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Travka [436]
3 years ago
13

A weight lifter does 586 J of work on a weight that he lifts in 3.5 seconds. What is the power with which he lifts the weight?

Physics
1 answer:
Neko [114]3 years ago
7 0

Answer:

Explanation:

The quantity of energy transferred by a force when it is applied to a body and causes that body to move in the direction of the force work.

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Voltage drops across a source of emf.<br><br> A. True <br> B. False
iren2701 [21]
A.true hope it help :)
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4 years ago
Which of these results from destructive interference?
Mazyrski [523]
Based on the options given, the answer is two waves subtract from each other. Destructive interference happens when two waves meet each other however with different frequencies cancel each other out. 

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3 years ago
What were two reasons that the Krystal Beslanowitch case was finally closed?
lesantik [10]

Answer:

1. Police Weren't Able To Find Any Real Leads

2. They Didn't Find Any Clues To The Killer Until 18 Years Later

Explanation:

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7 0
2 years ago
The flow of electric current through a gas without any external influence (ionizer) is called
maksim [4K]

Answer:

self-maintained discharge

Explanation:

5 0
3 years ago
Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), and its temperature
Oxana [17]

Answer:

Temperature of neon gas = 875 K

Explanation:

Using Ideal gas equation as:

PV=nRT

Where,

P is the pressure of the gas

V is the volume of the gas

n is the number of moles

R is the gas constant

T is the temperature

Also,

moles=\frac{Mass(m)}{Molar\ mass (M)}

Density (\rho)=\frac{Mass(m)}{Volume(V)}

The ideal gas equation can be written as:

P=\frac{Mass(m)}{Molar\ mass (M)\times Volume(V)}\times RT

Thus,

P=\frac{Density (\rho)}{Molar\ mass (M)}\times RT

P\times M=Density (\rho)\times RT

As Density and Pressure is constant , We only consider molar mass and Temperature which are directly proportional according to the equation above as:

\frac {M_1}{T_1}=\frac {M_2}{T_2}

Data given for He:

Temperature (T₁) = 175 K

Molar mass of He (M₁)= 4 g/mol

For Ne:

Temperature (T₂)= ?

Molar mass of He (M₂)= 20 g/mol

Applying in the equation,

T_2=\frac {M_2}{T_1} \times {M_1}

T_2=\frac {20 g{mol}^{-1}}{175 K} \times {4 g{mol}^{-1}}

T_2=875 K atm

<u>Temperature of neon gas = 875 K</u>

4 0
3 years ago
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