Answer:
C
Explanation:
I am snart plus I took the same test last year
Answer: solid liquid and gas
Explanation: The three states of matter are the three distinct physical forms that matter can take in most environments:
Answer:
Explanation:
conservation of momentum
initial momentum is zero
Lets say that m₁ moves along the x axis
and m₂ moves along the y axis
in the y direction
0 = m₁(0) + m₂(30) + m₃(vy)
0 = m₁(0) + m₂(30) + 3m₂(vy)
-3m₂(vy) = m₂(30)
vy = -10 m/s
in the x direction
0 = m₁(30) + m₂(0) + m₃(vx)
0 = 2m₂(30) + m₂(0) + 3m₂(vx)
-3m₂(vx) = 2m₂(30)
vx = -20 m/s
v = √(-10² + -20²) = 10√5 m/s ≈ 22.36 m/s
θ = arctan(-10/-20) = 206.56505... ≈ 206.6° CCW from the + x axis
Answer:
2.3687599 m/s
0.91106 m/s
0.617213012 J
Explanation:
f = Frequency = 
A = Amplitude = 0.13 m
k = Spring constant
m = Mass of object = 0.22 kg
Angular velocity is given by

Velocity is given by

Speed when it passes the equilibrium point is 2.3687599 m/s
Frequency is given by

x = Displacement = 0.12 m
In this system the energies are conserved

The speed when it is 0.12 m from equilibrium is 0.91106 m/s
The energy in the system is given by

The total energy of the system is 0.617213012 J