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elixir [45]
4 years ago
7

Two charged objects attract each other with a certain force. If the charge on one of the objects is doubled with no change in th

e other or the separation, the force between them
A.) quadruples
B.) doubles
C.) halves
D.) increases, but we can't say how much without knowing the distance between them
Physics
1 answer:
Vanyuwa [196]4 years ago
4 0
It is B. secod try i know its dumb but im trying to cheer myself up
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T/F if you were conducting this study, what other questions would you want to ask to ensure both the external and internal valid
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whether or whether the conclusions apply to people whose location and circumstances differ from those of the study's participants need to asked to ensure both the external and internal validity of your results

<h3>How can external validity be guaranteed?</h3>

Broad inclusion criteria that produce a study group that more closely mimics real-life patients and, in the case of clinical trials, selecting interventions that are practical to implement can both boost external validity.

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A scientist heats flexible container full of neon gas .what will most likely happen to the container as the gas absorbs heat
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As the container starts to heat up, so will the neon gas. Heat is nothing but energy, and when you add energy to a gas, it will start vibrating much faster and hit the edges of the container at a higher rate and a faster velocity. Therefore, it's possible to deduce that the container will most likely rupture and/or "explode". 
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3 years ago
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Third-largest ocean?
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A series RL circuit includes a 6.05 V 6.05 V battery, a resistance of R = 0.655 Ω , R=0.655 Ω, and an inductance of L = 2.55 H.
Ivenika [448]

Answer:

The induced emf 1.43 s after the circuit is closed is 4.19 V

Explanation:

The current equation in LR circuit is :

I=\frac{V}{R} (1-e^{\frac{-Rt}{L} })    .....(1)

Here I is current, V is source voltage, R is resistance, L is inductance and t is time.

The induced emf is determine by the equation :

V_{e}=L\frac{dI}{dt}

Differentiating equation (1) with respect to time and put in above equation.

V_{e}= L\times\frac{V}{R}\times\frac{R}{L}e^{\frac{-Rt}{L} }

V_{e}=Ve^{\frac{-Rt}{L} }

Substitute 6.05 volts for V, 0.655 Ω for R, 2.55 H for L and 1.43 s for t in the above equation.

V_{e}=6.05e^{\frac{-0.655\times1.43}{2.55} }

V_{e}=4.19\ V

5 0
3 years ago
Crystallization of solids​
Deffense [45]

Answer:

A separation technique to separate solids from a solution. Crystallization can be defined as the process through which the atoms/molecules of a substance arrange themselves in a well-defined three-dimensional lattice and consequently, minimize the overall energy of the system.

Explanation:

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