Answer:
divide by mass and volume
Explanation:
density=mass/volume
or in symbols:p=m/v
The answer for this would be B) Energy
Answer:

Explanation:
given,
Average velocity due west = 1.20 m/s
case 1
Distance moved in west, x₁ = 5.63 km
speed due west, v₁ = 2.33 m/s
Case 2
Distance moved in east = x₂
speed due east, v₂ = 0.374 m/s
total distance = x₁ + x₂ = 5.62
total time = t₁ + t₂ = 5630/2.33 + x₂/0.374
now,


negative sign is used because we want the distance in east but velocity is in west.



The distance she walked in east is equal to 648.46 m
Answer:
Explanation:
Given
Distance between source and receiver 
Sound Intensity 
Distance of of second observer 
Intensity varies as

using this





Answer:
Periodic Motion :–
This is a type of motion where the object repeats its motion after a fixed interval of time.
<em><u>Examples</u></em>: pendulum of a clock, motion of child on a swing etc.