PHYSICS HIGH SCHOOL

when the lowest frequency above the fundamental is played, at what height will the particles' displacement be out of phase and have the same amplitude as that of the particles 8.0cm above the surface of the water? give your answer as a distance above the surface of the water.

Answers

Answer 1

Answer:

Answer:

theg watte wil shajka

Explanation:

bshswu

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A/an _______ is a type of research that involves observation and collecting data but does not include a control. A. dependent variable B. investigation C. experimentation independent variable
Anyone get this if you do please help me step by step
You put a piece of ice into a glass of lemonade at room temperature. Which statements explains the heat flow in this scenario? A. Heat flows in both directions. B. Heat flows from the ice to the lemonade. C. Heat flows from the lemonade to the ice. D. Heat flows from the ice to the lemonade to the glass.

A solid sphere has a radius of 0.200 m and a mass of 150.0 kg. how much work is required to get the sphere rolling with an angular speed of 50.0 rad/s on a horizontal surface? assume that the sphere starts from rest and rolls without slipping.

Answers

Here in this case we can use work energy theorem

As per work energy theorem

Work done by all forces = Change in kinetic Energy of the object

Total kinetic energy of the solid sphere is ZERO initially as it is given at rest.

Final total kinetic energy is sum of rotational kinetic energy and translational kinetic energy

$KE = (1)/(2)Iw^2 +(1)/(2) mv^2$

also we know that

$I = (2)/(5)mR^2$

$w= (v)/(R)$

Now kinetic energy is given by

$KE = (1)/(2)((2)/(5)mR^2)w^2 +(1)/(2) m(Rw)^2$

$KE = (1)/(5)mR^2w^2 +(1)/(2) mR^2w^2$

$KE = (7)/(10)mR^2w^2$

$KE = (7)/(10)*150*(0.200)^2(50)^2$

$KE = 10500 J$

Now by work energy theorem

Work done = 10500 - 0 = 10500 J

So in the above case work done on sphere is 10500 J

Shear causes horizontal movement along a fault plane in a/n _______ fault. A. reverse B. strike-slip
C. normal
D. irregular

Answers

The answer is B. Strike slip fault. Shearing occurs when plates or blocks of rocks slide past each other in the opposite direction. This occurs at transform plate margins. An example is the San Andreas Fault running through California, USA. Compression occurs at reverse faults and tension at normal faults.

THE ANSWER IS B. STRIKE-SLIP

Which of the following is the correct unit for time when calculating power in watts?a. hours
b. minutes
c. days
d. seconds

Answers

Which of the following is the correct unit for time when calculating power in watts?

The correct unit for time when calculating power in watts is seconds. The answer is letter D. The rest of the choices do not answer the question above.

Parallel light waves hit the surface of a still lake and reflect in the same direction. Which interaction of light and matter does this illustrate?

Answers

Parallel light waves hit the surface of a still lake and reflect in the same direction and the interaction of light and matter that it illustrates is called regular reflection. Regular reflection occurs whenever the reflecting surface is very smooth. The surface of the still lake is smooth. I hope the answer helps you.

Answer:

regular reflection

Explanation:

Gradpoint

describe the various renewable resources of energy that have the potential to fulfill the needs of the society

Answers

As a whole, renewable energies are big advantage for society because the source are just easy to access and you need not to pay. Here are the renewable resources:
(1) Solar Power - It is a way of obtaining usable energy from the light of the sun. Why not take advantage of the increasing heat of the sun as energy?
(2) Wind Power - It is a way of obtaining usable energy from the wind. There are places in the world that is very windy.
(3) Hydropower - It is a way of obtaining usable energy from water that falls or moving. Because of the force it exerts, most especially to waterfalls, it create a big push to produce energy.

Is adding sugar to lemonade a chemical or physical change

Answers

physical.. think of it as a person putting on weight.. adding weight, but still a person. adding sugar, but still lemonade.

That's a physical change since nothing's really happening except for the flavor. Only the flavor changed cause you added something, but it's not a chemical

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