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Alex777 [14]
3 years ago
8

Jimmy walks 3 miles east then 1 mile west. What is the distance Jimmy traveled?

Physics
1 answer:
AleksAgata [21]3 years ago
4 0

Answer:

2 miles

Explanation:

Jimmy walked forward 3 miles east (to the right)

Then, he backtracked and walked 1 mile west (to the left)

This can be written as:

3 - 1 = ?

3 - 1 = 2

Therefore, Jimmy traveled a total of 2 miles.

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An electron, starting from rest, accelerates through a potential difference of 40.0 V. What is the final de Broglie wavelength o
kondor19780726 [428]

Answer:

1.94 x 10^-10 m

Explanation:

V = 40 V

The relation for the de broglie wavelength and teh potential difference is given by

\lambda = \frac{12.27}{\sqrt{V}} Angstrom

\lambda = \frac{12.27}{\sqrt{40}} Angstrom

λ = 1.94 Angstrom = 1.94 x 10^-10 m

6 0
3 years ago
A 50 wt% ni–50 wt% cu alloy is slowly cooled from 1400°c to 1200°c:
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This composition from Ni and Cu is called cupronickel.It is high in copper and silver in colour and highly resistant to corrosion, particularly seawater. Cooper nickel is used in the industry, in marine engineering . Melting point is 2254,73 F, which is 1234.85 Celsius. In this range of tempereature the cupronickel melts.
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3 years ago
The y-intercept of a position-time graph of an object gives the average velocity of the object.
finlep [7]

<em>The y-intercept of a position-time graph of an object gives the average velocity of the object is False.</em>

<u>Answer:</u> <em>False. </em>

<u>Explanation:</u>

The initial position of the object can be obtained by calculating the Y intercept of  a position-time graph.  In a position-time graph, the independent  variable is time  and dependent variable is position. Y axis is the position axis and x axis is the time axis.

The equation of the graph is given by y =mx + c. m is the slope of the graph and c is the y intercept. When a particle starts from the origin its y intercept is zero.

The nature of the graph gives us an idea about velocity. When the velocity is positive, the position- time graph has positive slope and when the velocity is positive the graph has negative slope.

4 0
3 years ago
What about D, you forgot one
Schach [20]
What is the problem?
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3 years ago
Maceo is making rock candy. Which best describes the steps she should take?
Andru [333]

Answer:

The answer is heat a saturated sugar water solution, dissolve more sugar, then let the solution cool

Explanation:

3 0
3 years ago
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