JAMB 2024 Two tuning forks produce sound waves with the same frequency. If one tuning fork is struck harder, what aspect of the sound will change?
JAMB 2024 An elevator weighing 500 kg is to be lifted up at a constant velocity of 0.20 ms⁻¹. What would be the minimum horsepower of the motor to be used?…
JAMB 2024 A machine has an efficiency of 75%. The work done when the machine is used to raise a load of 50 kg through a vertical distance of 6 m is [Take g =…
JAMB 2024 A spring with a spring constant of 50 N/m is compressed from its natural position by 1 cm. Calculate the work done by the spring force on the object…