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nikklg [1K]
2 years ago
6

What mechanism of energy is transferred by mass motion of fluid from one region of space to another?​

Physics
1 answer:
lora16 [44]2 years ago
5 0
Convection, because it is the process of heat transfer from one location to the next by the movement of fluids. The moving fluid carries energy within it.
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A meter stick with a mass of 0.167 kg is pivoted about one end so it can rotate without friction about a horizontal axis. The me
SSSSS [86.1K]

Answer:

Part a)

change in potential energy is given as

\Delta U = 0.82 J

Part B)

angular speed of the rod is given as

\omega = 5.42 rad/s

Part c)

Linear speed of the end of the rod is given as

v = 5.42 m/s

Part d)

when a particle falls from rest to distance d = 1 m

v = 4.42 m/s

Explanation:

Part A)

As we know that the gravitational potential energy change is given as

\Delta U = mgH

\Delta U = 0.167(9.81)(0.5)

\Delta U = 0.82 J

Part B)

As we know that change in gravitational energy is equal to gain in kinetic energy

so we have

\Delta U = \frac{1}{2}I\omega^2

0.82 = \frac{1}{2}(\frac{mL^2}{3})\omega^2

\omega^2 = \frac{6 \times 0.82}{0.167 (1)^2}

\omega = 5.42 rad/s

Part c)

Linear speed of the end of the rod is given as

v = L\omega

v = 5.42 m/s

Part d)

when a particle falls from rest to distance d = 1 m

so we will have

v = \sqrt{2gL}

v = \sqrt{2(9.81)(1)}

v = 4.42 m/s

4 0
3 years ago
The oscillating electric field in a plane electromagnetic wave is given by <img src="https://tex.z-dn.net/?f=%7B50%5Csin%20%28%5
Scorpion4ik [409]

Here, we are given with:

{:\implies \quad \longrightarrow \begin{cases}\sf E_{0}= 50\: V/m\\ \sf \nu = 2\times 10^{7}Hz\end{cases}}

(a) So now, we can thus obtain

{:\implies \quad \sf \omega =2\pi \nu}

{:\implies \quad \sf \omega =2\pi (2\times 10^{7})}

{:\implies \quad \boxed{\bf{\omega = 4\pi \times 10^{7}\: s^{-1}}}}

Now, finding \lambda

{:\implies \quad \sf \lambda =\dfrac{c}{\omega}=\dfrac{3\times 10^{8}}{4\pi \times 10^{7}}}

{:\implies \quad \boxed{\bf{\lambda \approx 2.39\:m}}}

Now, finding k

{:\implies \quad \sf k=\dfrac{2\pi}{\lambda}=\dfrac{200\pi}{239}}

{:\implies \quad \boxed{\bf{k\approx 2.63\:m^{-1}}}}

Thus, expression for the electric field is:

{:\implies \quad \boxed{\bf{E=50\sin \bigg(4\pi \times 10^{7}t-\dfrac{263x}{100}\bigg)}}}

(b) Now, here

{:\implies \quad \sf B_{0}=\dfrac{E_{0}}{c}=\dfrac{50}{3\times 10^{8}}}

{:\implies \quad \boxed{\bf{B_{0}\approx 16.67×10^{-7}\:T}}}

Thus, expression for the magnetic field:

{:\implies \quad \boxed{\bf{B_{y}=16.67\times 10^{-7}\sin \bigg(4\pi \times 10^{7}t-\dfrac{263x}{100}\bigg)\:T}}}

(c) The electromagnetic wave propagates along Z-axis

4 0
2 years ago
Crime is defined as a violation of<br> A. Safety<br> B. Morals<br> C. Law<br> D. Community
Ann [662]
A crime is a violation of the law
4 0
2 years ago
Read 2 more answers
What is the difference between conductor and insulator
ladessa [460]

Answer:

There are three types of material as per the condition of charge flow

1) Conductor

2) Insulator

3) Semiconductor

1) Conductors

As we know that conductors are those which offer very small resistance to the flow of charge

Resistivity of the conductors are very small

2) Insulators

These type of materials offer large resistance to the flow of charges and it will not pass the current through it

So resistivity of the insulators are large as compared to conductors

5 0
3 years ago
A gas was compressed to 30.0 mL at 1.5 atm from 65<br>mL. What was the original pressure?​
astra-53 [7]
A gas as 30.0 Ml because pile of 1.4 add 1 that equals. To 1.5 and remove 10 so thebpresssure is 1399.93
4 0
3 years ago
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