Mathematics, 15.07.2020 01:01 Dhejxbdbbxbdbbx

A hairdryer transfers 36,000J in one minute, what is the power rating of the hairdryer? Calculate the work done where 99W is used over 360s

Calculate the efficiency of a kettle which takes 100J and transfers it into 55J

Calculate work done when an object has an applied force of 5N and moves a distance of 4m

An electric fire needs 4 kW. It is switched on for 4 hours. If each kWh costs 2p, how much does it cost to run the fire?

Please help me quick I only have tomorrow left

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A hairdryer transfers 36,000J in one minute, what is the power rating of the hairdryer? Calculate t...