15. What is the magnitude of the magnetic field required to keep a proton moving in a circle of radius 1 at speed of 2.5x 10?m/s? (take mass of proton to be Mp=1.67x 107 kg)​

Asher cycles 12 miles in 16 hours. what is his speed?

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

An atom that has gained or lost electrons is called an _