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
Stolb23 [73]
3 years ago
12

Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0mph and half the

distance at 65.0 . On her return trip, she drives half the time at 44.0mph and half the time at 65.0mph .
1)What is Julie's average speed on the way to Grandmother's house?

2)What is her average speed on the return trip?



*Express your answer with the appropriate units.
Physics
1 answer:
sashaice [31]3 years ago
4 0

Answer:

52.47706 mph

54.5 mph

Explanation:

The average speed is given by

V_{av}=\dfrac{Distance}{Time}

V_{av}=\dfrac{100}{\dfrac{50}{44}+\dfrac{50}{65}}\\\Rightarrow V_{av}=52.47706\ mph

Julie's average speed on the way to Grandmother's house is 52.47706 mph

V_{av}=\dfrac{44+65}{2}\\\Rightarrow V_{av}=54.5\ mph

Average speed on the return trip is 54.5 mph

You might be interested in
If the Earth and distant stars were stationary (motionless) in space, what would we observe about the wavelength from these star
torisob [31]
There's no such thing as "stationary in space".  But if the distance
between the Earth and some stars is not changing, then (A) w<span>avelengths
measured here would match the actual wavelengths emitted from these
stars. </span><span>

</span><span>If a star is moving toward us in space, then (A) Wavelengths measured
would be shorter than the actual wavelengths emitted from that star.

</span>In order to decide what's actually happening, and how that star is moving, 
the trick is:  How do we know the actual wavelengths the star emitted ?


 
7 0
3 years ago
This mutation blank alter the protein function
mariarad [96]

Answer:

magsagot kau ng inyo wag kau mag hanap tseee hahahahhahahahahabababab

4 0
2 years ago
What can we say about Gamma waves on<br> the electromagnetic spectrum?
sladkih [1.3K]

Answer: Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are generated by radioactive atoms and in nuclear explosions. Gamma-rays can kill living cells, a fact which medicine uses to its advantage, using gamma-rays to kill cancerous cells.

Explanation: :)

6 0
2 years ago
At which location would you expect the LOWEST TEMPERATURE?
MissTica

Answer:

c

Explanation:

3 0
2 years ago
Read 2 more answers
Which statement correctly describes the motion of water particles due to the action of waves?
tensa zangetsu [6.8K]

Answer:

C True.  they rise and fall in a circular motion

Explanation:

The movement of water waves in the sea is described by a simple harmonic movement where the water droplets, which are the material particles of the movement oscillate up and down and the wave that is the energy of the movement travels perpendicular to it.

With this let's review the claims

A False

B False

C True.

D False

4 0
3 years ago
Other questions:
  • PLEASSE HELP WILL MARK BRAINLIEST!!!!!!!!!!
    15·1 answer
  • A circuit is built based on this circuit diagram. What is the equivalent resistance of the circuit?
    6·1 answer
  • The following graph shows the rates of decay for four parent isotopes. Based on the graph, which parent isotope most likely has
    11·2 answers
  • Do your relationships tend to have this quality?
    7·2 answers
  • Listed following are three possible models for the long-term expansion (and possible contraction) of the universe in the absence
    5·1 answer
  • What’s the voltage of a battery in a circuit with resistance of 3 ohms and current of 5 amps?
    10·1 answer
  • Which of the following is contact force
    8·1 answer
  • A: How far did she travel? <br><br><br><br> B: How long did she take?
    12·1 answer
  • Explain why the water that is used to cool the reactor vessel of a nuclear power plant is kept separate from the water that is h
    15·1 answer
  • Which is the best example of tropism in plants?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!