If the pitch of a sound decreases and the sound source is moving, is the sound source moving toward or away from the observer

Answers

Answer 1

Answer: the sound source must be moving away

Related Questions

An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?
The amoeba is a protozoan that moves with _____. flagella cilia pseudopodia none of the above
Name three devices that can store electric potential energy
In what distance will a car traveling with 100 kN stop if a force of -200N is applied?
Anita is running to the right at 5 m/s , as shown in (Figure 1) . Balls 1 and 2 are thrown toward her by friends standing on the ground. According to Anita, both balls are approaching her at 16 m/s .According to her friends, with what speed was ball 1 thrown? According to her friends, with what speed was ball 2 thrown?

Which of the following answers describes Kepler's laws?a. Planets orbit in elliptical patterns; the bigger the planet, the more gravitational pull; a planet's gravitational pull is stronger or weaker depending on its distance from the Sun.

b. A planet's orbit covers equal distances in equal amounts of time; the speed of a planet's orbit depends on its distance from the Sun; the bigger the planet, the slower it moves.

c. Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun.

Answers

The correct answer to the question is : C) Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun.

EXPLANATION:

Before coming into any conclusion, first we have to understand three laws of Kepler on planetary motion.

First law: Every planets moves around the sun in elliptical orbits with the sun situated at one of their foci.

Second law: Planets sweep out equal areas in equal interval of time.

Third law: The square of time period of rotation of every planet is directly proportional to the cube of semi major axis.

Hence, from above we see that the option three corresponds to the Kepler's laws partially.

Hence, the correct statement is option three.

Choices a). and b). each include some truth
mingled with some nonsense.

Choice c). is in fact a scientifically sloppy but intuitively
satisfying summary of Kepler's three laws of planetary motion.

Water is made of two hydrogen atoms and one oxygen atom bonded together. Julia is describing how water undergoes a physical change when it boils. She says that the particles shift to be farther apart and that the oxygen and hydrogen separate. She also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. She finishes her description by saying that the steam can be turned back into water if it is cooled.what was her mistake?

Answers

Answer:

atoms remain bonded to each other in physical changes.

Explanation:

Answer:

Explanation:

A 5 kg box is sliding across a level floor. The box is acted upon by a force of 27 newtons east and a frictional force of 17 newtons west. What is the magnitude of the acceleration of the box? Type only numbers. Do not include the units of m/s2.

Answers

Answer:

The acceleration of the box is 2.

Explanation:

According to Newton's second law of motion, the acceleration of any object will be directly proportional to the net unbalanced force acting on the object and inversely proportional to the mass of the object.

Net force = Mass × Acceleration

So $Acceleration = (Net force)/(Mass)$

Since in this case, the box is experiencing a force from east of magnitude 27 N and resisting force of about 17 N from west. So the net force will be the difference of acting and reacting force.

Net force = 27-17 = 10 N.

Thus, $Acceleration = (10 N)/(5 kg)$

So 2 $m/s^(2)$ is the acceleration of the box. Thus the magnitude of acceleration of the box is 2.

A piece of metal and a piece of brick are both sitting in the sun if both are the same mass what property of matter will make the metal feel hotter to touch

Answers

Metals are highly conductive both electrically and thermally because of its highly ordered crystalline structure of metallic particles. Brick is poor conductor and will be less hot than metal.

What is conduction?

Conduction is the mechanism of heat transfer in solids. Solids are composed of closely packed particles arranged in a chain with strong intermolecular forces.

Metals are highly conductive. They have free electrons which are delocalized in the crystal lattice. They can be easily transited through and make the material conductive.

Bricks is poor conductor of heat and odes not conduct electrically, it easily melts at high temperatures and easily cools as well. Therefore, at the surface of sun, the highly conductive metal will be more hotter.

To find more on conduction, refer here:

brainly.com/question/18132856

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The piece of metal will feel hotter to touch because of its heat conductance. whereas the brick does not conduct heat as well as the metal. Hence the piece of metal feeling hotter to touch.

A 9250 kg bridge going east-west is supported by two pillars. The bridge is 47.0 m long with a pillar 5.0m from the west end and 10 meters from the east end. How much force is applied on each of the pillars? Answer: 39,023 N and 52,477 N