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tresset_1 [31]
2 years ago
10

What type of waves moves energy forward, but the source moves up and down?

Physics
1 answer:
stich3 [128]2 years ago
4 0
I'm pretty sure its transverse waves 
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Please answer this question for me and explain why.
horsena [70]

Answer:

D.None of these

Explanation:

The derivation of acceleration formula:

Let us call the 5kg mass m_2 and the 4kg mass m_1. If the tension in the string is T then for the mass m_2

(1). T-m_2g=-m_2a <em>(the negative sign on the right side indicates that acceleration is downwards)</em>

And for the mass m_1

(2). T-m_1g =m_1a<em> (the acceleration is upwards, hence the positive sign)</em>

Solving for T in the 2nd equation we get:

T =m_1a+m_1g,

and putting this into the 1st equation we get:

m_1a+m_1g-m_2g=-m_2a\\\\m_1a+m_2a = m_2g-m_1g\\\\a(m_1+m_2)= (m_2-m_1)g

\boxed{a= \dfrac{(m_2-m_1)}{(m_1+m_2)} g}

Back to the question:

Using the formula for the acceleration we find

a= \dfrac{(5kg-4kg)}{(5kg+4kg)} g

a = \dfrac{g}{9},

which is the acceleration that none of the given choices offer. Also, the acceleration of the two blocks is the same, because if it weren't, the difference in the instantaneous velocities of the objects would cause the string to break. Therefore, these two reasons make us decide that none of the choices are correct.

7 0
3 years ago
I dolt understand what to do next please help
lidiya [134]
Divide 24 by 12.
24/t = 12
24/12 = t
24/12 = 2
t = 2
6 0
3 years ago
If the moon is rising at midnight, the phase of the moon must be
Nadya [2.5K]
The phase is called 3rd quarter.

Hope this helps:)
7 0
3 years ago
A wave has a wavelength of 13 mm and a frequency of 18 hertz. What is its speed?
labwork [276]
Velocity = Frequency x Wavelength

= 18 x 13 = 234 mm/s
4 0
3 years ago
A. At what point in it's motion is the kinetic energy of the end of a pendulum greatest? b. At what point is the potential energ
Darya [45]

The kinetic energy will be greatest at the bottom of the swing motion.

The potential energy will be greatest at the highest position of the swing.

Potential energy is the energy stored in an object or system due to the position or placement of its parts. However, it is not affected by the external environment of the object or system. Kinetic energy, on the other hand, is the energy of the particles of an object or system in motion.

In an oscillating pendulum, the potential energy and gravitational kinetic energy are constantly changing. The potential and kinetic energies are maximal at extreme and intermediate positions, respectively.

Learn more about the pendulum in

brainly.com/question/14759840

#SPJ4

6 0
1 year ago
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