Answer:
Reflection of sound waves also leads to echoes. Echoes are different than reverberations. Echoes occur when a reflected sound wave reaches the ear more than 0.1 seconds after the original sound wave was heard. ... Reflection of sound waves off of curved surfaces leads to a more interesting phenomenon.
Answer:
The Top 5 Muscular Endurance Exercises
Plank.
Body weight squats.
Walking lunges.
Pushups.
Situps
Explanation: To do these exercises you must sustain your muscles for a long time. The more you endure it, the more muscular endurance you have.
Answer:
The impulse of the net force on the ball during its collision with the wall is 25N
Explanation:
Step one :
Given data
Mass =5kg
Velocity v1=10m/s
Velocity v2=5m/s
The equation for impulse is given as
P=m(v1-v2)
Where P =impulse
Substituting our values into the equation we have
P=5*(10-5)
P=5*5
P=25N
The impulse 25N
What is impulse?
Impulse is the change of momentum of an object when the object is acted upon by a force for an interval of time.
Answer:
I belive it is c
Explanation: If an object is at rest it shall stay at rest until an equal or oppisite force is applied.
