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3 years ago

What is one advantage of using primary sources when doing research on an

Physics

2 answers:

DiKsa [7]3 years ago

8 0

Primary sources are the records written by the the scientists regarding their own experiments.

Answer: Option A

Explanation:

Primary sources are the direct or first-hand snippets written by the scientists on their own based on their experiments that would help in providing additional evidence to the research. Using primary source help in thinking critically and analytically with respect to the research.

It helps in exploring with several perspectives that would result in figuring out additional data. Primary data supports in coping with the contradictions. It acts as an evidence for the data since it is the direct resource related to the experiment.

aleksandr82 [10.1K]3 years ago

4 0

Answer:

The Correct Answer Is A

Explanation:

Primary Sources Has The Ideas, Work, And Opinions Written By The Person Themselves, Eliminating Work And Ideas Being Added On To It In Secondary Sources

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Mr. Barcena reached a top speed of 5m/s in 2 seconds from rest, what was his average acceleration including units?

sashaice [31]

Answer:

Explanation:

The equation for acceleration is

$a=\frac{v_f-v_0}{t}$ where vf is the final velocity and v0 is the initial velocity. Filling in:

$a=\frac{5-0}{2}$ so

a = 2.5 m/s/s

4 0

3 years ago

A bug walks exactly halfway around the edge of a circular cupcake with a diameter of 5 cm what is the distance he traveled and w

adelina 88 [10]

The circumference of a circle is (pi) x (diameter)

The circumference of the cupcake is (pi) x (5 cm)

Halfway around is (1/2) x (pi) x (5 cm) = (2.5 pi cm) = about 7.85 cm

The 'why' appears up above, in the first 2 lines of this solution.

7 0

4 years ago

Sports managers have the potential to earn more than a million dollars per year. True false

andriy [413]

Answer:

true

Explanation:

hope this helped!

4 0

3 years ago

A 2.3 m long wire weighing 0.075 N/m is suspended directly above an infinitely straight wire. The top wire carries a current of

ZanzabumX [31]

Answer:

Explanation:

Magnetic field near current carrying wire

= $\frac{\mu_0}{4\pi} \frac{2i}{r}$

i is current , r is distance from wire

B = 10⁻⁷ x $\frac{2\times49}{r}$

force on second wire per unit length

B I L , I is current in second wire , L is length of wire

= 10⁻⁷ x $\frac{2\times49}{r}$ x 33 x 1

= 3234 x $\frac{10^{-7}}{r}$

This should balance weight of second wire per unit length

3234 x $\frac{10^{-7}}{r}$ = .075

r = $\frac{3234}{.075}$ x 10⁻⁷

= .0043 m

= .43 cm .

5 0

4 years ago

What is the magnitude of electrical force of attraction between an copper nucleus (29 protons) and its innermost electron if the

Agata [3.3K]

The charge of the copper nucleus is 29 times the charge of one proton:
$Q=29 q= 29 \cdot 1.6 \cdot 10^{-19}C=4.64 \cdot 10^{-18}C$
the charge of the electron is
$e=-1.6 \cdot 10^{-19}C$
and their separation is
$r=1.0 \cdot 10^{-12} m$

The magnitude of the electrostatic force between them is given by:
$F=k_e \frac{Qe}{r^2}$
where $k_e$ is the Coulomb's constant. If we substitute the numbers, we find (we can ignore the negative sign of the electron charge, since we are interested only in the magnitude of the force)
$F=(8.99 \cdot 10^9 Nm^2C^{-2}) \frac{(4.64 \cdot 10^{-18}C)(1.6 \cdot 10^{-19}C)}{(1.0 \cdot 10^{-12} m)^2}=6.68 \cdot 10^{-3} N$

3 0

4 years ago