Answer:
The velocity of the sound waves across the plains of Sneedville is 500 m/s.
Step-by-Step Explanation:
Distance travel by the screech of Sneetches = d = 250 m
Time taken to cove 250 meters = t = 0.50 s
Let the velocity of the sound waves be v, such that:
v = d/t
⇒ v = 250/0.5
⇒ v = 500 m/s
B: 60 min
C: 45 min
D: 15 min
The answer is B) 60 min.
show your working out.
Rock 1000 0.5
Pillow 200 10
Bottle of soda 2000 2
Loaf of bread 100 1
rock and bottle of soda
loaf of bread and rock
loaf of bread and pillow
bottle of soda and loaf of bread
Explanation:
The density of the material is given by,
Density =
Case 1: Rock
Density =
Density =
Density = 2000
Case 2: Pillow
Density =
Density =
Density = 20
Case 3: Bottle of Soda
Density =
Density =
Density = 1000
Case 4: Load of bread
Density =
Density =
Density = 100
Thus, rock and bottle of soda has maximum density.