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frozen [14]
3 years ago
12

If the absolute pressure of a gas is 550.280 kPa, its gage pressure is

Physics
2 answers:
Rom4ik [11]3 years ago
8 0
The answer is D. 448.955 kPa
aivan3 [116]3 years ago
4 0

By definition we have to:

Pabs = Patm + Pg

Where,

Pabs: absolute pressure

Patm: atmospheric pressure

Pg: gage pressure

The atmospheric pressure is constant and its value is:

Patm = 101.325 kPa

Then, by clearing gage pressure we have:

Pg = Pabs - Patm

Substituting values we have:

Pg = 550.280 - 101.325\\Pg = 448.955 KPa

Answer:

If the absolute pressure of a gas is 550.280 kPa, its gage pressure is:

D. 448.955 kPa

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What is the frequency of blue light that has a wavelength of 473nm?
ankoles [38]

Answer:

6.34 x 19^14 Hz

Explanation:

Wavelength, λ = 473 nm = 473 x 10^-9 m

the relation between the frequency and the wavelength is given by

v = f x λ

where, v is the velocity of light in vacuum which is equal to 3 x 10^8 m/s.

So, f = v / λ

f = ( 3 x 10^8) / ( 473 x 10^-9)

f = 6.34 x 19^14 Hz

6 0
4 years ago
According to the __________perspective, people who suffer from PTSD are classically conditioned.
patriot [66]

According to the pavlovian perspective, people who suffer from PTSD are classically conditioned.

<h3>What is PSTD?</h3>

This is referred to as post traumatic stress disorder which is a mental disorder from a terrifying incident.

The pavlovian perspective however view this disorder as being a type of classical conditioned one.

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5 0
2 years ago
A car is traveling at 104 km/h when the driver sees an accident 50 m ahead and slams on the brakes. What minimum constant decele
Solnce55 [7]

Answer:

–8.35 m/s²

Explanation:

We'll begin by converting 104 km/h to m/s. This can be obtained as follow:

3.6 Km/h = 1 m/s

Therefore,

104 km/h = 104 km/h × 1 m/s / 3.6 Km/h

104 km/h = 28.89 m/s

Thus, 104 km/h is equivalent to 28.89 m/s.

Finally, we shall determine the deceleration of the car. This can be obtained as follow:

Initial velocity (u) = 28.89 m/s

Final velocity (v) = 0 m/s

Distance (s) = 50 m

Deceleration (a) =?

v² = u² + 2as

0² = 28.89² + (2 × a × 50)

0 = 834.6321 + 100a

Collect like terms

0 – 834.6321 = 100a

–834.6321 = 100a

Divide both side by 100

a = –834.6321 / 100

a = –8.35 m/s²

Thus, the deceleration of the car is –8.35 m/s².

5 0
3 years ago
Calcula la energia potencial de Tamara que tiene una mas de 50kg y se encuentra, 80 metros arriba en el borde de un edificio
Ilya [14]

Responder:

39200 J

Explicación:

Dado:

Masa de Tamara (m) = 50 kg

Altura a la que se encuentra Tamara (h) = 80 m

Aceleración debido a la gravedad (g) = 9.8 m / s²

La energía potencial de un objeto de masa 'm' ubicada a una altura 'h' sobre el suelo se da como:

U=mgh

Ahora, conecte los valores dados y resuelva la energía potencial. Esto da,

U=50\times 9.8\times 80\\\\U=39200\ J

Por lo tanto, la energía potencial de Tamara ubicada a una altura de 80 m es 39200 J.

8 0
4 years ago
Một thang máy chuyển động thẳng đứng hướng xuống dưới chậm dần đều với gia tốc a= -4m/s2. Trần thang máy treo một vật nhỏ bằng m
Free_Kalibri [48]

Answer:

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7 0
3 years ago
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