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Savatey [412]
3 years ago
15

An isotope of an element will be radioactive if it has an unstable ratio of____and_____

Physics
1 answer:
sammy [17]3 years ago
5 0
Neutrons and protons
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Chemical energy stored in food cannot be transformed into mechanical energy true or false
Orlov [11]
If that statement were true, then you would never have any reason to eat.
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Where WOULD you get the energy to stand up and walk, if it didn't
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The whole idea is pretty absurd.  I guess the statement is not true.
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Question 1
valentina_108 [34]

The distance covered is simply the length of the entire trip, which is 12m + 16m, or 28m.

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6 0
3 years ago
Suppose a square wave signal has a 65 percent duty cycle and an on-state voltage of 40 volts DC. What is the average DC voltage
Ierofanga [76]

Answer:

The voltage is \= DC _v  =    2.6 \  V

Explanation:

From the question we are told that

  The duty cycle is  p =  65% = 0.65

   The on - state voltage is  V  =  40 \  volt

   

Generally the average DC voltage is mathematically represented as

        \= DC _v  =   p *  V

=>      \= DC _v  =     40 * 0.65

=>      \= DC _v  =    2.6 \  V

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2 years ago
What happens in the process of gravitational condensation?
marissa [1.9K]

Answer:

An object decreases in size due to the collision of materials. An object increases in size due to the addition of materials. Gas particles are formed from solar nebula materials.

6 0
3 years ago
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What is dark energy?
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Dark energy is a theoretical repulsive energy that causes the acceleration to the expansion of the universe. Among the choices, the nearest answer would be D. Dark energy can also be defined as a new form of energy, that is a dynamic field that fills up space but has an effect opposite to that of normal energy.
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