1. A student using a stopwatch finds that the time for
10 complete orbits of a ball on the end of a string
is 25 seconds. The period of the orbiting ball is
A 25 sec
B 2.0 sec
C. 2.5 sec
D. 5.0 sec

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

it doesn't. it was imagined up in the middle ages.

because growing process had stoped after 4-5 year