A boy is whirling a stone at the end of a string around his head. The string makes two complete revolution every second, and the tension in the string is T. The boy decreases the speed of the stone, keeping the radius of the circle unchanged, so that the string makes one complete revolutions per second. What happens to the tension in the sting

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

d. air pressure decreases as altitude increases.