physics

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m B. 69000m C. 61440m D. 24000m Correct Answer: Option C C. 61440m Explanation Time of flight, T =…

6 years ago

Which of the following readings cannot be determined with a meter rule?

A. 2.56cm B. 2.25cm C. 2.50cm D. 2.05cm Correct Answer: Option A A. 2.56cm Explanation Meter rule has a reading…

6 years ago

A body was slightly displaced from its equilibrium position. Which one of the following is a condition for its stable equilibrium?

A. an increase in the kinetic energy of the body B. an increase in the potential energy of the body…

6 years ago

A mass of 0.5kg is whirled in a vertical circle of radius 2m at a steady rate of 2 rev/s. Calculate the centripetal force.

A. 164N B. 160N C. 158N D. 172N Correct Answer: Option B B. 160N Explanation ω = 2πF = 2π…

6 years ago

A cone is in unstable equilibrium has its potential energy?

A. decreased B. increased C. unchanged D. oscillating Correct Answer: Option A A. decreased Explanation In unstable equilibrium, potential energy…

6 years ago

The equilibrium position of objects in any field corresponds to situation of?

A. equipotential energy B. maximum potential energy C. minimum potential energy D. maximum kinetic energy Correct Answer: Option C C.…

6 years ago

The diagram shows a uniform meter rule AB which balances horizontally at the 90cm mark when a mass of 0.2kg is suspended from B. Calculate the mass of the meter rule.

A. 0.05kg B. 0.20kg C. 0.80kg D. 1.00kg Correct Answer: Option A A. 0.05kg Explanation Mr (90 - 50) =…

6 years ago

In Sunlight, a blue flower looks blue because we see the flower by the light it?

A. receives from our eyes B. disperses C. absorbed D. reflect Correct Answer: Option D D. reflect Explanation Colours presented…

6 years ago

The volume of a stone having an irregular shape can be determined using?

A. meter rule B. measuring cylinder C. vernier caliper D. micrometer screw gauge Correct Answer: Option B B. measuring cylinder…

6 years ago