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Fiesta28 [93]
2 years ago
10

A machine produces 4,000 J of work in 5 seconds. how much power does the machine produce.

Physics
1 answer:
ad-work [718]2 years ago
5 0

Explanation:

Power is defined as the work done per unit time or

P = \dfrac{\Delta W}{\Delta t}

\;\;\;\;= \dfrac{4000\:\text{J}}{5\:\text{s}} = 800\:\text{Watts}

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Convert <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%280.779mg%29%28min%29%7D%7BL%7D" id="TexFormula1" title="\frac{(0.779mg)(mi
Orlov [11]

The number converted is 0.0467 \frac{(kg)(s)}{m^3}

Explanation:

In order to convert from the original units to the final units, we have to keep in mind the following conversion factors:

1 kg = 1000 g = 10^6 mg

1 min = 60 s

1 m^3 = 1000 L

The original unit that we have is

\frac{mg\cdot min}{L}

Therefore, it can be rewritten as:

=\frac{mg \frac{1}{10^6 mg/kg}\cdot min\cdot  60 s/min}{L\frac{1}{1000L/m^3}}=0.06 \frac{(kg)(s)}{m^3}

Therefore, since the initial number was 0.779, the final value is

0.779\cdot 0.06 \frac{(kg)(s)}{m^3}=0.0467 \frac{(kg)(s)}{m^3}

#LearnwithBrainly

5 0
3 years ago
Why do atoms do group 1 element lose electrons to form cations
Mrac [35]

Answer:

when a element of 1 group take part in reaction, its atom looses outer electron and form positively charged ions called Cation.

Explanation:

8 0
3 years ago
Acceleration is measured in_________<br><br><br> m<br><br><br> g<br><br><br> m/s<br><br><br> m/s2
Nana76 [90]
Acceleration is measured in m/s².

Answer: m/s²
4 0
3 years ago
The energy is water but i wanf to know how does it affect the enviorment?
Airida [17]
It affects the environment because more animals and plants will grow. Down side is if there are bugs or insects that need water to live, if there's more water than more bugs. If bugs also feed on plants there could be an over population. 
7 0
3 years ago
Order the speed of sound through these materials from the slowest to the fastest.
xz_007 [3.2K]

Answer:

1 ) Warm air

2) Cold air

3) Cold water

4) Steel

5) Hot molten

Explanation:

In order to solve this problem, we have to warn that the sound propagates more easily in denser media, in this way we have to identify the densities of the different materials.

Density cold air = 1.2 [kg/m^3]

Density warm air = 1.01 [kg/m^3]

Density cold water = 1000 [kg/m^3]

Density steel = 7500 [kg/m^3]

Density hot molten = 14100 [kg/m^3]

Therefore in order from the slowest to the fastest:

1 ) Warm air

2) Cold air

3) Cold water

4) Steel

5) Hot molten

8 0
3 years ago
Read 2 more answers
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