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Flauer [41]
4 years ago
8

The following picture shows some give reasons. Please answer it and I will mark you as brainliest......

Physics
2 answers:
kaheart [24]4 years ago
7 0

a) earth acts as a lange magnetic. Therefore when a magnet is hanging freely, it points towards the magnetic poles (like a compass)

b) like poles repel and unlike poles attracts. We can conclude with repulsion that poles are same

c) In our everyday experience aluminum doesn't stick to magnets. (under normal circumstances aluminum isn't visibly magnetic)

Triss [41]4 years ago
6 0

Answer:

what the other person said

Explanation:

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What does Inert mean? Why are Noble Gases Inert? Include an explanation of atomic structure and electrons.
iren2701 [21]
Depending on what way you are trying to use it electrons connect to almost anything just like little balls of magnetics think of it that way. of it being able to just force and charge into any thing.
7 0
3 years ago
Read 2 more answers
Find the orbital period (in years) of an asteroid whose average distance from the sun is 27
dmitriy555 [2]
Using Kepler's third law which is defined as the square of the average distance is directly proportional to the cube of the period. It is expressed as P^2 = a^3, Given that the a = average distance is given, the period would be much easier to compute. P = sqrt(27^3) = 140
7 0
3 years ago
A particle is moving along a circular path of 2-m radius such that its position as a function of time is given by u = (5t 2) rad
OverLord2011 [107]

Answer:

Explanation:

Given

radius of  path r=2\ m

Velocity of Particle \theta =5t^2 rad

where t=time in seconds

angular velocity of particle is given by

\omega =\frac{\mathrm{d} \theta }{\mathrm{d} t}

\omega =2\times 5t=10\cdot t

And angular acceleration is given by

\alpha =\frac{\mathrm{d} \omega }{\mathrm{d} t}

\alpha =10 rad/s^2

tangential acceleration is a_t=\alpha \times r

a_t=10\times 2=20\ m/s^2

Centripetal acceleration a_c=\omega ^2\times r

a_c=(10t)^2\times 2=200t^2

net acceleration is sum of tangential and centripetal force at any time t is given by

a_{net}=\sqrt{(a_c)^2+(a_t)^2}

a_{net}=\sqrt{(200t)^2+(20)^2}

a_{net}=20\sqrt{(10t)^2+1}\ m/s

                 

8 0
3 years ago
Time is just perception based on how we view change A. Socrates B. John watson C. William james D. None of the above
Lubov Fominskaja [6]

Answer:

C. William James

Explanation:

William James was an American philosopher and psychologist and was considered to be one of the leading thinkers of the nineteenth century. His book "The Principle of Psychology" earned him worldwide recognition.

In the last chapter of this book, he stated that time is nothing but a sensation. He argued that time as a duration is sensed and only influenced on how we view change.

6 0
3 years ago
Moby lifted Tim off the ground a distance of 2 meters using a force of 2N. How much work did Moby do?
DaniilM [7]

Answer:

4 J

Explanation:

As I guess,

From the equation,

work done = force × distance travelled

                   =  2        ×    2

                   = 4 J

There are no conversions since all are given in the standard form.

7 0
3 years ago
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