Answer:
Right now I have three.
Explanation: Thanks for the points luv ^-^.
The answer to this question is b
Answer:
Compression- pushing together
Refraction- pulling apart
Wavelength- the length of the wave
Explanation:
I just knew it
~Plz click the crown~
Answer:
The force exerted by the floor is 80 N.
Explanation:
Given that,
Mass of ball = 0.5 kg
Velocity= 4 m/s
Time t = 0.05 s
When the ball rebounds then the kinetic energy is

Where, m = mass of ball
v = velocity of ball
Put the value into the formula


The average force exerted by the floor on the ball = change in kinetic energy over collision time


Hence, The force exerted by the floor is 80 N.
Answer:
1.2
Explanation:
2.0 mol O₂ × (3 mol CO₂ / 5 mol O₂) = 1.2 mol CO₂