Author Question: A 905-g meteor impacts the earth at a speed of 1629 m/s. If all of its energy is entirely converted ... (Read 44 times)

kaid0807 · **on:** Jul 29, 2018

A 905-g meteor impacts the earth at a speed of 1629 m/s. If all of its energy is entirely converted to heat in the meteor, what will be the resulting temperature rise of the meteor, assuming it does not melt? The specific heat for the meteor material

is 472 J/kgK, which is about the same as that of iron.
A) 2,540,000C B) 11,700C C) 2810C D) 3.10C

Question 2

A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense.
(a) For points OUTSIDE the loop, the magnetic field caused by this current

A) circles the loop in a clockwise direction.
B) circles the loop in a counterclockwise direction.
C) points straight up.
D) points straight down.
E) is zero.
(b) For points INSIDE the loop, the magnetic field caused by this current
A) circles the loop in a clockwise direction.
B) circles the loop in a counterclockwise direction.
C) points straight up.
D) points straight down.
E) is zero.