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3 years ago

Does the surrounding air become warm or cool when vapour phase of h2o condenses?explain.

1 answer:

8 0

When the vapor phase of h20 condenses, the surrounding air becomes a little cold since it liberates some amount of heat energy in order to change its phase from the gaseous state (vapor) to the liquid state (droplets of water).

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Hydraulic systems utilize Pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called

Paul [167]

Answer:

F1= 122.93 N

Explanation:

Pascal´s Principle

Pascal´s Principle can be applied in the hydraulic press:

If we apply a small force (F1) on a small area piston A1, then, a pressure (P) is generated that is transmitted equally to all the particles of the liquid until it reaches a larger area piston and therefore a force (F2) can be exerted that is proportional to the area (A2) of the piston:

P=F/A

P1=P2

$\frac{F_{1} }{A_{1}} = \frac{F_{2} }{A_{2}}$ Formula (1)

Data

D1 = 1.85 cm : primary cylinder piston diameter

D2 = 24.5 cm : secondary cylinder piston diameter

m = 2200-kg : car mass

Piston area calculation

$A_{1} = \frac{\pi *(D_{1})^{2} }{4}$

$A_{1} = \frac{\pi *(1.85)^{2} }{4}$

A1= 2.688 cm²

$A_{2} = \frac{\pi *(D_{2})^{2} }{4}$

$A_{2} = \frac{\pi *(24.5)^{2} }{4}$

A2 = 471.435 cm²

Calculating of the weight of the car (W)

W = m*g = 2200-kg * 9.8 m/s² = 21560 N

Calculation of the force in Newtons to be exerted on the primary cylinder piston

Data:

A1= 2.688cm²

A2= 471.435 cm²

F2 = W= 21560 N

We replace data in the formula (1)

$\frac{F_{1} }{A_{1}} = \frac{F_{2} }{A_{2}}$

$F_{1} =\frac{F_{2}*A_{1} }{A_{2} }$

$F_{1} =\frac{21560N*2.688 cm^{2} }{471.435 cm^{2} }$

F1= 122.93 N

3 0

3 years ago

How to be good at rocket league

kodGreya [7K]

Answer:

go to like the play ground area, and start off by practicing kicking the ball and getting the buttons on the controller down. watch some yt videos too, they will help out!!

Explanation:

hope this helped :))

6 0

2 years ago

Read 2 more answers

An object is hung on the end of a vertical spring and is released from rest with the spring 3 unstressed. If the object falls 3.

den301095 [7]

Answer:

The period of the resulting oscillatory motion is 0.20 s.

Explanation:

Given that,

Spring constant $k= 3\ N/m^2$

We need to calculate the time period

The object is at rest and has no elastic potential but it does has gravitational potential.

If the object falls then the the gravitational potential change in to the elastic potential.

So,

$mgh=\dfrac{1}{2}kh^2$

$m=\dfrac{1}{2}\times\dfrac{kh}{g}$

Where,h = distance

k = spring constant

Put the value into the formula

$m=\dfrac{1\times3\times3.42\times10^{-2}}{2\times9.8}$

$m=5.235\times10^{-3}\ kg$

Using formula of time period

$T=\dfrac{1}{2\pi}\times\sqrt{\dfrac{m}{k}}$

Put the value into the formula

$T=\dfrac{1}{2\pi}\times\sqrt{\dfrac{5.235\times10^{-2}}{3}}$

$T=0.20\ sec$

Hence, The period of the resulting oscillatory motion is 0.20 s.

8 0

2 years ago

20 POINTS WILL BE MARK BRAINLIEST<br><br> ATTACHED BELOW GAS LAW WORKSHEET

german

Explanation:

I will do two of each as examples.

Boyle's law says that at constant temperature, the product of the initial pressure and volume equals the product of the final pressure and volume.

1. P₁ V₁ = P₂ V₂

(1.5 atm) (10.0 L) = (0.75 atm) V

V = 20.0 L

2. P₁ V₁ = P₂ V₂

(100.0 kPa) (500.0 mL) = P (1,000.0 mL)

P = 50.0 kPa

Charles' law says that at constant pressure, the quotient of the initial volume and temperature equals the quotient of the final volume and temperature.

6. V₁ / T₁ = V₂ / T₂

(10.0 L) / (1500 K) = V / (750 K)

V = 5.0 L

7. V₁ / T₁ = V₂ / T₂

(500.0 mL) / (100 K) = (1000.0 mL) / T

T = 200 K

7 0

2 years ago

How can a scientist assess whether a pure niobium sample is responsible for contaminating the lab with radioactivity

d1i1m1o1n [39]

A scientist can assess whether a pure niobium sample is responsible for contaminating the lab with radioactivity by testing the sample. By testing the niobium sample, a scientist can determine whether it has any other element.

6 0

3 years ago

Read 2 more answers