Andy has two samples of liquids. Sample A has a pH of 4, and sample B has a pH of 6. What can Andy conclude about these two samp
1 answer:
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The magnitude of the change in potential energy is equal to the kinetic energy,
or
Here, V is potential difference, q is charge, m is mass and v is velocity.
We can also write,
Given
Substituting this value with mass of proton, and charge of proton,
we get
Therefore, the speed of proton is .
Answer:
3.1 m/s
Explanation:
The acceleration of the ball is given by:
where
v is the final velocity
u is the initial velocity
t is the time elapsed
Here we know:
a = 1.8 m/s^2 is the acceleration
v = 7.6 m/s is the final velocity
t = 2.5 is the time elapsed
Solving for u, we find the initial velocity of the ball: