All categories

4 years ago

Which two factors does the power if a machine depend on

Chemistry

2 answers:

Furkat [3]4 years ago

8 0

The definition of mechanical power is

Power = (work done) / (time to do the work).

From that definition, it looks pretty much like the power of a machine

depends on work and time.

ioda4 years ago

6 0

Answer:

c. work and time

Explanation:

c is right on plato

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How is the molecule of substance formed

rosijanka [135]

Answer:

When atoms approach one another closely, the electron clouds interact with each other and with the nuclei. If this interaction is such that the total energy of the system is lowered, then the atoms bond together to form a molecule.

Explanation:

8 0

3 years ago

Can someone please help me out with my homework. I don't understand this at all and it's due tomorrow 1st period. Thx

IrinaVladis [17]

2.

move constantly

3.
solid - definite shape and volume

liquid - only definite volume

gas - none.

4.

The particles of gases have large interparticular space between them and they move constantly and sometimes these particles move away leading to change in volume but in case of solids the particles are packed tightly with low interparticular spaces and high interparticular force.

5.

shown in image above.

6 0

3 years ago

Also what happens if you decrease NOCL

Paladinen [302]

Answer:

el que paso del one jhaulio

Explanation:

6 0

3 years ago

(3 points)

Paul [167]

An increased number of rod cells

5 0

4 years ago

Read 2 more answers

The addition of 0.242 L of 1.92 M KCl to a solution containing Ag+ and Pb2+ ions is just enough to precipitate all of the ions a

kolezko [41]

Answer:

Mass PbCl₂ = 50.24g

Mass AgCl = 14.84g

Explanation:

The addition of Cl⁻ ions from the KCl solution results in the precipitation of AgCl and PbCl₂ as follows:

Ag⁺ + Cl⁻ → AgCl(s)

Pb²⁺ + 2Cl⁻ → PbCl₂(s)

If we define X as mass of PbCl₂, moles of Cl⁻ from PbCl₂ are:

Xg × (1mol PbCl₂/ 278.1g) × (2moles Cl⁻ / 1 mole PbCl₂) = <em>0.00719X moles of Cl⁻ from PbCl₂</em>

<em />

And mass of AgCl will be 65.08g-X. Moles of Cl⁻ from AgCl is:

(65.08g-Xg) × (1mol AgCl/ 143.32g) × (1mole Cl⁻ / 1 mole AgCl) = <em>0.45409 - 0.00698X moles of Cl⁻ from AgCl</em>

<em />

Moles of Cl⁻ that were added in the KCl solution are:

0.242L × (1.92mol KCl / L) × (1mole Cl⁻ / 1 mole KCl) = 0.46464 moles of Cl⁻ added.

<em />

Moles Cl⁻(AgCl) + Moles Cl⁻(PbCl₂) = Moles Cl⁻(added)

0.45409 - 0.00698X moles + (0.00719X moles) = 0.46464 moles

0.45409 + 0.00021X = 0.46464

0.00021X = 0.01055

X = 0.01055 / 0.00021

X = 50.24g

As X = Mass PbCl₂

And mass of AgCl = 65.08 - 50.24

6 0

4 years ago