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a_sh-v [17]
3 years ago
6

How is temperature related to the physical change of a substance?Which best describes why a liquid needs a container when a soli

d does not?
Physics
1 answer:
FrozenT [24]3 years ago
5 0

Answer:

C

i just took the test!

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A cylindrical solenoid (radius r=0.6 m, turns N=600, length l=0.5 m) carries 15 A of current. What is the inductance L of the co
Anuta_ua [19.1K]

Answer:

L = 1.023 H

Explanation:

given,

radius of the cylindrical solenoid = r = 0.6 m

Number of turns = N = 600

Length = l = 0.5 m

Current in the cylindrical solenoid = 15 A

Inductance in the coil = ?

using formula

L = \dfrac{\mu_0\ N^2\ A}{l}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi r^2}{0.5}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi 0.6^2}{0.5}

L = \dfrac{4 \pi \times 10^{-7}\times 600^2\times \pi 0.6^2}{0.5}

L = 1.023 H

the inductance L of the coil is = 1.023 H

8 0
3 years ago
The noble gases can be used to as laser mediums. How is the light from one gas different from light of other gases?
neonofarm [45]

Answer:

light in the UV range.

Explanation:

Noble gases and halogens can combine to form lasers called Excimer, for this to happen the noble gas must be ionized with a high voltage discharge, thus forming a molecule of the type

       

      noble gas (X) + halogen (H) → XH

This molecule is highly unstable and decomposes within a few nanoseconds, emitting light in the UV range.

8 0
3 years ago
Determine an appropriate size for a square cross-section solid steel shaft to transmit 260 hp at a speed of 550 rev/min if the m
Phantasy [73]

Answer:46.05 mm

Explanation:

Given

Power=260\ hp\approx 260\times 746=193.96\ KW

speed N=550\ rev/min

allowable shear stress (\tau )_{max}=15\ kpsi\approx 103.421\ MPa

Power is given by

P=\frac{2\pi NT}{60}

193.96=\frac{2\pi 550\times T}{60}

T=3367.6\ N-m

From Torsion Formula

\frac{T}{J}=\frac{\tau }{r}-----1

where J=Polar section modulus

T=Torque

\tau=shear stress

For square cross section

r=\frac{a}{2}

where a=side of square

J=\frac{a^4}{6}

Substituting the values in equation 1

\frac{3376.6}{\frac{a^4}{6}}=\frac{103.421\times 10^6}{\frac{a}{2}}

a=0.04605\ m

a=46.05\ mm

7 0
3 years ago
The energy from the sun can be used in many different ways. Describe two examples of how humans use the energy from the sun in t
ioda

Answer:

here you go boi

Explanation:

Image result for The energy from the sun can be used in many different ways. Describe two examples of how humans use the energy from the sun in their everyday lives. Make sure that one of your examples includes an energy transformation and explain the form it takes after it is transformed.

Solar energy is transformed into other energy forms for our use on Earth – energy for food (chemical energy), electrical energy and heat energy. Energy from the Sun is transformed into chemical energy, which is passed along in a food chain. Without the Sun, there would be no life on Earth

6 0
2 years ago
Read 2 more answers
A simple machine does work because it applies
tigry1 [53]
Force 
or motion im not toatally sure
7 0
3 years ago
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