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3 years ago

Which of the following answers is NOT an example of repetition?

Physics

1 answer:

Step2247 [10]3 years ago

5 0

Answer:

the first one.

Explanation: I don't exactly but, I know the other three sounds more like repetition! Hope this helps

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How much work does the electric field do in moving a proton from a point with a potential of +125 v to a point where it is -55 v

777dan777 [17]

The work W done by the electric field in moving the proton is equal to the difference in electric potential energy of the proton between its initial location and its final location, therefore:
$W= qV_i - qV_f$
where q is the charge of the proton, $q=1 e = 1.6\cdot 10^{-19}C$ , with $e$ being the elementary charge, and $V_i = +125 V$ and $V_f = -55 V$ are the initial and final voltage.

Substituting, we get (in electronvolts):
$W=e(125 V-(-55 V))=180 eV$
and in Joule:
$W=(1.6 \cdot 10^{-19})(125 V-(-55V))=2.88 \cdot 10^{-17}J$

5 0

3 years ago

a vector a has components a x equals -5.00 m in a y equals 9.00 meters find the magnitude and the direction of the vector

Murrr4er [49]

Answer:

The magnitude = 10.30 m

The direction of the vector proceeds at angle of 119.05°

Explanation:

Given that:

A vector $\bar A$ has component $A_x$ = -5 m and $A_y$ = 9 m

The magnitude of vector $\bar A$ can be represented as:

$\bar A$ = $\sqrt{A_x^2 + A_y^2}$

$\bar A$ = $\sqrt{(-5)^2 + (9)^2}$

$\bar A$ = $\sqrt{25 + 81}$

$\bar A$ = $\sqrt{106}$

$\bar A$ = 10.30 m

If we make $\bar A$ an angle $\theta$ with y- axis:

Then; tan $\theta$ = $\frac{A_x}{A_y}$

tan $\theta$ = $\frac{5}{9}$

tan $\theta$ = 0.555

$\theta$ = tan⁻¹ (0.555)

$\theta$ = 29.05°

Angle with positive x-axis = 90 + $\theta$

= 90° + 29.05°

= 119.05°

5 0

3 years ago

The reactive force developed by a jet engine to push an airplane forward is called thrust, and the thrust developed by the engin

finlep [7]

The value of the thrust developed by the engine of a boeing 777 in N and Kgf are ;

i) 376616N

ii) 38430Kgf

<h3>What is force?</h3>

Force is a push or a pull. The reactive force always serve to balance the applied force. We are here asked to convert the the thrust developed by the engine of a boeing 777 which is about 85400 lbf to the following units;

i) N

ii)kgf

Thus;

1 Ib = 0.45 Kg

1 lbf = 0.45 Kg * 9.8 m/s^2 = 4.41 N

We know that;

1 lbf = 4.41 N

85400 lbf = 85400 lbf. * 4.41 N/1 lbf

= 376616N

Again;

1 lbf = 0.45 Kgf

85400 lbf = 85400 lbf * 0.45 Kgf/1 lbf

= 38430Kgf

Learn more about force:brainly.com/question/13191643

#SPJ1

3 0

1 year ago

As a ball is released inside Earth's gravitational field and begins to fall to the ground

Kruka [31]

Answer:

Explanation:

forecasted for the miscommunication between range and the other day

8 0

3 years ago

A common isotope of Carbon has an atomic number of 6 and a mass number of 13. How many neutrons are in an atom of this isotope?

Yuki888 [10]

Answer:

D. 13

Explanation:

For most elements other than hydrogen, isotopes are named for their mass number. For example, carbon atoms with the usual 6 neutrons have a mass number of 12 (6 protons + 6 neutrons = 12), so they are called carbon-12. Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13).

<h3>HOPE IT HELPS</h3>

<h2>mark me in brainliest answers please please please</h2>

6 0

3 years ago