The current in a 100-w bulb connected to a 120-v source is

PLEASE HELP!!!!!!!!!!!

Alexxandr [17]

I am 100% sure its A.

5 0

3 years ago

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However asked this gets one hundreed points

ollegr [7]

Answer:

Omg tysm you are too kind

Explanation:

8 0

3 years ago

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When an object such as a plastic comb is charged by rubbing it with a cloth, the net charge is typically a few microcoulombs. If

masya89 [10]

The concept required to solve this problem is quantization of charge.

First the number of electrons will be calculated and then the total mass of the charge.

With these data it will be possible to calculate the percentage of load in the mass.

$Q= ne$

Here Q is the charge, n is the number of electrons and e is the charge on the electron

$n = \frac{Q}{e}$

Replacing,

$n = \frac{4*10^{-6}C}{1.6*10^{-19}}$

$n = 2.5 * 10^{13}77$

According to the quantization of charge the charge is defined as product of the number of electron and the charge on the electron

The total mass of the charge is

$m= nm_e$

Here,

m = Mass of the charge

n = Number of electrons

$m_e$ = Mass of the electron

$\text{Percentage change} = \frac{nm_e}{M}*100$

Replacing we have

$\text{Percentage change} = \frac{(2.5*10^13)(9.1*10^{-28})}{33}*100$

$\text{Percentage change} = 6.9*10^{-14} \%$

6 0

4 years ago

Which contribute to both chemical and mechanical weathering? Check all that apply.

larisa86 [58]

organisms and water

Explanation:

Organisms and water contribute to both chemical and mechanical weathering . A form of weathering known as biological weathering is a derivative of both chemical and physical weathering.

Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
Organisms are pivotal to both physical disintegration of rocks through their activities.
Through their metabolic activities, they also releases chemicals that are used for chemical weathering of rocks.

Water is essential for weathering. It is used in alternate freezing and thawing, a mechanical weathering process to break down rocks.

It is used in rock hydrolysis for chemical weathering.

Learn more:

Contact metamorphism brainly.com/question/1970623

#learnwithBrainly

7 0

4 years ago

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A lever has a mechanical advantage of 5.4. If you apply a force of 500 N to the lever, how much force does the lever apply to th

Yanka [14]

Force applied by the lever to the object=2700 N

Explanation:

Mechanical advantage= $\frac{LOAD}{EFFORT}$

mechanical advantage= 5.4

effort force= 500 N

we need the load force

5.4= load/500

load=2700 N

Thus the force applied by the lever to the object=2700 N

6 0

3 years ago