Answer:
A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.
Explanation:
Power refers to the amount of work done (or energy consumed) per unit of time. It is usually measured in watts (W), which is equal to 1 Joules per second (
)
So, by definition, to calculate the power consumed or supplied in a time interval the following expression is used:
where P is the power measured in Watts, W is the work measured in Joules, and t is the time measured in seconds.
In this case:
- P=100 Watt
- W= 10,000 J
- t= ?
Replacing:
Solving:
t=100 seconds
<u><em>
A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.</em></u>
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The molarity is count by dividing the mole of the solute within 1 liter of solvent. In this case, the KNO3 is 16.8g with 101.11 g/mol molar mass. Then we need to find the mol first. The calculation would be: 16.8g / (101.11g/mol)= 0.0166 mol.
Then the molarity would be: 0.0166mol/ 0.3l= 0.0498= 0.0553 M
Answer:
Crystalization is solidfying of atoms or molecules or things,,it can be speeded up depends on nature of something in terms of it's molecular force of attraction eg sand and loam soil also temperature and pressure above the sure to be crystalized
An igneus rock is formed where magma(molten rock) cool and solify(crystalized especially in volcanoes areas
Positively charged and the sodium ion would be a cation
Answer:
Calcium Nitrate is made up of three different elements and contains a total of nine atoms. This compound's formula is Ca(NO3)2. There is one calcium atom, two nitrogen atoms, and there are six oxygen atoms in calcium nitrate
