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Leto [7]
4 years ago
13

It is easy..plz help!

Physics
1 answer:
Aleks04 [339]4 years ago
3 0
No because point A has to be higher for more KE to push the object and make the look
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Calculate: a student lifts an apple to a height of 1 m. The apple weighs 1 N. How much work does the student do on the apple? Ty
Elina [12.6K]

Answer:

1J

Explanation:

Work done = force × distance

1 × 1 = 1

Work done = 1J

J = Joules

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3 years ago
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The state of California experiences periodic occurrences of higher than average precipitation. This causes flooding due to heavy rainfall.

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A monatomic ideal gas initially fills a container of volume V = 0.25 m3 at an initial pressure of P = 250 kPa and temperature T
Murrr4er [49]

Answer:

number of moles = 27.34 moles

the temperature of gas after it undergoes the isobaric expansion = 605 K

Explanation:

Given that:

V = 0.25 m³

P = 250 kPa

T = 275 K

V₂ = 0.55 m³

P₂ = 760 kPa

a)

Using ideal gas equation ; PV = nRT

n = \frac{PV}{RT}\\\\n =  \frac{250*10^3*0.25}{8.314*275}\\\\n = \frac{62500}{2286.35}\\\\n = 27.34 \ moles

b) To calculate the temperature of gas after it undergoes the isobaric expansion; we have:

  1. \frac{V_1}{T_1}= \frac{V_2}{T_2}\\\\\frac{0.25}{275}= \frac{0.55}{T_2}\\\\T_2=\frac{0.55*275}{0.25}\\\\T_2 = 605 K

4 0
4 years ago
A cube of copper 2.00cm on a side is suspended by a string. The cube is heated with a burner from 20.0°C to 90.0°C. The air surr
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Answer:

a. 2.856 x 10^-6 m³

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c. 971.88 J

d. 971.592 J

Explanation:

d) The change in internal energy of the cube.

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B(beta)= 5.1 × 10^-3 (C)^-1

Cp = 390J/Kg.K

p (Rho) = 8.90 × 10³Kg/m³

Detailed solution is attached below

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3 years ago
1. how does a waveform change when you increase the frequency?
antiseptic1488 [7]

Answer:

1.Wave frequency is the number of waves that pass a fixed point in a given amount of time. The SI unit for wave frequency is the hertz (Hz), where 1 hertz equals 1 wave passing a fixed point in 1 second. A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

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2 years ago
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