PHYSICS HIGH SCHOOL

When a wave is acted upon by an external damping force what happens to the energy of the waveA-the energy of the wave decreases gradually
B-rhe energy of the wave increases gradually
C-there is no change in the energy of the wave
D-the propagation of the wave stops immediately

Answers

Answer 1
Answer:

Answer:

A-the energy of the wave decreases gradually

Explanation:

when a wave is acted upon by an external damping force the energy of the wave decreases gradually.

The energy degrades into the form of heat which is considered to be of less value and use. The reason is because it disperses and spreads more widely.

So therefore it end up as heat with a little sound but that is close to none because that too disperses into heat i.e. decreased form of energy.
Answer 2
Answer:

Answer:

A

Explanation:

PLATO

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A bicycle is heading west. It goes 500m in 5 minutes. What is its velocity?

Answers

Speed = 500m/5min = 100 m/min. Direction = west. Velocity = 100 m/min west.
Velocity = distance\time

500/(5*60)

=500
------
300 m/s west.

According to Friar Laurence's philosophy, what is the ideal temperature?

Answers

According to Friar Laurence's philosophy, the cold weather is the ideal temperature. 

Answer:

Cold

Explanation:

It was correct on my quiz

A doctor diagnoses a man with an acute strain. Which job is most likely to cause an acute strain?

Answers

Answer:

A bricklaying job

Explanation:

To start with an acute strain is a type of inury that occurs when heavy objects are improperly lifted an individual in ways that the person's muscles becomes overstressed.

There are a number of jobs that are likely to cause acute strain including bricklaying jobs. People engaged in bricklaying jobs tend to improperly lift heavy objects, an activity that leads to repititive and prolonged overuse of muscles and tendons which is known as acute strain.

Another example of a job that can lead to acute strain is furniture moving.

Which phenomenon is a result of the gravitational force of the Sun?O rotation of the planets on their axes
O rotation of the Moon on its axis
O revolution of the Moon around Earth
O revolution of the planets around the Sun

Answers

Answer:

revolution of the planets around the Sun.

Explanation:

The revolution of the planets around the Sun is a result of the gravitational force exerted by the Sun. The Sun's gravitational pull attracts the planets, causing them to move in an elliptical orbit around it. This motion is known as the revolution of the planets around the Sun. The other options listed (rotation of the planets on their axes, rotation of the Moon on its axis, and revolution of the Moon around Earth) are also related to motion and gravity, but they are different phenomena.

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

Tech A says that a battery stores electrical energy in chemical form. Tech B says that a battery creates direct current. Who is correct?

Answers

Answer:

Battery stores  the electrical energy in the chemical form. When we connect it's positive and negative terminals and provide the path for the flow of electrons then it converts that chemical energy into the electrical energy and hence the direct current is created. So both of the technicians are right.

Explanation:
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