If you throw a raw egg against a wall, you'll break it, but if you throw it with the same speed into a sagging sheet it won't break. why? 1. the sheet is much slicker than the wall. 2. the breaking egg causes a larger impact time, decreasing the force. 3. the impact time when the egg strikes a sagging sheet is long, so the impact force is small. 4. the velocity of the egg decreases faster in the sheet than on the wall.

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

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.)