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1 year ago

What of the following is not a characteristic of a longitudinal study?

1 answer:

7 0

Data is collected only once from a participant is not a characteristic of a longitudinal study. Thus, the correct option is A.

<h3>What is a Longitudinal study?</h3>

A Longitudinal study may be defined as a scientific approach to a specific research that involves recounted compliances of the duplicate variables over short or long periods of time.

A longitudinal study involves the collection of data from the same participants at different points in time, collection of data from a large sample size at the same time, and collection of data that can span over several years.

Therefore, the correct option for this question is A.

To learn more about Longitudinal study, refer to the link:

brainly.com/question/25681723

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Use the drop-down menu to complete each statement. In this excerpt, Nelson Mandela is saying that were important for their victo

diamong [38]

Answer:

Economic sanctions and hard power

Explanation:

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1 year ago

The variables x and y are directly proportional, and y=4 when x=3. What is the value of y when x=15 ?

lara [203]

Answer:

Explanation:

15 divided by 3 is 5 so y equals 4 times 5 equaling 20

hope this helps

7 0

1 year ago

A bicycle wheel is mounted on a fixed, frictionless axle, with a light string wound around its rim. The wheel has moment of iner

xz_007 [3.2K]

The final rotational speed ω_final and the instantaneous power P delivered to the wheel are; ω_f = √((ω_i)² + 2(FL/(kmr²) and P = Frω_i

<h3>What is the Instantaneous Power?</h3>

A) From rotational kinematics, the formula for the final angular velocity is;

ω_f = √((ω_i)² + 2αθ)

where;

α is angular acceleration

θ = L/r. Thus;

ω_f = √((ω_i)² + 2α(L/r))

Now, α = T/I

Where;

I is moment of inertia = k*m*r²

T is t o r q u e = F * r

Thus;

α = (F * r)/(kmr²)

α = F/(kmr)

ω_f = √((ω_i)² + 2(F/(kmr))(L/r))

ω_f = √((ω_i)² + 2(FL/(kmr²)

B) Formula for instantaneous power is;

P = Fv

where at t = 0; v = rω_i

Thus;

P = Frω_i

Read more about Instantaneous Power at; brainly.com/question/14244672

4 0

1 year ago

Which addition expression has the sum 8 – 3i ? (9 2i) (1 – i) (9 4i) (–1 – 7i) (7 2i) (1 – i) (7 4i) (–1 – 7i)

charle [14.2K]

Answer:

B- (9 + 4i) + (–1 – 7i)

Explanation:

5 0

2 years ago

Read 2 more answers

Find the total area of the solid figure. 78 sq. in. 90 sq. in. 60 sq. in.

yaroslaw [1]

The total area of the figure will be 245 sq. in.

<h3>Total area of a cylinder</h3>

The figure is a cylinder and the total area of a cylinder is given by the formula below:

Total Area of a cylinder = 2πrh+2πr^2

Where r is the radius, h is the height of the cylinder, and π is constant with a value of 22/7.

In this case, looking at the image, the radius is 3" while the height is 10". Substituting these values into the formula above, we have:

Total Area = 22/7((2x3x10) + (2x3^2)) = 22/7(60+18)

= 245 sq. in.

Thus, the total area of the solid figure is 245 sq. in.

More on the area of cylinders can be found here: brainly.com/question/16134180

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5 0

1 year ago