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egoroff_w [7]
3 years ago
10

Which scenario do robes an interaction between two different spheres

Physics
1 answer:
lbvjy [14]3 years ago
3 0
Terms such as separate spheres and domestic–public dichotomy refer to a social phenomenon, ... In Politics, Aristotle described two separate spheres in Greek society, the home
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When an aluminum bar is connected between a hot reservoir at 720 K and a cold reservoir at 358 K, 3.00 kJ of energy is transferr
disa [49]

Answer:

a.  -4.166 J/K

b. 8.37 J/K

c. 4.21 J/K

d. entropy always increases.

Explanation:

Given :

Temperature at hot reservoir , $T_h$ = 720 K

Temperature at cold reservoir , $T_c$ = 358 K

Transfer of heat, dQ = 3.00 kJ = 3000 J

(a). In the hot reservoir, the change of entropy is given by:

$dS_h= -\frac{dQ}{t_h}$              (the negative sign shows the loss of heat)

$dS_h= -\frac{3000}{720}$

      =  -4.166 J/K

(b)  In the cold reservoir, the change of entropy is given by:

$dS_c= \frac{dQ}{t_c}$              

$dS_c= \frac{3000}{358}$

      =  8.37 J/K

(c). The entropy change in the universe is given by:

$dS=dS_h+dS_c$

    = -4.16+8.37

   = 4.21 J/K

(d). According to the concept of entropy, the entropy of the universe is always increasing and never decreasing for an irreversible process. If the entropy of universe decreases, it violates the laws of thermodynamics. Hence, in part (c), the result have to be positive.

5 0
3 years ago
Make a claim for the behavior of charged objects with other charged objects. Make a claim for the behavior of charged objects wi
emmainna [20.7K]

charged objects will either attract or repel other charged objects

3 0
3 years ago
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A _____ has to do with the direction of a force​
Elenna [48]

Answer:

The "solid force"? ... The direction of the force always seems to be coming out of the solid surface. A direction which is perpendicular to the plane of a surface is said to be normal. The force that a solid surface exerts on anything in the normal direction is called the normal force.

Explanation:

i think i hope this helps

3 0
3 years ago
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An 4-kg ball experiences a force and accelerates at a rate of 1.5 m/s.
ANTONII [103]

Answer:

6.0 N

Explanation:

The strength of a force is expressed as the magnitude of the force in Newton.

The formula to apply here is :

Force= mass * acceleration

F=ma

Mass, m = 4 kg

Acceleration = 1.5 m/s²

Force= 4 *1.5 = 6.0 N

4 0
3 years ago
What are the magnitude and direction of the acceleration of an electron at a point where the electric field has magnitude 6100 n
Hoochie [10]

Force on electron due to electric field is given by

F = eE

F = 1.6 * 10^{-19}* 6100

F = 9.76 * 10^{-16} N

now the acceleration is given by

a = \frac{F}{m}

a = \frac{9.76 * 10^{-16}}{9.1 * 10^{-31}}

a = 1.07 * 10^{15} m/s^2

so above is the magnitude of acceleration and its direction is opposite to field as electron is negatively charged so direction is towards SOUTH

4 0
3 years ago
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