What effort would be required to move a 500 n load using a 4 m long lever with a fulcrum 1.5 m from the load? 1875 n 133 n 300 n 833 n

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)