A substance has a half of 3mins. after 6mins. the count rate was observed to be 400. What was its count rate at zero time?

What precaution should a manufacturer take to ensure that energy loss in a transformer is minimized?

<img alt="" class="alignnone size-full wp-image-294492" height="169" src="https://data.ulearngo.com/assets/f3dfa7c0-d101-4950-a0e8-75d78457cbd6" width="300"/>A force of 5N act at a point Y on a rod XYZ as shown in the diagram above, if XY is 2m. What is the moment of the force about point X?

<img alt="" class="alignnone size-full wp-image-294494" height="234" src="https://data.ulearngo.com/assets/6107d6f4-4320-42a5-81e3-2685e7a0c1eb" width="300"/>What is the average velocity of the sprinter whose velocity time graph is as shown above

<img alt="" class="alignnone size-full wp-image-294496" height="135" src="https://data.ulearngo.com/assets/da77631f-9728-4059-885b-ea1a04aebf34" width="300"/>Two horizontal forces, 10N and 8N and another force F1 inclined at 30 to the vertical acting as shown in the diagram above, keep the body P in equilibrium, The weight of the body is

<img alt="" class="alignnone wp-image-294498 size-full" height="123" src="https://data.ulearngo.com/assets/ea1360e7-afe7-499b-bb88-23f497ba5ada" width="277"/>What is the reading of the vernier scale above?

1990 JAMB UTME Physics Past Questions

A substance has a half of 3mins. after 6mins. the count rate was observed to be 400. What was its count rate at zero time?

What precaution should a manufacturer take to ensure that energy loss in a transformer is minimized?

A force of 5N act at a point Y on a rod XYZ as shown in the diagram above, if XY is 2m. What is the moment of the force about point X?

What is the average velocity of the sprinter whose velocity time graph is as shown above

Two horizontal forces, 10N and 8N and another force F1 inclined at 30 to the vertical acting as shown in the diagram above, keep the body P in equilibrium, The weight of the body is

What is the reading of the vernier scale above?