Answer:
See explanation
Explanation:
Echo is the reflection of sound waves. Recall that ultrasound are also sound waves of high frequency.
When ultra sound meets an obstacle such as a bone, it is reflected backwards and gives rise to an echo back in the transducer.
Since ultrasound is high frequency sound wave wave; It does not passes through bone due to the high density of the bone, the data required may now be collected.
Just get a triple balance beam and put chemicals on it to measure the weight
Steel is an alloy that is mainly comprised of CARBON. Hope this helps and give thanks plsss!
Zn+CuSO4=Cu+Zn(SO4)2
Cu+CaC03=Ca+Cu2(CO3)
Na+MgCI2=NaCi+Mg
Ca+AgCI=Ag+CaCI2
Answer:
In this experiment, different solutions are made by mixing water with different colors and amounts of food coloring. Students should notice that once the water and colors are mixed together, the liquid looks the same throughout. It is a solution—a homogeneous mixture
Explanation: