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inysia [295]
3 years ago
6

HURRY PLEASE!!!!!

Physics
1 answer:
ycow [4]3 years ago
7 0

Who conducted the study?

Explanation:

One good question to ask the toothpaste making company is who conducted the study?

A company making toothpaste claiming a scientific study revealed that their toothpaste makes the mouth five times cleaner must have introduced a bias in this finding.

  • For a scientific study to be accepted and substantiated, it must have been tested and repeated by other scientists.
  • If no other scientist confirms this, then there is an obvious bias in the claim and it is not scientific.

Learn more:

Objective reporting brainly.com/question/2242789

#learnwithBrainly

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Suppose you want to to double a copper wire's resistance. To what temperature, in degrees Celsius, must you raise it if it is or
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Answer:

T=280.41 °C

Explanation:

Given that

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For copper wire

α(coefficient of Resistance) = 3.9 x 10⁻³ /°C

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8 0
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A baseball pitcher throws the ball towards the batter at 90 mph. His bat connects with the ball for a line drive, after which th
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Answer:

F=-18412.9N, where the minus indicates the direction is opposite to that of the throw.

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a)

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\frac{1\ hour}{3600\ seconds}=1

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So we have that:

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110 mph=110 \frac{miles}{hour}(\frac{1\ hour}{3600\ seconds})(\frac{1600\ meters}{1\ mile})=48.89m/s

145 g=145 g(\frac{1kg}{1000g})=0.145kg

b)

Newton's 2nd Law tells us that F=ma, and the definition of acceleration is a=\frac{\Delta v}{\Delta t}, so we have:

F=m\frac{\Delta v}{\Delta t}=m\frac{v_f-v_i}{t}

Taking the throw direction as the positive one, for our values we have:

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3 years ago
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