Boulder Temperature (°C) Speed of Sound (m/s) 562
-5
564
o
568
10
570
15
?
20
5. A student is studying how sound travels
through a solid medium by timing
the movement of sound through a
boulder when the boulder is at different
temperatures. Using the information above,
how fast will sound move through the
boulder when it reaches 20°C? sc.7.P.10.3
A 571 m/s
B 572 m/s
C
573 m/s
D 574 m/s

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?