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3 years ago

A truck driver is

Physics

2 answers:

Gekata [30.6K]3 years ago

7 0

Answer:

Because he was not driving his truck! He’s walking on the sidewalk.

Explanation:

Mazyrski [523]3 years ago

6 0

Because the truck driver is walking

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Prove that young modulus of elasticity and pressure have the same dimensions

ivann1987 [24]

Answer:

The dimensions of Young's Modulus, as well as material stress, are the same as pressure because stress is like pressure in a solid, except with some key differences that warrant the use of different terminology.

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3 years ago

A 5 m3 tank containing 5kg of an unknown ideal gas at 500 kPa is connected through a valve to another tank containing 10 kg of t

Ivan

Answer:

a) $V_{T} = 9\,m^{2}$ , b) $m_{T} = 15\,kg$ , c) $P_{T} = 416.667\,kPa$

Explanation:

a) The equation of state for ideal gas is:

$P \cdot V = \frac{m}{M}\cdot R_{u}\cdot T$

Given the existence of an isothermal process, the following relation is derived:

$\frac{P_{1}\cdot V_{1}}{m_{1}} = \frac{P_{2}\cdot V_{2}}{m_{2}}$

The volume of the other tank is:

$V_{2} = \left(\frac{m_{2}}{m_{1}} \right)\cdot \left(\frac{P_{1}}{P_{2}}\right)\cdot V_{1}$

$V_{2} = \left(\frac{10\,kg}{5\,kg} \right)\cdot \left(\frac{200\,kPa}{500\,kPa}\right)\cdot (5\,m^{3})$

$V_{2} = 4\,m^{3}$

The total volume is:

$V_{T} = V_{1} + V_{2}$

$V_{T} = 5\,m^{3} + 4\,m^{3}$

$V_{T} = 9\,m^{2}$

b) The total mass is:

$m_{T} = m_{1} + m_{2}$

$m_{T} = 5\,kg + 10\,kg$

$m_{T} = 15\,kg$

c) The pressure of the gas in the two tanks is:

$P_{2} = \left(\frac{m_{2}}{m_{1}} \right)\cdot \left(\frac{V_{1}}{V_{2}}\right)\cdot P_{1}$

$P_{T} = \left(\frac{15\,kg}{5\,kg}\right)\cdot \left(\frac{5\,m^{2}}{9\,m^{2}} \right)\cdot (500\,kPa)$

$P_{T} = 416.667\,kPa$

3 0

4 years ago

Which type of electromagnetic radiation is most likely to cause sunburn?

MrMuchimi

-The Answer is A Ultraviolet-

Explanation: UVA (Ultraviolet) rays can cause serious damage to your skin.

3 0

3 years ago

Read 2 more answers

The weld current between pulses is know as ______

Brut [27]

Answer:

the pulse arc system

Explanation:

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3 years ago

If a wave travels 16 meters in 2 seconds, what is its wave speed?

GarryVolchara [31]

Wave speed is 8 m/s

Explanation:

Wave speed or speed of the wave is given by the formula

v = distance traveled by the wave/time

Here, distance traveled = 16 m and time = 2 s

⇒ Wave speed = 16/2 = 8 m/s

7 0

3 years ago