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choli [55]
3 years ago
5

Which example is of researcher bias in interpreting data?

Physics
1 answer:
VikaD [51]3 years ago
5 0

Answer:

A researcher seeks to prove that babies smile at two months old. She counts some confused expressions as smiles.

Explanation:

This is the answer because its not actual date due to the fact she's using her opinion to decided whether or not the expression a baby is making is a smile, whereas the other answers had factual data involved.

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A constant net torque is applied to an object. Which one of the following will NOT be constant?
love history [14]

Answer:

B) Angular velocity

Explanation:

The equivalent of Newton's second law for the rotational motions can be written as:

\tau = I \alpha

where

\tau is the net torque applied to the object

I is the moment of inertia

\alpha is the angular acceleration

From the formula we see that when a constant net torque \tau is applied, then the object also has a constant angular acceleration, \alpha.

But we also know that

\alpha = \frac{d\omega}{dt}

where \omega is the angular velocity: so, a constant angular acceleration means that the angular velocity of the object is changing, so the correct answer is

B) Angular velocity

(moment of inertia and center of gravity do not change since they only depend on the mass and the geometry/shape of the object, which do not change)

7 0
3 years ago
According to Newton's 3rd law of motion, if you hit a baseball with a bat it will _____.
Anna [14]
Fly in a straight line unless an outside force changes its course because i tried it once in a baseball game that my mommy rekt me in.
4 0
3 years ago
Read 2 more answers
A cheetah runs at a speed of 27.6 m/s. If the
aleksklad [387]

Answer:

256.68m

Explanation:

that is the procedure above

8 0
3 years ago
An electric current in a metal consists of moving
Alik [6]
The answer would be (A) Protons
6 0
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How do dog whistles work?
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<em>The sound it emits comes from what is known as the ultrasonic range, a pitch that is so high humans can't hear it. Dogs can hear these sounds, however, as can cats and other animals. Because of this, the dog whistle is a favored training tool, though it may not be for every dog parent.</em>

7 0
3 years ago
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