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
zubka84 [21]
3 years ago
5

A plane travels 350 km south along a straight path with an average velocity of 125 km/h to the south. The plane has a 30 minute

layover, and then travels 220 km south with an average velocity of 115 km/h to the south. What is the average velocity for the trip?. a.120 km/hr to the south. b.110 km/hr to the south. c. 121 km/hr to the south. d. need more information
Physics
1 answer:
faust18 [17]3 years ago
6 0
Average Velocity = Total Displacement / Total time

1st part of journey,  350 km at velocity 125 km/h

Time = 350 / 125 = 2.8 hours.

2nd part of journey,  220 km at velocity 115 km/h

Time = 220 / 115 = 1.9 hours


Average Velocity = Total Displacement / Total time

                               = (350 + 220) / (2.8 + 1.9)

                                =   570 / 4.7  ≈ 121.3 km/hr

Average Velocity ≈ 121 km/hr due south. 

Option C. 
You might be interested in
A student is watching waves come in from the ocean. He noticed that the first wave he saw (Wave A) had twice the amplitude of th
Alika [10]

Answer:

Wave A

<em>I</em><em> </em><em>hope this</em><em> </em><em>helps</em><em> </em>

8 0
2 years ago
What is the average time in days between moon phases?.
podryga [215]

Answer:

28

Explanation:

There is a 28 day cycle of the moon phase as it rotates on earths axis.

4 0
2 years ago
while working out a man performed 2525j of work in 19seconds . what was his power A:132.9w. B:241.5w C 47.975w. D100.5w
Olenka [21]
A: 132.9w because 2525\19 is how much energy transferred per second which is also known as the power
7 0
3 years ago
Read 2 more answers
This is an example of using a hammer as a(n)
barxatty [35]

, to hit nails into a piece of wood or a wall, or to break things into pieces.

3 0
3 years ago
Read 2 more answers
Find the ratio of the new/old periods of a pendulum if the pendulum were transported from earth to the moon, where the accelerat
vichka [17]
The period of a pendulum is given by
T=2 \pi  \sqrt{ \frac{L}{g} }
where L is the pendulum length and g is the gravitational acceleration.

We can write down the ratio between the period of the pendulum on the Moon and on Earth by using this formula, and we find:
\frac{T_m}{T_e} =  \frac{2 \pi  \sqrt{ \frac{L}{g_m} } }{2 \pi  \sqrt{ \frac{L}{g_e} } }=    \sqrt{ \frac{g_e}{g_m} }
where the labels m and e refer to "Moon" and "Earth".

Since the gravitational acceleration on Earth is g_e = 9.81 m/s^2 while on the Moon is g_m=1.63 m/s^2, the ratio between the period on the Moon and on Earth is
\frac{T_m}{T_e}= \sqrt{ \frac{g_e}{g_m} }= \sqrt{ \frac{9.81 m/s^2}{1.63 m/s^2} }=2.45

3 0
3 years ago
Other questions:
  • Which is belief held by sociologists who work from a social-conflict perspective
    10·2 answers
  • A 1.30 kg skateboard is coasting along the pavement at a speed of 6.64 m/s when a 0.680 kg cat drops from a tree vertically down
    5·1 answer
  • What is the concentration of OH– ions at a pH = 6?
    5·1 answer
  • Why does cold water sink?
    9·2 answers
  • A bicycle travels 141 m along a circular track of radius 30 m. What is the angular displacement in radians of the bicycle from i
    5·1 answer
  • A machine can multiply forces for
    8·1 answer
  • WILL GIVE BRAINLIEST
    10·1 answer
  • Jack was sitting, reading a book when all of a sudden he felt he was "losing his mind." His heart beat faster and he began to sw
    8·1 answer
  • A plane starts from rest accelerates to 40 m/s in 10 seconds. How far did the plane travel during this time?
    12·1 answer
  • A pendulum is lifted and released, causing the pendulum to oscillate in
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!