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the answer is the forth one treatment of cancer
1. The balls move to the opposite direction but the same speed. This represents Newton's third law of motion.
2. The total momentum before and after the collision stays constant or is conserved.
3. If the masses were the same, the velocities of both balls after the collision would exchange.
4 and 5. Use momentum balance to solve for the final velocities.
Answer:
The magnitude is:
The direction of E is in the negative x-direction.
Explanation:
The electric field equation is:

Where:
- Q is the charge (we can choose the electron or the proton)
- r is the distance (in our case is at the midpoint 973/2 nm)
- k is the Coulomb constant (
)
Using the electron charge (
)
The magnitude is:
The direction of E is in the negative x-direction.
I hope it helps you!
Answer:
V = 42187 m/s = 42.18 km/s
Explanation:
given data:
mass of sun is 
radius of earth orbit is 
minimum speed can be determined by using following formula
}
where G is 
Plugging all value to get desired value

V = 42187 m/s = 42.18 km/s