The catalyst lowers the activation energy.
Answer:
yes for both.
Explanation:
according to Newton's first law an object in motion will stay in motion until acted on by an outside force and an object at rest will stay at rest until acted on by an outside force. this means that an object that is moving will stay moving in the direction that it's moving and at the same speed unless there's an outside force acting on it and it will keep in motion until there is an outside force acting on it.
The final speed of the combined masses is 0.21 m/s
Applying the law of conservation of momentum:
Total momentum before collision = Total momentum after collision.
⇒ Formula:
MU+mu = V(M+m).................. Equation 1
⇒ Where:
- M = mass of the first body
- m = mass of the second body
- U = Initial speed of the first body
- u = Initial speed of the second body
- V = common final speed.
From the question,
⇒ Given:
- M = 0.24 kg
- U = 0.60 m/s
- m = 0.26 kg
- u = -0.20 m/s (traveling in opposite direction)
⇒ Substitute these values into equation 1
- 0.24(0.6)+0.26(-0.20) = V(0.24+0.2)
⇒ Solve for V
- 0.144-0.052 = 0.44V
- 0.44V = 0.092
- V = 0.092/0.44
- V = 0.209
- V ≈ 0.21 m/s
Hence the final speed of the combined masses is 0.21 m/s
Learn more about speed here: brainly.com/question/4931057