3 years ago

Which term describes the amount of water vapor in the air?

Physics

2 answers:

Reika [66]3 years ago

6 0

Answer:

Humidity

Explanation: its 100% verified

loris [4]3 years ago

4 0

That would be humidity

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Which is not true of friction? A. Causes wear and tear of the surfaces B. Helps us to fall easily on roads C. Produces heat D. P

Ganezh [65]

Answer:

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2 years ago

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A 2.5 kg table can hold kg of weight. what is its structural efficiency?

Lorico [155]

It's (whatever number comes after 'hold') divided by 2.5 .

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3 years ago

The suspension system of a 2100 kg automobile "sags" 8.5 cm when the chassis is placed on it. Also, the oscillation amplitude de

Gennadij [26K]

Answer:

Part a)

$k = 6.06 \times 10^4 N/m$

Part b)

$b = 1795.4 kg/s$

Explanation:

Part a)

as the mass of the suspension system is given as

$m = 2100 kg$

also we have

$x = 8.5 cm$

so now for force balance we have

$mg = kx$

$(525)(9.81) = k(0.085)$

$k = 6.06 \times 10^4 N/m$

Part b)

Now we know that amplitude decreases by 63% in each cycle

so after one cycle the amplitude will become 37% of initial amplitude

so it is given as

$A = 0.37 A_o$

also we know

$A = A_o e^{-bt/2m}$

$0.37 A_o = A_o e^{-bt/2m}$

$\frac{bt}{2m} = 1$

$b = \frac{2m}{t}$

here t = time period of one oscillation

so it is

$t = 2\pi\sqrt{\frac{m}{k}}$

$t = 2\pi\sqrt{\frac{525}{6.06 \times 10^4}}$

$t = 0.58 s$

now damping constant is

$b = \frac{2(525)}{0.58}$

$b = 1795.4 kg/s$

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3 years ago

A 35 grams bullet travels with a velocity of magnitude 126 km/h. What is the bullet's linear momentum?

LekaFEV [45]

Answer:

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Explanation:

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3 years ago

In a recent year, wind machines in a country generated 183.1 billion kWh of electricity, enough to serve over 17 million househo

Neko [114]

Answer:

The right answer is "4.4%".

Explanation:

Given:

Generated electricity,

= 183.1 billion kWh

Total electricity production,

= 4098 billion kWh

Now,

The wind energy percentage will be:

= $\frac{183.1}{4098}\times 100$

= $0.0446\times 100$

= $4.4$ %

5 0

3 years ago