PHYSICS HIGH SCHOOL

A dog looking for its bone in the yard, first heads 160.0° for 14.0 m and then turns and heads west for 8.50 m.a. What is the magnitude of the dog's displacement?
b. What is the direction of the dog's displacement?

Answers

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Astronauts traveling toward Earth in a fastmovingspacecraft receive a radio signal from anantenna on Earth. Compared to the frequencyand wavelength of the radio signal emitted fromthe antenna, the radio signal received by theastronauts has a(1) lower frequency and a shorter wavelength(2) lower frequency and a longer wavelength(3) higher frequency and a shorter wavelength(4) higher frequency and a longer wavelength
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Which of the following does a weather station model demonstrate?A) altitude
B) air mass
C) air density
D) temperature

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D
A weather station model depicts many weather elements such as wind speed and direction, cloud type, cloud cover, temperature, dew point and others. However, options A, B, and C are not depicted.

d, temperature

its the right answer on the test !! :D

The smallest group of particles in a crystal that retains the shape of the crystal is called the

Answers

Answer:

Unit Cell

Explanation:

  • A unit cell is the smallest fundamental particle of a crystal structure that represents the structure of a crystal.
  • Long-range, three-dimensional repetitiveness of this unit cell forms a crystal. A unit cell is composed of ions or atoms in a particular arrangement forming a well-defined structure.
  • Crystal have a sharp melting and boiling point and when cut using a tool, they give a sharp edge on the pieces.

Speed / 16.0 m/s 12.0- 8.0 4.0 0 0 0.5 1.0 1.5 time / seconds 2.0 2.5 3.0 calculate the distance that the car travels in the first 0.5 seconds calculate the distance that the car travels in the first 0.5 seconds ​

Answers

Answer: 8 m

Explanation:

From the equation distance = velocity * time, we can find the distance from a velocity vs. time graph by finding the area under the curve, since we get that area from multiplying velocity and time together.

For the first 0.5 seconds, the velocity is 16 m/s and the change in time is 0.5.

16 * 0.5 = 8 m.

Learn more about the relationship between distance and velocity here: brainly.com/question/29409777

What term is used to describe the 4 in the expression 4 Ca(NO³)²

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Hello,

The 4 describes the amount of calcium in that compound.

Have A Good Day.

As a 2-kg ball rolls down a ramp, the net force on it is 10 N. What is the acceleration?

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That all depends on the direction of the force. If the force is parallel to the ramp, then the acceleration of the ball is 5 m/s^2. If the force isn't parallel to the ramp, then the acceleration is less.

What is the importance of the ozone layer?

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Importanceofozonelayer:

  • The ozone shields the surface of the earth from ultraviolet UV radiation from the sun.
  • These radiations are highly damaging as they can cause cancer in both plants and animals, damage to eyes and immune system.
  • They can also lead to variations in global rainfall, ecological disturbances and dwingling of global food suppliers.

Explanation:

Formationofozonelayer:ozone at the higher level of the atmosphere is a product of UV radiations acting on oxygen O2 molecule. The higher energy UV radiations split apart some molecular oxygen( O2) into free oxygen (O) atoms.

Depletionodozonelayer:The amount of ozone in the atmosphere began to drop sharply in the 1980's . This decrease has been linked to synthetic chemicals like cholorofluorocarbons ( CFC's ) which are used as refrigerants and in fire extinguishers.

to protect us from the harmful UV rays from the sun so we don't become human bacon
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