physics

which of the below conditions will NOT affect the pressure of fluid?

I. Density of the liquid. II. Acceleration due to gravity. III. Type of container of the liquid. IV. The constituents…

4 years ago

If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be?

A. 3.0 B. 3.1 C. 3.2 D. 2.0 Correct Answer: Option D = 2.0 Explanation V.R = (1)/sinθ = (1)/sin…

4 years ago

An object of mass 80kg is pulled on a horizontal rough ground by a force of 500N. Find the coefficient of static friction. [g = 10 ms‾²]

A. 0.8 B. 0.4 C. 1.0 D. 0.6 Correct Answer: Option D - 0.6 Explanation coefficient of friction = (F)/R…

4 years ago

If a cage containing a truck of coal weighing 750 kg is raised to a height of 90m in a minute. What is the total power expended? [g = 10 ms‾²]

A. 11.50 kw B. 12.60 kw C. 11.25 kw D. 12.10 kw Correct Answer: Option C - 11.25 kw Explanation…

4 years ago

Which of the motions below is simple harmonic?

I. The motion of the tyres of a moving car. II. The motion of a loaded test tube oscillated vertically.…

4 years ago

A bullet fired vertically from upward from a gun held 2.0m above the ground reaches its maximum height in 4.0s. calculate its initial velocity. [g = 10ms‾²]

A. 10 ms‾¹ B. 8 ms‾¹ C. 40 ms‾¹ D. 20 ms‾¹ Correct Answer: Option C - 40 ms‾¹ Explanation…

4 years ago

Which of the below can be measured using a micrometer screw gauge?

I. Diameter of a small ball bearing. II. Thickness of pieces of paper. III. Diameter of a measuring cylinder. IV.…

4 years ago

An object is weighted at different locations on the earth. What will be the right observation?

A. Both the mass and weight are constant B. Both the mass and weight vary C. the mass is constant…

4 years ago

In Faradays law of electrolysis; a graph of the mass deposited against the quantity of electricity is plotted. The slope of the graph gives?

A. the energy released B. the electrochemical equivalent C. the current flowing D. the charge released Correct Answer: Option B…

4 years ago