Amigrant is
a. a reason to leave a place
b. a person who moves from one place to another
c. a factor that encourages people to move
d. a piece of culture that is spread from one place to another

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

The material that keeps its new shape after it is stretched is called?