5. A speed boat is cruising in the ocean. It has an upward force (buoyant force) of 5000N acting on it, a weight of 5000N, and a force of 20,000N coming from its engine. If the boat is
accelerating forward, what must be the fluid friction on the boat caused by water, if the net
force on the boat is 4000N to the right?
b. Draw a free-body diagram showing the boat in the water.

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

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.)