PHYSICS HIGH SCHOOL

While traveling north on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutesdue to traffic conditions. Calculate the acceleration.

Answers

Answer 1
Answer:

Answer:

the acceleration is 2.5 MPH over 12 mins.

Explanation:

30 MPH in 12 minutes=

30/12=

2.5

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What is the importance of the ozone layer?

Answers

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

A wave travels down the length of a 25-meter rope in 5.0 seconds. The speed of the wave is _____.5.0 m/s
0.2 m/s
125 m/s
25 m/s

Answers

The answer is 5.0 m/s. It is asking for the SPEED of the wave, therefore, you need to know that speed = distance / time. You just simply divide 25 meters (distance) to 5.0 seconds (time) which will leave you the speed of 5.0 m/s. 

Answer:

5.0 m/s

Explanation:

Distance/Time Taken

Thermal energy is added to a sample, its particles move ?

Answers

Yes, if the temperature increases, than that means the particles are moving faster. Temperature is the measure of movement of particles in an object or substance.

By thermal energy, you mean adding heat correct....? I'm not very good at this sort of thing, but I gave you what I have..

An electron is pushed into an electric field from infinity where it acquires a 1-V electrical potential. Suppose instead that two electrons are pushed from infinity the same distance into the same electric field. The electrical potential of the two electrons is ___________.a) 0.5V
b) 1V
c) 0.25V
d) 4V
e) 2V

Answers

Answer:

The electrical potential of the two electrons is 1 V.

(b) is correct option.

Explanation:

Given that.

Electric potential = 1 V

We know that,

The electric potential depends on the distance.

The electric potential does not depend on the charge.

The formula of electric potential

V=Ed

Where, E = electric field

d = distance

Hence, The electrical potential of the two electrons is 1 V.

4. Which problem is most likely to result from the use of nuclear power?O A. storage of radioactive wastes
B. miners getting trapped underground
C. oil spills that pollute oceans and beaches
O D. pollutants in the groundwater after drilling

Answers

Answer:

i think it is A

Explanation

A species of insect is newly introduced into the United States from the Philippines. This insect becomes established, laying its eggs on the leaves of oak trees. How can a biologist determine if the relationship between the insect and the oak tree is commensalism, mutualism, or parasitism?

Answers

Commensalism describes the interaction between the insect and the oak tree.

What is commensalism?

It is a type of biological interaction between two species in which one of the interacting species is benefitted while the other species is unaffected.

How is the above interaction commensalism?

Since the insect gets a safe place to lay its egg it gains from this interaction while the tree is unaffected.

When will this interaction be a mutualism interaction?

  • When both the organisms benefit from the interaction.
  • If the insect helps in the pollination of the tree while the insect gets a safe place to lay its egg.

When will this interaction be a parasitic interaction?

  • When one of the organism benefit at the expense of the other.
  • For example, If the insect sucks the sap of the tree on which it lays its egg. The insect benefits while the tree is harmed.

To learn more about biological interaction, species, and commensalism here,

brainly.com/question/14224704

#SPJ2

Answer:

its D!!!

Explanation:

If the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism.
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