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Natalka [10]
2 years ago
15

I need help ASAP please :)

Physics
1 answer:
rusak2 [61]2 years ago
7 0

Density offers a convenient means of obtaining the mass of a body from its volume or vice versa; the mass is equal to the volume multiplied by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M/d).

M = V d

M = 1.4 * 2 = 2.8 kg

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True testing means that a serious effort is made to falsify (“disprove”) each possible explanation.
Fudgin [204]

Answer:

False.

Explanation:

This explanation is the opposite of true testing - a term known as falsifiability. Falsifiability, when it relates to science, refers to how it should be possible to prove a hypothesis or theory wrong. Thus, the point of testing for falsifiability is to test in which condition is the theory wrong.  

A term that might relate to the phrase ‘true testing’ used in the question would be testability. Which refers to the practice of testing a hypothesis or theory to see whether it is true or false.  

7 0
3 years ago
A ball is thrown horizontally from the top of
Serhud [2]

Answer:

52.38 m/s

Explanation:

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9. What happens to the particles of a medium when the temperature is high?
Karo-lina-s [1.5K]

Answer:

IT IS D

Any help you can ask me

4 0
3 years ago
_______ physics cannot account for blackbody radiation.
uysha [10]
Astrophysics is the answer
4 0
3 years ago
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Three deer, a, b, and c, are grazing in a field. deer b is located 62.1 m from deer a at an angle of 54.3 ° north of west. deer
sveticcg [70]

by cosine law we know that

c^2 = a^2 + b^2 - 2 abcos\theta

\theta = 180 - 54.3 - 79.1 = 46.6 degree

now using above equation

93.8^2 = 62.1^2 + b^2 - 2*62.1*b * cos46.6

4942.03 = b^2 - 85.34 b

b^2 - 85.34b - 4942.03 = 0

by solving above quadratic equation we have

b = 124.9 m

so it is at distance 124.9 m from deer a

4 0
3 years ago
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