A proton moves perpendicularly to a mag- netic field that has a magnitude of 3.70 x 10-2
T.
The charge on a proton is 1.60x10-19 C.
What is the speed of the particle if the
magnitude of the magnetic force on it is 2.19x
10-14N?
Answer in units of m/s.

Describe the path of a ray that approaches a mirror parallel to the principal axis.

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)