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vodomira [7]
3 years ago
8

1. Which of the following best describes a neutral solid object that is charged by conduction?

Physics
1 answer:
trapecia [35]3 years ago
6 0

Answer:

C: The electrons in the neutral object transfer onto a positively charged object.

Explanation:

In conduction, when we charge one object with another, both of them will now have the same type of charge. Thus, in conduction, a positive object is used to charge a neutral object, then it means that both objects become charged positively charged. Electrons are positive charges.

Thus electrons in the neutral object are transferred onto a positively charged object and so option C is right.

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Consider the transition from the energy levels n = 3 to n = 6. what is the wavelength associated with this transition, in nm?
Anuta_ua [19.1K]
In quantum chemistry, when the energy of electron changes by moving from orbital to orbital, it emits or absorbs energy in the form of light. When this happens, you can measure its wavelength. Suppose an atom is heated. This excites the electron so it moves up higher to the next orbital. As a result, it would emit light. When its energy lowers and moves one orbital lower, it would absorb light. The equation to determine the wavelength is called the Rydberg formula.

1/wavelength = R(1/n1^2 - 1/n2^2), where
R is an empirical constant called Rydberg's constant equal to 1.9074 × 10^7 m^-1
n1 and n2 are orbitals of the atoms such that n2 is always greater than n1.

Substituting the values:

1/wavelength = 1.9074 × 10^7 (1/3^2 - 1/6^2)
wavelength = 1.09 × 10^-6 m or 1.09 micrometers
3 0
3 years ago
The instrument panel in a car usually has a display in units of kilometres or miles per hour. The displayed value tells you whic
Aleksandr [31]
The speedometer displays the speed, rather than the velocity of the car. Velocity is usually displayed by a GPS unit, and may be in the for of- 22 Mph
at a heading of 355 degrees. A speedometer actually uses the rpm of the wheels to calculate speed, which is why if you put your car's tires off the ground and rev the engine, the displayed speed increases even though you are not going anywhere.
6 0
3 years ago
What is de Broglie's hypothesis ? Make sure to be specific (qualitative and quantitative)
victus00 [196]

Answer and Explanation:

DE BROGLIE 'S HYPOTHESIS :

  • According to De broglie the matter have dual nature it can behave as particle as well as wave
  • According to this hypothesis all matter have wave like property and having wavelength.
  • The de broglie wavelength is given by \lambda =\frac{h}{P} here h is plank's constant and P is momentum
  • This hypothesis determines the probability of finding the object at a give point

3 0
3 years ago
What will happen to the period of a ball-on-a-spring if the ball is replaced by a smaller one with half the mass
Murrr4er [49]

When the ball on a spring is replaced by a smaller ball with half the mass :  The period decrease by 29%

<h3>Calculate the Period </h3>

We will apply the formula below to calculate period

T = 2\pi \sqrt{\frac{m}{k } }

 where :

T₁ / T₂ = \sqrt{\frac{m_{1} }{m_{2} } }    where m₂ = m₁ / 2

Therefore :

T₂ = \frac{T_{1} }{\sqrt{2} }   = 0.71 T

Hence we can conclude that the period will decrease by 29% ( i.e 100 - 71 ).

Learn more about Period calculation : brainly.com/question/10728818

4 0
2 years ago
How many kilohertz are<br> 750 megahertz?
e-lub [12.9K]

Answer:

750,000

Explanation:

I just looked it up on Google lol. You apparently multiple by 1000

Hope this helps :p

7 0
3 years ago
Read 2 more answers
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