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GarryVolchara [31]
3 years ago
6

The acceleration of a vertically thrown ball at the top of its path is?

Physics
1 answer:
ser-zykov [4K]3 years ago
5 0
C between zero and g
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Which states the purpose of an experiment?
Whitepunk [10]
B; to produce a hypothesis.

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The equilibrant is the equal to the resultant magnitude but opposite in direction.
natta225 [31]

Answer:

The answer is False......

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Two acrobats flying through the air grab and hold onto each other in midair as part of a circus act. One acrobat has a mass of 6
german

Answer:

Final velocity will be 1.4 m/sec

So option (a) is correct option

Explanation:

We have given there are two acrobats

Mass of first acrobats m_1=60kg and its velocity v_1=5m/sec

Mass of second acrobats m_2=50kg and its velocity v_2=-3m/sec

Now from conservation of momentum we know that

m_1v_1+m_2v_2=(m_1+m_2)v

60\times 5+50\times (-3)=(50+60)v

v=1.36=1.4m/sec

So option (a) is correct option

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3 years ago
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Question #14
Katena32 [7]

The decrease in energy in the hydrogen molecule is what allows its formation on Earth, but in stars the great energy of the explosion has a kinetic energy so great that electrons cannot bind to another atom, which is why hydrogen has a single atom.

The hydrogen molecule is a form that two hydrogen atoms share their electrons decreasing the total energy of the molecule, this bond has a covalent and hydrogen bonding characteristic.

In a stellar explosion, the energy released increases the energy of the hydrogen atom, for which we have two possibilities:

  • Its electron is lost, so we are in a single proton, in the case of structures where the proton and the elector are
  • The hydrogen atom remains but the energy of the atom is very high so the kinetic energy of the electron prevents the electron from being shared by the other atom and the molecule cannot be formed.

When the atoms are thrown into space, the separation between them is so high that it does not allow electrons to be shared and molecules cannot be formed either.

In conclusion, the decrease in energy in the hydrogen molecule is what allows its formation on Earth, but in stars the great energy of the explosion has a kinetic energy so great that electrons cannot join another atom, which is why the hydrogen has only one atom.

Learn more about the Hydrogen atom here:

brainly.com/question/22464200

6 0
3 years ago
A current of 9 A flows through an electric device with a resistance of 43 Ω. What must be the applied voltage in this particular
NeTakaya
Answer:
387 volts

Explanation:
Ohm's law is used to relate voltage, current and resistance.
The formula is as follows:V = I * R
where:
V is the applied voltage (measured in volts)
I is the current flowing (measured in amperes)
R is the resistance (measured in ohm)

In the given, we have:
current (I) = 9 amperes
resistance (R) = 43 ohm

Substitute with the givens in the above formula to get the voltage as follows:
V = 9 * 43
V = 387 volts

Hope this helps :)
4 0
3 years ago
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