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soldier1979 [14.2K]
4 years ago
11

A compass in a magnetic field will line up __________.

Physics
1 answer:
Anastaziya [24]4 years ago
5 0
Line up in a direction parallel to the magnetic field lines<span />
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Two bicyclists were riding their bikes at a rate of 20 kilometers per hour (km/h). During the next half hour, they observed that
Ghella [55]

Answer: 4 night’s

Explanation:

3 0
3 years ago
Consider a spherical Gaussian surface of radius R centered at the origin. A charge Q is placed. inside the sphere. Where should
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I think you forgot to give the options along with the question. I am answering the question based on my knowledge and research. "<span>The charge can be located anywhere, since flux does not depend on the position of the charge as long as it is inside the sphere" gives the answer to the question. I hope that this answer has come to your help.</span>
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3 years ago
A"boat"is"moving"to"the"right"at"5"m/s"with"respect"to"the"water."A"wave"moving"to"the"left,"opposite"the"motion"of"the"boat."Th
s2008m [1.1K]

Answer:

0.99m

Explanation:

Firs you calculate the relative velocity between the boat and the wave. The velocity of the boat is 5m/s and the velocity of the wave is given by:

v=\lambda f=\lambda\frac{1}{T}=(110m)\frac{1}{8.3s}=13.25\frac{m}{s}

the relative velocity is:

v'=13.25m/s-5m/s=8.25\frac{m}{s}

This velocity is used to know which is the distance traveled by the boat after 20 seconds:

x'=v't=(8.25m/s)(20s)=165m

Next, you use the general for of a wave:

f(x,t)=Acos(kx-\omega t)=Acos(\frac{2\pi}{\lambda}x-\omega t)

you take the amplitude as 2.0/2 = 1.0m.

\omega=\frac{2\pi}{T}=\frac{2\pi}{8.3s}=0.75\frac{rad}{s}

by replacing the values of the parameters in f(x,t) you obtain the vertical displacement of the boat:

f(165,20)=1.0m\ cos(\frac{2\pi}{110m}(165)-(0.75\frac{rad}{s})(20s))\\\\f(165,20)=0.99m

6 0
4 years ago
2. In contrast to Venus, the coldest temperature yet measured on the surface of
garik1379 [7]

Answer:

Explanation:

<u>Temperature Scales </u>

There are three temperature scales in the modern sciences: Fahrenheit, Celsius, and Kelvin. Fahrenheit temperature scale assigns the value 32 for the freezing point of water and 212 for the boiling point of water and divides that interval into 180 parts. Celsius scale has a similar reference, giving 0 to the freezing point of water and 100 for the boiling point of water. The conversion between them is as follows

\displaystyle F=\frac{9}{5}C+32

K=C+273.15

The coldest temperature yet measured on the surface of any body in the solar system is -235°C. Converting to Fahrenheit

\displaystyle F=\frac{9}{5}(-235)+32=-391^oF

K=-235+273.15=38.15^oK

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3 years ago
Identify the characteristics of protists. Check all that apply.
romanna [79]

Answer:

There are no examples

Explanation:

3 1
3 years ago
Read 2 more answers
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