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Nana76 [90]
3 years ago
5

Margaret is the new director of research at a well-known pharmaceutical company. She has been asked to design a set of research

studies that will test the effectiveness of the new drugs that are being developed. Because Margaret is concerned about ensuring that experimenter bias and research participant bias do not influence the results, she should design a set of
Physics
1 answer:
Serjik [45]3 years ago
7 0

Answer:

Double blind experiment

Explanation:

It is an experimental method , which helps to avoid any impartiality and any error due to biasing .

The experiment give rise to very accurate results , which is very important for any experiment .

Hence , the new director Margaret , need to design a set of double - blind experiments.

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Answer:

Heat acclimatization :

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5 0
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The mass of the earth is 5.96/10kg^24. The radius of the earth is approximately 6.37x10^6 calculate the force of gravity
n200080 [17]
<h2>Answer:g=9.79ms^{-2},A object of mass m at the surface of earth experiences a force mg</h2>

Explanation:

Let M be the mass of earth.

Let R be the radius of earth.

Let G be the universal gravitational constant.

Given,

M=5.96\times 10^{24}Kg

R=6.37\times 10^{6}m

G=6.67259 \times 10^{-11}Nm^{2}Kg^{-2}

Let g be the acceleration due to gravity.

Then,g=\dfrac{GM}{R^{2}}

g=\frac{6.67259 \times 10^{-11}\times 5.96\times 10^{24}}{(6.37\times 10^{6})^{2}}

g=9.79ms^{-2}

A object of mass m at the surface of earth experiences a force mg

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<span>Heating food under a heat lamp is an example of heat transfer by <span>Radiation</span></span>
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A car has a mass of 1000 kg and accelerates at 2 meters per second per second. what is the magnitude of the net force exerted on
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F=ma
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