a swimmer wants to cross a river, from point a to point b, as shown in the figure. the distance d1 (from a to c) is 200 m, the distance d2 (from c to b) is 150 m, and the speed vr of the current in the river is 5 km/hour. suppose that the swimmer's velocity relative to the water makes an angle of θ=45degrees with the line from a to c, as indicated in the figure.

Match the scsi standard to the definition that best describes it. 1. also called ultra scsi; has a transfer rate up to 30 mbps and 8-bit bus 2. transfer rate of 5 mbps and 8-bit bus 3. also called firewire; has a transfer rate up to 100 mbps and can connect up to 63 devices 4. consists of two protocols; fast scsi with speeds up to 10 mbps using an 8-bit bus and wide scsi, which uses 16- or 32-bit buses serial scsi scsi-2 scsi-3 scsi-1

Which object has the least amount of kinetic energy? a. a car driving down a road b. a soccer ball rolling down a hill c. a bicycle locked to a bike rack d. a satellite orbiting earth

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?