- A mass of 2kg is dropped from rest at a height of 10m. i) What is the initial GPE of the mass? ii) What is the final velocity of the mass when it hits the ground?
- How does heat transfer through convection work?
- An electric whisk in a bakery has two motors, each with an average power of 1500W. The whisk is used for 4 hours each day, 7 days a week. Electricity costs 18p per kilowatt-hour. Calculate the cost of the electricity used by the whisk in one week.
- What are the three major radiations experienced by heavy unstable nuclei, and how does the penetrating power compare for each?
- define 1 volt