C. Its acceleration is zero.
Step-by-step explanation:
Velocity is defined as the change in distance over time;
d₂- d₁ / t whereby;
d₂ – final distance
d₁ - initial distance
t - time
Acceleration, on the other hand, is the change in velocity over time;
Δv / t whereby;
v – velocity
t – time
When velocity is constant, change in velocity (Δv) is zero (0).
Therefore for acceleration to be zero (0), change in velocity has to be zero because;
Only when a = 0/t is zero (0)
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Answer:
It would be 3C, 2C, 0C, -6C, -7C, -9C, then -18C
Step-by-step explanation:
This is because the larger a postive number is above 0, the greater it is. Along with this, the smaller a negative number is, the less it is.
Answer: 272
Step-by-step explanation:
Given : A pilot sample of 25 voters found that 21 of them intended to vote in the election.
i.e.
and the voters sampled = 25
Significance level :
Critical value :
Margin of error: E = 0.04
The formula to find the sample size is given by :-
Then, the additional voters need to be sample =
Hence, the region should sample 272 additional voters.