JAMB 2024 A feather and a steel ball are dropped simultaneously from a tall building. Which will reach terminal velocity first?
JAMB 2024 A resistor develops 400 J of thermal energy in 10 s when a current of 2 A is passed through it. Find its resistance.
JAMB 2024 A steel strip, clamped at one end, vibrates with a frequency of 20 Hz and an amplitude of 5 mm at the free end, where a small mass of 2 g is…
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…
JAMB 2024 A 10,000 kg railroad car, A, traveling at a speed of 24.0 ms⁻¹ strikes an identical car, B, at rest. If the cars lock together as a result of the…