Answer:
Y = 2.286 *) N/m
V = 436.46 m/s
Explanation:
Length, L= 1.2 m
Radius, R=3.8 mm=3.8*
mass, m = 22 kg
Extension, ΔL = 2.5 mm
(a)
Forces P= mg =22*9.8 =215.6 N
Stress = P/A
= 215.6/[((r)²]
Stress = ( 215.6 ) / [(3.14* (3.18*)²]
Stress= 4.755 * N/m²
Strain in rod = ΔL/L = (2.5 *)/(1.2)
=(2.08 *)
Now, Toung midulus =Y= Stress/ Strain
=(4.755 * )/(2.08 *)
=(2.286 *) N/m
(b)
Density of metal = 12 g/
= 12*10³ kg/m
Speed of sound in the metal=
v=
V=436.46 m/s
Answer:
corona, chromosphere, radiative zone, convection zone,core
Answer:
C and F
Explanation:
A break in one wire causes all current to stop.
If one bulb goes out, the others go out.
Since the acorn is thrown horizontally, the initial vertical velocity is 0 m/s. Let’s use the following equation to determine the time to fall 10 meters.
<span>d = vi * t + ½ * a * t^2, vi = 0, a = 9.8 </span>
<span>10 = 4.9 * t^2 </span>
<span>t = √(10/4.9) </span>
<span>This is approximately 1.43 seconds. Let’s use the following equation to determine the horizontal distance it moves. </span>
<span>d = v * t = 1.1 * √(10/4.9) </span>
<span>This is approximately 1.57 meters. To determine the horizontal distance between the acorn and squirrel, subtract this distance from 5 meters. </span>
<span>d = 5 – 1.1 * √(10/4.9) </span>
<span>This is approximately 3.83 meters. To catch the acorn, the squirrel must move this distance in the same time as the acorn falls 10 meters. </span>
<span>Average velocity = ([5 – 1.1 * √(10/4.9] ÷ √(10/4.9) = 2.4 m/s </span>
<span>I hope this helps you to understand how to solve this type of problem.</span>
Responder:
20.3 ° C
Explicación:
<u>Según la ley de Charles</u>: <em>cuando la presión sobre una muestra de gas seco se mantiene constante, la temperatura y el volumen estarán en proporción directa.
</em>
Paso uno:
datos dados
Temperatura T1 = 20 ° C
Temperatura T2 =?
Volumen V1 = 12.2 cm ^ 3
Volumen V2 = 12.4 cm ^ 3
Aplicar la relación temperatura y volumen
sustituyendo tenemos
Cruz multiplicar tenemos
Temperatura delle braci 20.3°C