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3 years ago

14

How can scientist best confirm and validate the result of an experiment so they can publish their findings?

2 answers:

vladimir2022 [97]3 years ago

7 0

Answer:. By creating a replicable experiment

Explanation:

ValentinkaMS [17]3 years ago

5 0

$Question$

How can scientist best confirm and validate the result of an experiment so they can publish their findings?

Answer:

Hi, there!

D. By creating a replicable experiment Is The correct Answer!

Hope this Helps!!

-xXxAnimexXx- ♚♛♕♔ッ✨♚

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A steel cable lying flat on the floor drags a 20 kg block across a horizontal, frictionless floor. A 110 N force applied to the

sammy [17]

Answer:

The mass of the cable is 4.94 kg

Explanation:

It is given that,

Mass of the block, m = 20 kg

Force applied to the cable, F = 110 N

Speed of the block, v = 4.2 m/s

Distance, d = 2 m

Let a is the acceleration of the block. It can be calculated using the third equation of motion as :

$v^2-u^2=2ad$

$(4.2)^2-(0)^2=2a\times 2$

$a=4.41\ m/s^2$

Let m' is the mass of the cable. It can be calculated using the second law of motion as :

$m'=\dfrac{F}{a}-m$

$m=\dfrac{110\ N}{4.41\ m/s^2}-20$

m = 4.94 kg

So, the mass of the cable is 4.94 kg. Hence, this is the required solution.

5 0

3 years ago

Find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock face. Ass

Naddika [18.5K]

Answer:

L = 4.711 *10^{-6} kg m2/s

Explanation:

$i =\frac{ml^3}{3}$

$= \frac{0.00*.15^2}{3}$

=4.5*10^-5

angular velocity

$\omega = \frac{2\pi}{60}$

= 0.1047 rad/s

the angular momentum,

$L = I\omega$

$L = 4.5*10^{-5}* 0.1047 rad/s$

$L = 4.711 *10^{-6} kg m2/s$

3 0

3 years ago

Read 2 more answers

Describe the steps of aerobic cellular respiration and the amount of energy produced by each step.

Setler [38]

Aerobic cellular respiration have 3 parts, this is Glycolysis, Pyruvate Oxidation and Krebs cycle.

<h3>How is the aerobic breathing process?</h3>

Aerobic respiration consists of carrying out the process of degradation of organic molecules, reducing them to molecules with practically no releaseable energy. The products of the initial degradation of the organic molecule are combined with oxygen in the air and transformed into carbon dioxide and water.

In this case, Aerobic cellular respiration have 3 parts:

Glycolysis(yeilds 2ATP & 2NADH).
Pyruvate Oxidation(yeilds 2NADH).
Krebs cycle(yeilds 2GTP,2FADH2 & 6NADH).

So the total =4ATPs (2GTP equivalent to 2ATP) +10NADH (equivalent to 30ATPs) + 2FADH2(4 ATPs) =38 ATPs.

See more about Aerobic cellular respiration at brainly.com/question/22531444

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3 0

2 years ago

An object on Earth's surface has a weight of 609 N. What is its mass?

mars1129 [50]

Answer:

62.1 kg

Explanation:

Weight = mass × acceleration

609 N = mass × (9.8)

The acceleration is 9.8 because that is the acceleration of gravity.

Divide both sides by 9.8 to isolate the mass.

609N/9.8 = mass

62.1 kg =mass

6 0

4 years ago

To compare the hearing capacities of 5 of his friends, Ravi designs a simple experiment. He places a CD player at the end of a l

aliya0001 [1]

Answer:

A) having each person listen to just 1 song instead of 5.

Explanation:

Ravi could accurately use the outcome to compare the hearing capacities of his friends by this experiment if appropriate precautions are observed.

Playing 5 well known songs simultaneously could result to the interference of sounds when each participant moves away from the player. Which could naturally cause the variation in volume of the songs played with respect to the increasing distance.

Therefore, the reliability of the result from this experiment can be increased if each person listen to just 1 song instead of 5 at a predetermined volume. Each participant would be able to focus on hearing a song during the experiment.

8 0

4 years ago