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3 years ago

Reproducibility is the ability of data to be .PublishedDuplicatedChangedInvalidated

Physics

2 answers:

Nastasia [14]3 years ago

7 0

Answer:

Duplicated

Explanation:

Reproducibility is the ability of a data set to be easily duplicated.

It is also the tendency of a given data to be replicated. It is usually a measure of how precise and accurate experimental readings might have been.

A duplicated data set will look like the original one and can also be relied upon when in use.

One of the hall marks of a good hypothesis is that they must underscore the need for reproduciblity.

Marizza181 [45]3 years ago

7 0

Answer:

Duplicated

Explanation:

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A particle of mass m moves under the influence of a force given by F = (−kx + kx3/α2) where k and α are positive constants. a) F

Romashka-Z-Leto [24]

Answer:

Explanation:

a ) F = (-kx + kx³/a²)

intensity of field

I = F / m

= (-kx + kx³/a²) / m

If U be potential function

- dU / dx = (-kx + kx³/a²) / m

U(x) = ∫ (kx - kx³/a²) / m dx

= k/m ( x²/2 - x⁴/4a²)

b )

For equilibrium points , U is either maximum or minimum .

dU / dx = x - 4x³/4a² = 0

x = ± a.

dU / dx = x - x³/a²

Again differentiating

d²U / dx² = 1 - 3x² / a²

Put the value of x = ± a.

we get

d²U / dx² = -2 ( negative )

So at x = ± a , potential energy U is maximum.

c )

U = k/m ( x²/2 - x⁴/4a²)

When x =0 , U = 0

When x= ± a.

U is maximum

So the shape of the U-x curve is like a bowl centered at x = 0

d ) Maximum potential energy

put x = a or -a in

U(max) = k/m ( x²/2 - x⁴/4a²)

= k/m ( a² / 2 - a⁴/4a²)

= k/m ( a² / 2 - a²/4)

a²k / 4m

This is the maximum total energy where kinetic energy is zero.

4 0

3 years ago

Which of electromagnetic radiation has the shortest wavelength?

9966 [12]

Answer:

The electromagnetic radiation with the shortest wavelength are gamma rays.

Explanation:

Photons are the particles that constitute light and its kwnow that lights propagates as electromagnetic waves.

The electromagnetic spectrum is the distribution of radiation due to the different frequencies at which it radiates and its different intensities, that radiation is formed by electromagnetic waves, which are transverse waves formed by an electric field and a magnetic field perpendicular to it.

The distribution of the radiation in the electromagnetic spectrum can also be given in wavelengths, but it is more frequent to work with it at frequencies, the highest being that of gamma rays, followed by X-rays, ultraviolet rays and the visible region , and those of lower frequencies, which correspond to infrared, microwave and radio waves.

The energy given for each wavelength can be found by means of the following equation.

$E = h\nu$ (1)

but $c = \lambda \cdot \nu$

$\nu = \frac{c}{\lambda}$

$E = \frac{hc}{\lambda}$ (2)

Where E is the energy, h is the planck's constant and $\lambda$ is the wavelength.

So, it can be see in equation 2 that when the wavelength increases the energy decreases (inversely proportional).

Hence, the electromagnetic radiation with the shortest wavelength are gamma rays.

4 0

2 years ago

Find the acceleration of an object that has a mass of 6 kg, if it is acted upon by a net force of 42 N.

pychu [463]

Answer:

7 m/s²

Explanation:

The formula for force is:

$f= m*a$

We want to find acceleration, so we must rearrange the formula for $a$ . Divide both sides of the equation by $m$

$\frac{f}{m}=\frac{m*a}{m}$

$\frac{f}{m}=a$

Acceleration can be found by dividing the force by the mass.

The force is 42 newtons and the mass is 6 kilograms. A newton is equal to 1 kg * m/s², therefore the force is 42 kg* m/s².

$f= 42 kg*m/s^2\\m=6 kg$

Substitute the values into the formula.

$a=\frac{f}{m}$

$a=\frac{42 kg*m/s^2}{6kg}$

Divide. When we divide, the kg in the numerator and denominator will cancel each other out.

$a=\frac{42}{6}m/s^2$

$a= 7 m/s^2$

The acceleration of the object is 7 meters per square seconds.

7 0

3 years ago

How do we find work from a force-displacement graph when the force exerted is not constant?

Artemon [7]

Answer:

Explanation:

Read forces directly from the graph.

Read displacements directly from the graph.

Use the area under the graph to find the work done by the force. This is equal to the kinetic or potential energy the object gains due to the application of the force.

6 0

3 years ago

A pallet of bricks is to be suspended by attaching a rope to it and connecting the other end to a couple of heavy crates on the

SashulF [63]

Answer:

<h3>C.250 lb is the answer...</h3>

5 0

3 years ago