3 years ago

Using the statistical definition of entropy, what is the entropy of a system where W = 4?

Physics

1 answer:

Oliga [24]3 years ago

5 0

S = k ln(W)
= 1.38*10^-23 J/K * ln(4)
= 1.91*10^-23 J/K
so it will be c

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A single circular loop of wire of radius 0.45 m carries a constant current of 2.4 A. The loop may be rotated about an axis that

Snowcat [4.5K]

Answer:

The magnitude of the uniform magnetic field exerting this torque on the loop is 1.67 T

Explanation:

Given;

radius of the wire, r = 0.45 m

current on the loop, I = 2.4 A

angle of inclination, θ = 36⁰

torque on the coil, τ = 1.5 N.m

The torque on the coil is given by;

τ = NIBAsinθ

where;

B is the magnetic field

Area of the loop is given by;

A = πr² = π(0.45)² = 0.636 m

τ = NIBAsinθ

1.5 = (1 x 2.4 x 0.636 x sin36)B

1.5 = 0.8972B

B = 1.5 / 0.8972

B = 1.67 T

Therefore, the magnitude of the uniform magnetic field exerting this torque on the loop is 1.67 T

8 0

3 years ago

Obtain a volume of 12.5 millimeters of liquid in the diagram

tiny-mole [99]

Answer:

D remove 1.5 ML of liquid.

Explanation:

5 0

2 years ago

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What is the average velocity of a car that travels 50 kilometers due west in 0.50 hour?

Pie

Average Velocity= displacement/time Av=50/0.50 Av=100

4 0

3 years ago

Giving lots of points

bekas [8.4K]

Answer:

wind turbine

Explanation:

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2 years ago

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An object is projected from the ground with an upward speed of ų m/s has a speed of 23m/s when it is at a height of 5m above the

vovikov84 [41]

Answer:

25.08m/s

Explanation:

mgh1 + 0.5mv1² = mgh2 + 0.5mv2²

h1 = 0m

v1 = u

h2 = 5m

v2 = 23m/s

putting the values into the formula above;

m(10)(0) + 0.5m(u²) = m(10)(5) + 0.5m(23²)

0 + 0.5mu² = 50m + 264.5m

0.5mu² = 314.5m

dividing through by m

0.5u² = 314.5

u² = 629

u = 25.08m/s

Therefore, the initial speed "u" = 25m/s

6 0

2 years ago