1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alekssr [168]
3 years ago
13

Convection requires______to transfer heat.

Physics
1 answer:
mylen [45]3 years ago
6 0
The movement of fluid
You might be interested in
Attempting to move a large rock useing a long lever will the work you do on the lever be greater than the same as or less than t
jolli1 [7]
The work that you do on the lever will be the same as the work done by the lever on the rock. This aligns with the Law of the Conservation of Energy which states that energy can not be created nor destroyed. Since work can be calculated as force applied over a distance, you will apply a smaller force but your distance will be longer. The lever will apply a greater force over a shorter distance in proportion to yours. Therefore, the same amount of work is done on both sides of the lever. 
6 0
3 years ago
Que fuerza se obtendrá en el émbolo mayor de una prensa hidraúlica cuya área es de 167 cm2, cuando el émbolo menor de área igual
stiv31 [10]

Responder:

<h2>5.368N, </h2>

Explicación:

Según el principio pascal, establece que la presión aplicada en un punto sobre un líquido en un recipiente cerrado es igual a igual a la presión en cualquier otro punto del líquido.

Matemáticamente Presión ejercida por el pistón más pequeño = Presión ejercida por el pistón más grande.

La presión es la relación entre la fuerza y ​​su área de sección transversal.

P = Fuerza / Área de sección transversal

Sea P1 la presión sobre el pistón más pequeño y P2 la presión ejercida por el pistón más grande.

Como P1 = P2 entonces;

F1 / A1 = F2 / A2

Dado F1 = 450N, A1 = 14 cm², A2 = 167 cm² y F2 =?

Sustituyendo el valor conocido en la fórmula para obtener el requerido, tenemos;

\frac{450}{14} = \frac{F2}{167}\\  \\Cross\ multiplying\\\\14*F_2 = 450*167\\\\14F_2 = 75,150\\\\F_2 = \frac{75,150}{14} \\\\F_2 = 5,367.9N

F_2 \approx 5, 368N

Por lo tanto, la fuerza que se obtendrá en el pistón más grande de una prensa hidráulica cuya área es de 167 cm² es aproximadamente 5,368N,

4 0
4 years ago
What does properties mean
OleMash [197]

Answer:

a thing or things belonging to someone; possessions collectively.

Explanation:

7 0
3 years ago
A CD has an initial angular speed of 600 rpm. If the disc stop rotating after 4 seconds, what is its angular acceleration?
Elza [17]

Answer:

-15.708 rad/s^2

Explanation:

First, let us covert everything to the same unit. For me, I find dealing with radians/sec more intuitive, but you can solve it in rpm. We are told that the initial angular speed is 600 rpm and after 4 seconds it stops. Let's convert 600 rpm into radians/sec. To do this, multiply by 2*pi/60. This gives 62.83 rad/s. Now let's review our info:

\omega_i = 600rpm = 62.83rad/s\\\omega_f = 0\\t = 4s\\\alpha = ?

Now we look up angular kinematics equations and the equation that has these parameters is

\omega=\omega_0+\alpha t

Substitute our values in:

\omega=\omega_0+\alpha t\\0=62.83\frac{rad}{s}+\alpha *(4s)\\\alpha = -15.708\frac{rad}{s^2}

5 0
3 years ago
The middle one please need done in 45min
netineya [11]

Answer:

600 J

Explanation:

it's obviously btw so yeahhhh

5 0
3 years ago
Other questions:
  • What happens once a scientific theory is accepted
    14·1 answer
  • A pressure cooker cooks a lot faster than an ordinary pan by maintaining
    9·1 answer
  • A small loop of area A = 5.5 mm2 is inside a long solenoid that has n = 919 turns/cm and carries a sinusoidally varying current
    9·1 answer
  • How does the force required to lift an object in water compare to the force needed to lift the same object on land?it is the exa
    15·1 answer
  • The 100-kg homogeneous cylindrical disk is at rest when the force is applied to a cord wrapped around it, causing the disk to ro
    13·1 answer
  • A string is vibrating between two posts as shown above. Students are to determine the speed of the wave within this string. They
    12·1 answer
  • The figure below is a graph of net force vs. the acceleration of an object. Use a graph to determine the mass of the object.
    9·1 answer
  • Hi, I don't really know I just guessed.
    10·1 answer
  • I need help algebra in physics
    6·1 answer
  • Yay maybe okay so yeah
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!