1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Umnica [9.8K]
3 years ago
15

Which of the following is an example of a primary source?

Physics
1 answer:
Oduvanchick [21]3 years ago
8 0

Answer:

i think its no c.

a textbook written by a scientist. because its a first hand data.

You might be interested in
The following equation is an example of decay?<br><br> 232/90 TH---4/2 HE +228/88 RA?
DaniilM [7]

Answer:

Alpha decay

Explanation:

  • Alpha decay is one of the three major types of decays, others being, beta decay and gamma decay.
  • <em><u>When a radioactive isotope undergoes alpha decay it emits alpha particles. An alpha particle is equivalent to the nucleus of Helium atom.</u></em>
  • <em><u>Therefore, an atom undergoing decay, its atomic mass is decreased by 4 and its atomic number is decreased by 2. </u></em>
  • Thus, since 232/90 Th, has undergone alpha decay its mass number is reduced by 4 to 228 and its atomic number by 2 to 88, and becomes 228/88 Ra.
5 0
3 years ago
What force could be applied to a box to make the net force in the horizontal direction of zero​
Kazeer [188]

If there is no friction, the force that moves the box forward horizontally must be matched by the same force.

If there is friction, then the force moving it forward = frictional force + the additional force you need to add.

6 0
3 years ago
Near the equator, the patterns of convection currents are called ________.
tatyana61 [14]
<span>Near the equator, the patterns of convection currents are called Hadley Cells.
</span>

Hadley Cells refers to the low-latitude overturning movements that have air increasing at the equator and air dropping at roughly latitude of 30 degree and these cells are also responsible for the trade winds in the Tropics and control low-latitude patterns of weather.

8 0
3 years ago
How would you describe the difference between momentum and angular momentum?
zheka24 [161]

Answer:

Analogous

Explanation:

Momentum is linear

Angular momentum is spinning

momentum is based on the mass and has no geometric component.

Angular momentum is based on moment of inertia and greatly depends on how far the mass is from the center of spin.

3 0
3 years ago
True or false: electromagnets are an example of how magnetism can create electricity.
cestrela7 [59]

I dont really know but i think the first one is true super sorry

7 0
3 years ago
Other questions:
  • How loudness of a sound wave depends on the intensity of the sound wave?
    9·1 answer
  • The total amount of kinetic energy and potential energy within a system is called Question 4 options: A. thermal energy B.electr
    13·1 answer
  • Greg is boiling water on the stove for some noodles. what object can he safely hold while draining the water from the noodles af
    10·1 answer
  • Wнιcн deмonѕтraтeѕ condυcтιon
    14·1 answer
  • Light of wavelength 608.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 88.5 cm from the slit.
    9·1 answer
  • A car is moving 18 m/s to the eat. If it takes the car 5 seconds to reach a velocity of 19 m/s to the east, what is its accelera
    6·1 answer
  • True or false ,if false write right answer
    9·1 answer
  • A child pulls a wagon at a constant velocity along a level sidewalk. The child does this by applying a 22 newton force to the wa
    8·1 answer
  • 6. A yo-yo with a mass of 0.5 kg is tied to a radius of 2 m and is spinning at 3 m/s. What
    5·1 answer
  • How would you describe the atmosphere to a friend.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!