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Rudiy27
3 years ago
14

A machine is designed to lift an object with a weight of 12 newtons. if the input force for the machine is setat 4 newtons, what

is the mechanical advantage of the machine?

Physics
1 answer:
Alja [10]3 years ago
4 0
Hope this helps you!

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The hydrogen atom, changing from its first excited state to its lowest energy state, emits light with a wavelength of 122 nm. Th
tatyana61 [14]

Answer:

true b and c

Explanation:

n the electromechanical transitions of the atoms the relationship must be fulfilled

        \frac{x}{\lambda } = R (1 / nf - 1 / no²)

where for the final state nf = 1 giving in the case of hydrogen the Lymma series whose smallest wavelength is lam = 122 nm with nf = 1 and there are a series of spectral lines for each value of n of the final state

in the case of sodium so well it has a transition from an excited state to the kiss state (bad)

Now let's review the different proposals

a) False. The electronic potential for sodium is much lower than for hydrognosia

b) True

c) True

d) true

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3 years ago
Henry shot a down tennis ball and a cricket ball of the same size to window glass. Which one will have more impact? Justify.​
babunello [35]

Answer: The cricket ball bc of the material

Explanation:

5 0
2 years ago
What happens when a substance undergoes a physical change?
vodka [1.7K]
A: Some physical properties change, but the substance keeps its identity.
8 0
3 years ago
Read 2 more answers
NASA is concerned about the ability of a future lunar outpost to store the supplies necessary to support the astronauts. The sup
Finger [1]

Complete question :

NASA is concerned about the ability of a future lunar outpost to store the supplies necessary to support the astronauts. The supply storage area of the lunar outpost, where gravity is 1.63 m/s2, can only support 1 x 10^5 N. What is the maximum WEIGHT of supplies, as measured on EARTH, NASA should plan on sending to the lunar outpost

Answer:

601,220N

Explanation:

Given that:

Gravity at lunar outpost = 1.63m/s²

Acceleration due to gravity on earth = 9.8m/s²

Supported weight = 1 * 10^5 N

Maximum weight of supplies as measured on earth;

(Ratio of the gravities) * weight of supplies

(9.8m/s² / 1.63m/s²) * (1 * 10^5 N)

6.0122 * (1 * 10^5)

6.0122 * 10^5 N

= 601,220 N

3 0
3 years ago
An ideal gas Carnot cycle with air in a piston cylinder has a high temperature of 1200 K and a heat rejection at 400 K. During t
lana [24]

Answer:

The specific heat capacity is q_{L}=126.12kJ/kg

The efficiency of the temperature is n_{TH}=0.67

Explanation:

The p-v diagram illustration is in the attachment

T_{H} means high temperature

T_{L} means low temperature

The energy equation :

q_{h} = R* T_{h} in(V_{2}/V_{1})

   =0.287 * 1200 ln(3)

   =0.287*1318.33

   =378.36kJ/kg

The specific heat capacity:

q_{L}=q_{h}*(T_{L}/T_{H})

q_{L}=378.36 * (400/1200)

q_{L}=378.36 * 0.333

q_{L}=126.12kJ/kg

The efficiency of the temperature will be:

n_{TH}=1 - (T_{L}/T_{H})

n_{TH}=1-(400/1200)

n_{TH}=1-0.333

n_{TH}=0.67

4 0
3 years ago
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