3 years ago

Why do some scientists not use controlled experiments?

1 answer:

7 0

Observational studies are a prime example. Observational data is more reflective of the real environments that scientists make their inferences to than controlled experiments. The disadvantage of observational studies is that the variability is far greater. <span />

You might be interested in

How many meters are in a gigameter?

gladu [14]

Answer:

1 gigameter = 1e+9 meter

7 0

3 years ago

Ytuugtfghrddfghjiuyhhffdfvhj

Tema [17]

Answer:

hwjsjsjsjksksnsjkdkdnnd

4 0

2 years ago

Read 2 more answers

An object moves with a constant speed of 20 m/s on a circular track of radius 100 m. What is the tangential acceleration of the

MissTica

Answer:4s^-1

Explanation:Tangential Acceleration=v^2/r=(20)²/100=400/100

4 0

3 years ago

804 n of force are applied to a 51.7 kg. What is the acceleration that the object experiences?

Andreyy89

We can use Newton II here (where F=m*a), that F is the net (or resultant) force on the object, m is the mass of the object and a is the acceleration the object experiences.

This means, in this case there would be no friction and absolutely no other force which gives a component in the plane of motion, only then can you assume that F=804N.

Now using F= m*a

804 = 51.7*a

Therefore a = 804/51.7 = 15.55 m/s²

7 0

3 years ago

A 783kg elevator rises straight up 164 meters. What is the potential energy of the elevator?

Vilka [71]

Answer:

$potential \: energy = mgh \\ m = 783 \\ g = 10 \\ h = 164 \\ pe = 783 \times 10 \times 164 \\ = 7830 \times 164 \\ = 1284120 \: joule \\ thank \: you$

8 0

2 years ago

Read 2 more answers