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shusha [124]
3 years ago
15

Which is true of Pluto?

Physics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:d

Explanation:

Probably becuase it is further than Saturn

It takes like 70 years to go around the sun

And it is bigger than the moon

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Scientific theories have strod the test of time and will not change
Nataly [62]
That is not a question but not all scientific theories have stood the test of time
8 0
4 years ago
A giant wall clock with diameter d rests vertically on the floor. The minute hand sticks out from the face of the clock, and its
Katyanochek1 [597]

Answer:

d_{x}(t)=(D/2)cos(\frac{\pi}{30}*t)

Explanation:

We can try writing the equation of the horizontal component of the length of the minute hand in terms of distance and the angle, that depends of time in this particular case.

The x-component of the length of the minute hand is:

d_{x}(t)=dcos(\theta (t)) (1)

  • d is the length of the minute hand (d=D/2)
  • D is the diameter of the clock
  • t is the time (min)

Now, using the angular kinematic equations we can express the angle in term of angular velocity and time. As we know, the minute hand moves with a constant angular velocity, so we can use this equation:

\theta (t)=\omega *t (2)

Also we know, that the minute hand moves 90 degrees or π/2 rad in 15 min, so using the definition of angular velocity, we have:

\omega=\frac{\Delta \theta}{\Delta t}=\frac{\theta_{f}-\theta_{i}}{t_{f}-t{i}}=\frac{\pi/2-0}{15-0}=\frac{\pi}{30}

Now, let's put this value on (2)

\theta (t)=\frac{\pi}{30}*t

Finally the length x(t) of the shadow of the minute hand as a function of time t, will be:

d_{x}(t)=(D/2)cos(\frac{\pi}{30}*t)

I hope it helps you!

6 0
3 years ago
The electric field 0.500 m from a charge is 3370 N/C, pointing away from the charge. What is the charge? Include the sign of the
iragen [17]

Answer: 9.36 is correct on acellus

Explanation:

3 0
3 years ago
The makeup of a string quartet is _____.
slamgirl [31]
The answer to this question is two violins, a viola and a cello
The string quartet is one of the earliest form of musical ensembles in history. This form of ensembles was brought to recognition by the Austrian composer Joseph Haydn<span>, with his works in the 1750s establishing the genre and this form is still considered one of the hardest ensembles because each player has to cover a lot of parts within a session.</span>
3 0
3 years ago
When placed near another charge, a 20 microcoulomb charge experiences an attractive force of 0.080 N. What is the electric field
prohojiy [21]

Answer:

E = 4000 N/C

Explanation:

Given the following data;

Force = 0.080 N.

Charge, q = 20 microcoulomb = 20 * 10^-6 = 2 * 10^-5 Coulombs

To find the electric field strength;

Mathematically, the electric field strength is given by the formula;

Electric field strength = force/charge

Substituting into the formula, we have;

E = 0.080/0.00002

E = 4000 N/C

8 0
3 years ago
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