INVERTEBRATE refers to animals such as insects, sea anemones, and worms that lack an interior skeleton.
Interior skeleton are also identified as back bone. So organisms without back bone are called invertebrates.
Covalent .........................
Answer:
Mass of first objects, m₁= 100 g = 0.1 kg
Mass of second object, m₂ = 200 g = 0.2 kg
Velocity of m₁ before collision, v₁= 2 m/s
Velocity of m₂ before collision, v₂ = 1 m/s
Velocity of m₁ after collision, v₃ = 1.67 m/s
Velocity of m₂ after collision = v₄
According to the law of conservation of momentum:
Total momentum before collision = Total momentum after collision
m₁v₁ + m₂v₂ = m₁v₃+ m₂v₄
⇒ 0.1 * 2 + 0.2 * 1 = 0.1 * 1.67 + 0.2 * v₄
⇒ 0.4 = 0.67 + 0.2 * v₄
Explanation:
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