1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly [62]
3 years ago
7

A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.

Biology
1 answer:
emmainna [20.7K]3 years ago
4 0

Answer:

The deceleration of the plane is 0.25 m/s^{2}.

Explanation:

Deceleration is the converse of acceleration.

From first law of motion, we have;

v = u + at

where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Thus,

v = 50 m/s

u = 80 m/s

t = 120 s

50 = 80 + 120a

50 - 80 = 120a

-30 = 120a

a = \frac{-30}{120}

  = -0.25

a = -0.25 m/s^{2}

The deceleration of the plane is 0.25 m/s^{2}.

You might be interested in
Succession occurs when environmental factors affecting an ecosystem change. True or False
zhannawk [14.2K]

Answer: True

Succession is the phenomena in which changes in the biotic and abiotic factors of the environment leads to change in the ecosystem. A succession is a process in which a biological community is replaced by another biological community until a mature ecosystem is formed this process is influence by environmental factors. Primary succession is the primitive environment where no biotic community previously existed it is followed by secondary and subsequent succession were life forms develop and form an ecosystem. Some of the environmental factors are:

Topographical : These are the change in the region or habitat were succession occurs. Landslides, volcanic eruption, glacier melting etc. are the examples , as these topographical changes can bring reformation of the landscape. The disturbance caused by these topographical changes will allow the disturbance tolerant species to repopulate the habitat.  This can be a transition from primary to secondary succession.

Soil : It is an abiotic factor.The growth of the plants requires suitable soil conditions. The type of soil will affect which species will inhabit the area. The soil moisture and pH greatly affect the number of plant species in an area.

Climate : It can influence the direction of succession. Climatic factors includes rain, wind etc. For example a region lacking proper rainfall the species will be tolerant to dry and drought conditions. The region with heavy rainfall, the species will be more tolerant to moisture. Wind being a climatic factor can cause wind erosion affect the soil quality. Wind can lead to heavy forest fires can therefore, wiped out community.

8 0
3 years ago
Read 2 more answers
Examine the false statement.
Annette [7]

The sentences that make sense are "Volatile liquids are flammable" and "Liquids burn easily."

5 0
3 years ago
Read 2 more answers
3. Si sales de tu casa y recorres 5 metros de distancia. ¿A qué distancia te<br><br> desplazaste?
olganol [36]

Answer:

5 metros.

Explicación:

Si sale de su casa y camina 5 metros, significa que está a 5 metros de su casa porque cubre 5 metros de distancia. La distancia es la longitud que recorre un cuerpo entre dos puntos. Aquí un punto es la casa y el otro punto es la persona, por lo que si calculamos la longitud, encontramos que el individuo cubre 5 metros por lo que podemos concluir que el individuo está a 5 metros de su casa si camina 5 metros de su casa. casa al exterior.

8 0
3 years ago
Identify the remaining processes and components of the carbon cycle
Free_Kalibri [48]

The correct processes and components of the carbon cycle is given in the image attached .

5 0
3 years ago
Read 2 more answers
Where does the oxygen released during photosynthesis come from​
victus00 [196]

Answer:

Oxygen liberated during photosynthesis comes from the splitting or hydrolysis of water in the green plants. Cornelius van Niel experimentally proved for the first time that the oxygen liberated during photosynthesis comes from water and not from carbon dioxide.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What must be true about the concept of evolution​
    6·1 answer
  • PLS ANSWERRRRRR Describe how a developed vent community is replaced with a new community.
    13·1 answer
  • Early cells likely formed from a group of organic compounds, including proteins, and primitive fatty acids. Why do most scientis
    9·1 answer
  • How did Hershey and Chase ""label"" viral DNA and viral protein so that they could be distinguished? Explain why they chose each
    5·1 answer
  • CAN YOU PLEASE HELP ME WITH THIS CROSSWORD PUZZLE! I DONT UNDERSTAND HOW TO DO THIS! PLEASE HELP ME!
    7·1 answer
  • Which organelle determines if an organism is an autotroph
    11·1 answer
  • Mutualism, commensalism, and parasitism are the three types of a. Symbiotic relationships. B. Predation. C. Competition. D. Prey
    13·2 answers
  • Which balances the equation Mg + O2 → MgO?
    15·2 answers
  • Which of the following are behavioral adaptions for animals to survive in the extreme cold of the tundra biome?
    15·2 answers
  • What do these reactions say about substances and chemical reactions?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!