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andreyandreev [35.5K]
3 years ago
10

Identify which type of source is being described.

Physics
2 answers:
zavuch27 [327]3 years ago
7 0

Answer:

Identify which type of source is being described.

✔ Primary

sources present original research, whereas

✔ secondary

sources summarize scientific information.

Second Part----

Indicate whether each of the following is a primary source or a secondary source.

An article in Journal of the American Medical Association:  

✔ primary source

An article in Time magazine:  

✔ secondary source

An article in The New York Times newspaper:  

✔ secondary source

Explanation:

Just did the problem.

frez [133]3 years ago
3 0

Answer:

Primary, secondary

Explanation:

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A force of 15 newtons is used to push a box along the floor a distance of 3 meters. How much work was done?
jeka57 [31]

Answer:

<h3>The answer is 45 J</h3>

Explanation:

The work done by an object can be found by using the formula

<h3>workdone = force × distance</h3>

From the question

distance = 3 meters

force = 15 newtons

We have

workdone = 15 × 3

We have the final answer as

<h3>45 J</h3>

Hope this helps you

7 0
3 years ago
Stop to Think 7.1 Which one is greater- the attraction of the Earth on 1 kg lead or the attraction of 1 kg of led
Daniel [21]

Answer:

1 kg lead to earth is greater attraction as mass of earth is much more than 1kg lead.

Explanation:

Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass

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3 years ago
A long solenoid that has 1000 turns uniformly distributed over a length of 0.400 m produces a magnetic field of magnitude 1.00 ×
yKpoI14uk [10]

0.03185A current is required in the windings for that to occur.

  • Solenoids are essentially coils of cord. These generate a magnetic subject which strives a pressure over a steel element.A solenoid is a fundamental time period for a coil of cord that we use as an electromagnet.
  • We additionally consult with the tool which could convert electric power into mechanical power as a solenoid.
  • Actually it generates a magnetic subject for developing linear movement from the electrical cutting-edge. With using a magnetic subject.
  • Magnetic field at the centre of a solenoid of length 'L' having 'N' number of turns with a current 'I' is given by B=\frac{u_0NI}{L}   ...(1)

It is given that 1000 turns uniformly distributed over a length of 0.400 m produces a magnetic field of magnitude 1.00 ×10⁻⁴T .

Putting above values in equation (1) , we get

1.00\times10^{-4}=\frac{4\pi \times10^{-7}\times1000I}{0.400} \\\\I=\frac{1.00\times10^{-4} \times0.400}{4\pi \times1000} \\\\I=0.03185A

Learn about solenoid more here :

brainly.com/question/15218721

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7 0
2 years ago
Which of the following best describes the type of bond formed when sodium reacts with chlorine?
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Answer: ionic bond

Explanation: This type of chemical bond is called an ionic bond because the bond formed between two ions of opposite charge.

6 0
3 years ago
Haylie wanted to see if the type of paper changed how far a paper airplane flew. She made two paper airplanes, one with construc
Irina-Kira [14]

Answer:

Measuring tape

Explanation:

Since we are interested in finding the distance flown by the plane, we would use an instrument measuring length. Since distance flown by the plane is quite significant, a measuring tape is used

6 0
3 years ago
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