Loud
Crazed
Herd-like
Irrational
Deafening
Primitive
Possessed
Tribal
2NO2 means that there is 2 oxygen atoms and one nitrogen with two sets of that. So its the third one
99.0km/h =27.5m/s (this is the initial speed)
The final speed is zero
The distance is 50.0m
Therefore you use the formula:
vfinal²=vinitial²+2ad
a=(vfinal²-vinitial²)/2d
= (0²-27.5²)/(2x50.0)
=-7.5625 or in correct sigdigs -7.56m/s²
Hope this helps!
Answer:
θ₄ = 37.2º
Explanation:
For this exercise it must be solved in two parts, the first part we look for the critical angle, for this we use the law of refraction with the angle in the middle of transmission of tea = 90º
n₁ sin θ₁= n₂ sin 90
θ₁ = sin⁻¹
θ₁ = sin⁻¹ (1.33 / 1.43)
θ₁ = 68.4º
They indicate that the angle of incidence is half of the critical angle
θ₃ = 68.4 / 2 = 34.2º
Let's use the law of refraction again
n₁ sin θ₃ = n₂ sin θ₄
sin θ₄ =
sin θ₃
sin θ₄ =
sin 34.2
θ₄ = sin⁻¹ 0.604345
θ₄ = 37.2º
Answer:
Well your answer is peed not velocity because there is no direction
speed=0.086666666666667 m/s
Explanation:
Speed = distance/ time
7.8 m/ 90s
speed=0.086666666666667 m/s