angle? ...
A quantity of ice at 10oC is heated until the temperature of the heating vessel is 90oC. Which of th...
The figure above shows a plot of angles of deviation through a glass prism when light is incident at...
Nigeria General Knowledge Questions and Answers
Abstract Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
Microsoft Office Questions and Answers
Personality Test
Quantitative Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Typing Speed and Accuracy Test
Verbal Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Data Interpretation Questions and Answers
Situational Judgement Questions and Answers
Puzzles Questions and Answers
See all →