2 years ago

Please answer question #4

Chemistry

2 answers:

mixer [17]2 years ago

8 0

Answer:

force = 1500N
work done = 15000 joules

Explanation:

Force = mass × acceleration

Force = 500 × 3 = 1500 Newtons

work done = force × displacement

Work done = 1500 × 10 = 15000j = 15kj

( j = joule, kj = kilo joules )

trasher [3.6K]2 years ago

7 0

Answer:

F=500×3 = 1500 N

W = 1500×10 =15000 Nm

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BASED ON THE INFORMATION BELOW. CALCULATE THE MASS FOR ONE OF THESE ATOMS:

stepladder [879]

C = 12 g

O = 16 g

H = 1 g

<h3>Further explanation </h3>

Conservation of mass stated that

<em>In a closed system, the masses before and after the reaction are the same </em>

we can calculate the mass of each atom in the compound :

O in O₂ :

mass O₂ = 32

mass O = 32 : 2 = 16 g

H in H₂O

mass H₂O = 18

mass 2.H + mass O = 18

mass 2.H + 16 = 18

mass 2.H=2

mass H = 1 g

C in CH₄

mass CH₄ = 16

mass C + mass 4.H = 16

mass C + 4.1=16

mass C = 12 g

or we can use formula :

Mass of a single C :

$\tt =\dfrac{Ar~C}{MW~CO_2}\times mass~CO_2\\\\=\dfrac{12}{44}\times 44=12$

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HI. I have a lizared and dont know what to feed it. me and my sis were playing one day and found a small lizared. WHAT DO THEY E

castortr0y [4]

Answer:

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3 0

2 years ago

How to calculate the frequency of an ion

sergij07 [2.7K]

solution:

You need to find the frequency, and they have already given you the wavelength. And since you already know the speed of light, you can use formula (2) to answer this problem. Remember to convert the nano meters to meters because the speed of light is in meters. $(1 nm = 1.0 x 10^{-9} m)$