One athlete in a race running on a long, straight
track with a constant speed v, is a distance d behind a sec-
ond athlete running with a constant speed u. (a) under
what circumstances is the first athlete able to overtake the
second athlete? (b) find the time t it takes the first ath-
lete to overtake the second athlete, in terms of d, v,, and
vy. (c) at what minimum distance d, from the leading
athlete must the finish line be located so that the trailing
athlete can at least tie for first place? express d, in terms
of d, v1, and v, by using the result of part (b).

the answer is false

explanation:

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

overcharge is the right answer system

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force