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
egoroff_w [7]
3 years ago
10

a car traveling north at 17.7 m/s. after 12 seconds its velocity is 14.1 m/s in the same direction. find the magnitude and direc

tion of the car's average acceleration
Physics
1 answer:
elixir [45]3 years ago
7 0
Acceleration is equal to the change in velocity per unit time. In this case, velocity has changed from 17.7 m/s to 14.1 m/s, which is a decrease of 3.6 m/s. This takes place in 12 seconds, so the average acceleration is 3.6 m/s / 12s = 0.3 m/s^2. The direction of this acceleration is south, since the car's northbound speed is decreasing.
You might be interested in
Which of the following statements is false?
vladimir1956 [14]

An excited atom can return to its ground state by absorbing electromagnetic radiation is false about the electromagnetic radiation.

Option B

<u>Explanation</u>:

In the scope of modern quantum theory, the term Electromagnetic radiation is identified as the movement of photons through space. Almost all the sources of energy that we utilize today such as coal, oil, etc are a product of electromagnetic radiation which was absorbed from the sun millions of years ago.

Various properties of electromagnetic radiations are a directly proportional relationship between the energy and the frequency, Inverse proportionality between frequency and the wavelength, etc. Hence, we can conclude that an "excited atom" can never return to its ground state by assimilating electromagnetic radiation and the 2nd statement is false.

4 0
3 years ago
Kelly is riding a bicycle, moves with an initial velocity of 5 m/s. Ten seconds later, she is moving at 15 m/s. What is her acce
sladkih [1.3K]

Answer:

her acceleration is 1 m/sec

Explanation:

The following information is given in the question

The initial velocity is 5 m/s

After 10 seconds, she would be moved at 15 m/s

We need to find the acceleration

As we know that

Acceleration = Change in speed ÷ time

Acceleration = (15 - 5) ÷ (10)

= 1 m/sec

Hence, her acceleration is 1 m/sec

The same would be considered  

3 0
3 years ago
Suppose that the Sun were to collapse from its current radius of about 700,000 km to a radius of only about 6000 km (about the r
Maksim231197 [3]

Answer:

Only there will be a change in density of sun.

Explanation:

As your question says only the radius of sun is decreased and there is no change in the mass. So it means that the center of gravity will be the same and as a result the gravitational force remains the same. Only the density of sun changes as it shrinks.

8 0
3 years ago
Read 2 more answers
An organism's scientific name consists of...
Finger [1]

Answer:

binomial nomenclature.

Explanation:

This means that an organism's scientific name is a combination of two terms.

The first is the name of the organism's genus, and the second is the name of the organism's species

together the genus and the species create the name of a single organism.

8 0
3 years ago
Practice
stiv31 [10]

Answer:

The answer is Letter B The car travel at a constant veloc

5 0
3 years ago
Other questions:
  • Which step in an investigation of arson helps insurance claims the most?
    13·1 answer
  • Which Factors is most likely to decrease the stability of an ecosystem
    14·1 answer
  • 2. Discuss the relationship between electric and magnetic fields.
    15·2 answers
  • Why couldn't the Royal Society publish Newton's Principia?
    15·1 answer
  • How does SCOTUS view information obtained by private citizens and subsequently shared with law enforcement?
    6·1 answer
  • The Hoover dam is a hydroelectric power plant that converts the energy of falling water into electricity. Which of the following
    8·2 answers
  • Calculate the kinetic energy of a 5.2kg object moving at 2.4m/s.
    9·1 answer
  • The triceps muscle in the back of the upper arm extends the forearm. This muscle in a professional boxer exerts a force of 1783
    14·1 answer
  • A plane is traveling North at 80km/hr into a 20 km/hr headwind (South). What is the plane's resultant velocity?
    12·2 answers
  • Give an example of free fall​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!