Which of the following substances is most viscous at room temperature?
A. Water B. Alcohol C. Petrol D. Palm oil E. Kerosine Correct Answer: Option D – Palm oil
The angular speed of an object describing a circle of radius 4m with a linear constant speed of 10 ms-1 is?
A. 40.00 rad s-1 B. 14.00 rad s-1 C. 2.50 rad s-1 D. 1.58 rad s-1 E. 0.40 rad s-1 Correct Answer: Option C – 2.50 rad s-1
What is the minimum force required to pull the body up the plane?
A body of mass 7.5 kg is to be pulled up along a plane which is inclined at 30o to the horizontal. If the efficiency of the plane is 75%, what is the minimum force required to pull the body up the plane? (g = 10ms-1) A. 5.0 N B. 20.0 N C. 50.0 N D. 75.0 N E. 200.0 N...A student found out from a simple pendulum experiment that 20 oscillations were completed in 38 seconds. What is the period of oscillation of the pendulum?
A. 8.0s B. 3.8 s C. 2.0 s D. 1.9 s E. 0.5s Correct Answer: Option D – 0.5sProducts
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