physics

The advantages of the thermoelectric thermometer include the following characteristics except that it

A. can measure rapidly changing temperatures B. can measure high and low temperature C. can measure high and low temperature…

6 years ago

A machine is said to be a third-class lever when the?

A. load is between the fulcrum and effort B. fulcrum is between the effort and the load C. effort is…

6 years ago

Which of the following sources of energy is/are exhaustible?

i. Solar ii. Fossil fuels iii. Tidal power A. i, ii and iii B. i and ii only C. i…

6 years ago

A moving body of mass 25.0kg undergoes a uniform retardation of 20.0ms-2. Calculate the magnitude of the retardation force

A. 1.25N B. 8.00N C. 45.00N D. 500.00N Correct Answer: Option D D. 500.00N Explanation F = MG = 25…

6 years ago

Simple harmonic oscillator has a period of 0.02s and amplitude of 0.25m. Calculate the speed in ms-1 at the centre of the oscillation.

A. 125π B. 25.00π C. 100.00 π D. 400.00π Correct Answer: Option B B. 25.00π Explanation V = WX =…

6 years ago

Which of the following statements best describes a rigid body? A body which

A. is not equally deformed B. when deformed regains it shape C. is brittle D. when deformed remains deformed Correct…

6 years ago

The average speed of an object is determined by dividing the sum of its initial and final speeds by two only when the acceleration is?

A. changing B. uniform C. increasing D. decreasing Correct Answer: Option B B. uniform

6 years ago

Which of the following statements about moving particle is correct?

A. if the resultant force acting on the particle is zero, then it is in dynamic equilibrium B. If the…

6 years ago