3 years ago

Straw polls are___. A. scientifically based B. representative samples C. biased sampling D. cluster samples

1 answer:

8 0

Straw polls are considered to be a form of biased sampling. An example of a straw poll is an unofficial vote like who you would like to be the President without actually casting your ballot.

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Your electric drill rotates initially at 5.35 rad/s. You slide the speed control and cause the drill to undergo constant angular

Agata [3.3K]

Answer:

The angular displacement is $\theta = 29.6 \ rad$

Explanation:

From the question we are told that

The initial angular speed is $w = 5.35 \ rad/s$

The angular acceleration is $\alpha = 0.331 rad /s^2$

The time take is $t = 4.81 \ s$

Generally the angular displacement is mathematically represented as

$\theta = w * t + \frac{1}{2} \alpha * t^2$

substituting values

$\theta = 5.35 * 4.81 + \frac{1}{2} * 0.331 * (4.81)^2$

$\theta = 29.6 \ rad$

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olga55 [171]

Destructive interference :)

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