A supertrain of proper length 210 m travels at a speed of 0.95c as it passes through a tunnel having proper length 74.0 m. How much longer is the tunnel than the train or vice versa as seen by an observer at rest with respect to the tunnel

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

80cm/s.

24cm/s.

53.3cm/s.