A uniform meter stick pivoted at its center has a 155-g mass suspended at the 18.5-cm position and a 25.0-g mass suspended at the 38.4-cm position. At what position should a 275-g mass be suspended
to put the system into equilibrium?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

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.)