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patriot [66]
3 years ago
11

If Mrs. Reichelt throws a chromebook, because it won't login correctly, with a force of 8N, and the chromebook accelerates at 5m

/s2, what is the mass of the chromebook
Physics
1 answer:
suter [353]3 years ago
7 0

Answer:

1.6 kg

Step-by-step Solution:

Since Force = mass × acceleration we have:

F = 8N

a= 5 m/s^2

m = ?

By plugging the values above into F=ma we obtain:

F=ma\\\\8=m(5)\\\\\frac{8}{5}=\frac{m(5)}{5}\\\\m=\frac{8}{5}=1.6

Therefore, the Chromebook has a mass of 1.6 kilograms.



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vladimir2022 [97]

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A refrigerator had a mass of 73 kg. What is the weight of the refrigerator in newtons
Sophie [7]

Answer:

715.4 N

Explanation:

W = mg

= 73 kg*9.8m/s²

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One horsepower is a unit of power equal to 746 W. How much energy can a 150-horsepower engine transform in 10.0 s?
Lelu [443]

Answer:

E = 1119000\ joules

Explanation:

Given:

1\ Hp = 746\ watt

time (t = 10.0 sec)

power = 150 Hp

We need to find the energy transformed by a 150 Hp engine in 10 s.

Solution:

First we convert 150 Hp in watt.

1\ Hp = 746\ watt

150\ Hp = 150\times 746\ watt

150\ Hp = 111900\ watt

So, power (p = 111900 watt)

We know that, if we multiply power by time, we get energy transform by engine.

P = \frac{E}{t}

E = P\times t\ joule  -----------(1)

Where:

P ⇒ power.

E ⇒ Energy.

t ⇒ time.

Substitute p = 111900 watt and t = 10 s in equation 1.

E = 111900\times 10

E = 1119000\ joules

Therefore, a 150 Hp engine could transform 1,119,000 joules energy  in 10 s.

4 0
3 years ago
Which compound uses the oxidation numbers to write the chemical formula?
pantera1 [17]

Inorganic chemical compounds

Explanation:

Inorganic chemical compounds employ the use of oxidation numbers of atoms to write their chemical formula.

  • The oxidation number is the formal charge assigned assigned to an atom present in a molecule or formula unit or ion based on some rules.
  • Knowledge of this number is used in writing the formulae of inorganic compounds.
  • These compounds forms by the exchange of certain small whole numbers by atoms or groups of atoms.
  • The combining power usually correspond to the number of electrons usually lost or gained or shared by atoms of elements during chemical combinations or the number of positive or negative charges carried by ions.

For example:

                                                            A                            B

combining power(Valency):               X                            Y

Exchange of valencies                       Y                            X

                 Molecular formula of compound    A_{y}Bₓ  

Learn more:

Compounds brainly.com/question/5961886

#learnwithbrainly

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3 years ago
When two or more forces act together on an object what do they combine to form
Daniel [21]
Without knowing anything about their magnitudes or directions, the only thing you can always say about thier combination is that it's the "net force" on the object.
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