True or false The sound of a police siren would be an example of the Doppler effect

Answers

Answer 1

Answer: The answer to the question is True.

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include at least 3 reasons why having electricity is so great and at least 3 reasons why living without electricity would be so difficult
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1. How does an area’s weather differ from the area’s climate? (1 point). A.Weather involves temperature and precipitation and climate involves only temperature.. B. An area’s weather depends on where it is located on Earth and the area’s climate does not.. C.An area’s weather does not change very much and an area’s climate changes many times.. D.Weather is the area’s day-to-day conditions and climate is the area’s average conditions.. 2. All of the following factors contribute to Earth’s climate EXCEPT (1 point) . latitude.. longitude.. transport of heat by winds.. shape and elevation of landmasse

At a certain elevation, the ________ , the air becomes saturated and water-vapor molecules ________.

Answers

At certain altitude, the temperature of air decrease, The air becomes saturated and water vapour molecules starts condensing.

As the altitude of air increase, the atmospheric pressure decrease due to which the temperature of the air decrease. The water molecules in the atmosphere start condensing, which saturate the air (that is air can no hold water molecules), due to which the water vapour molecules starts condensing and falls on the earth in the form of rain.

Accelaration is a derived quantity .Give reason

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Answer:

The accerlation is a derived from the other quantities like change in velocity/time take etc.

How many neutral points does a bar magnet have

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Answer:

There are two neutral points. At a neutral point, the net magnetic field becomes zero.

Explanation:

If the velocity of an object is changing, its momentum is also changing. true or false

Answers

It is absolutely true that when the velocity of an object changes, the momentum of the object also change. Momentum of any object is defined as the multiple of velocity of an object and the mass of the object. So we can easily deduce that momentum is directly proportional to velocity of an object if the mass of the object remains constant. So it can be seen that if the mass of the object does not change then any change in velocity is bound to have an effect on the momentum of the object. We can easily write the equation as momentum= mass x velocity.

A signal from the nervous system that is sent from the brain to the hand would follow a different pathway than a signal sent from the hand to the brain.

Answers

Answer:

FALSE!! ❌❌❌

Explanation:

The brain sends messages via the spinal cord to the body's peripheral nerves, which control the muscles and internal organs. ... The brain sends messages via the spinal cord to peripheral nerves throughout the body that serve to control the muscles and internal organs.

In conclude the answer is FALSE!❌❌❌

Bonus** In Ed Is false

Hope this helps! ✔

Final answer:

A signal from the brain to the hand follows an efferent pathway through the spinal cord, while a signal from the hand to the brain follows an afferent pathway through the spinal cord.

Explanation:

The nervous system is responsible for sending signals between the brain and different parts of the body. When a signal is sent from the brain to the hand, it follows a pathway called the efferent pathway. This pathway involves the signal traveling from the brain, through the spinal cord, and then to the hand. On the other hand, when a signal is sent from the hand to the brain, it follows a pathway called the afferent pathway. This pathway involves the signal traveling from the hand, through the spinal cord, and then to the brain.

Learn more about Nervous system pathways here:

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The acceleration due to gravity on the surface of Jupiter is about 2.5 times the acceleration due to gravity on Earth’s surface. What would be the weight of a space probe on the surface of Jupiter?A.2.5 times lighter than on Earth
B.6.25 times heavier than on Earth
C.2.5 times heavier than on Earth
D.6.25 times lighter than on Earth