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
Sholpan [36]
2 years ago
12

Alexis walked 1.5 km to her house in 0.5 hours. What is Alexis’ speed?

Physics
1 answer:
katrin2010 [14]2 years ago
4 0

Answer:

Speed = 3 [km/h]

Explanation:

To solve this problem we must use the definition of speed which relates the distance traveled for a while.

Distance = 1.5 [km] = 1500 [m].

time = 0.5 [hr] = 1800 [s]

Speed = Distance/time

Speed = 1.5/0.5

Speed = 3 [km/h] or 1500/1800 = 0.8333[m/s]

You might be interested in
A county commissioner wants to reduce the amount of waste sent to the local landfill. Which of the following would result in the
Nookie1986 [14]
The recycling of glass, plastic, and metal would highly reduce the amount of the waste being sent to the local landfill. The large plastic container, fiberboards, etc, are removed by hand for this. This sorting makes it easy to recycle and reuse the plastic and fiber materials. 
8 0
2 years ago
When designing a user interface, the most important information should be placed in the ______ of the screen.
musickatia [10]

Answer:

upper-left corner

Explanation:

Most vital information are positioned in a place where users can view them clearly and without obstruction.

3 0
3 years ago
In 1995 a research group led by Eric Cornell and Carl Wiemann at the University of Colorado successfully cooled Rubidium atoms t
saveliy_v [14]

Answer:

0.00493 m/s

Explanation:

T = Temperature of the isotope = 85 nK

R = Gas constant = 8.341 J/mol K

M = Molar mass of isotope = 86.91 g/mol

Root Mean Square speed is given by

v_r=\sqrt{\dfrac{3RT}{M}}\\\Rightarrow v_r=\sqrt{\dfrac{3\times 8.314\times 85\times 10^{-9}}{86.91\times 10^{-3}}}\\\Rightarrow v_r=0.00493\ m/s

The Root Mean Square speed is 0.00493 m/s

6 0
3 years ago
Which was not a cause of the Spanish-American War in 1898?
diamong [38]
(d) President McKinley did not want war.
7 0
3 years ago
Read 2 more answers
What cell organelle is necessary for cellular respiration
podryga [215]
It is the cytoplasm.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A total charge of 6.3×10−8 C is distributed uniformly throughout a 2.7-cm radius sphere. The
    13·2 answers
  • Heat moves from a cup of hot tea into the hands of the person holding it because of heat transfer by
    5·1 answer
  • 1) A common surface feature on the terrestrial planets is
    10·1 answer
  • Have scientists discovered a fifth fundamental force of nature?
    8·1 answer
  • 1. To describe the length of a classroom, a student should use what? A) centigrams B) centimeters C) kilometers D) meters 2. Whi
    12·2 answers
  • Use the "Force applied" slider to set the force applied on the elephant to somewhere in the middle of the range. After you have
    13·1 answer
  • 1.
    14·2 answers
  • How can we find velocity?*
    14·1 answer
  • Physics 4
    12·1 answer
  • You are feeling like spaghetti. Although normally only about 2 meters tall, you are now about 25 meters long. (How fortunate, if
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!