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
ANEK [815]
2 years ago
12

You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h (65 mi/h), and the trip take

s 1 h and 50 min. On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 70 km/h (43 mi/h). How much longer does the trip take?
Physics
1 answer:
valkas [14]2 years ago
3 0

Answer: 2 hr 45 min

Explanation:

Given

The average speed between San Diego and Los Angeles is 105\ kmph

time taken for this trip is  1\ hr\ 50\ min\ or\ \frac{11}{6}\ hr

Distance between San Diego and Los Angeles is

\Rightarrow d=105\times \dfrac{11}{6}\\\\\Rightarrow d=192.5\ km

For Friday afternoon, the average speed is  70\ km/h

time taken to complete the trip is

\Rightarrow t=\dfrac{192.5}{70}\\\\\Rightarrow t=2.75\ hr\ or\ 2\ hr\ 45\ min

You might be interested in
Describe a good level of body fat
m_a_m_a [10]

Answer: a good level of body fat can be found using your weight and height as a reference.

Explanation:

6 0
3 years ago
Jimothy is riding his bike to his friend's house. He decides to see how fast he can go, and starts pedaling as hard as he can. H
german

Answer:

Final velocity, V = 11.5m/s

Explanation:

Given the following data;

Initial velocity, U = 2.5m/s

Acceleration, a = 1.5m/s²

Time, t = 6secs

To find the final velocity, we would use the first equation of motion

V = U + at

Substituting into the equation, we have

V = 2.5 + 1.5*6

V = 2.5 + 9

Final velocity, V = 11.5m/s

6 0
2 years ago
PLEASE ANSWER ASAP!.!.!!.!!!!.!.!.
lbvjy [14]
1. Most PE, because PE is directly proportional to distance (height)
Height: 100 meters
Speed: 0 mph

2. Most KE, because KE is directly proportional to speed
Height: 10 meters
Speed: 40 mph

3. Most TE, average KE
Height: 10 meters
Speed: 40 mph

4. The skater gains thermal energy as she goes down the slope, because the speed of the skater increases, so it increases the total kinetic energy of the particles, and makes them vibrate faster, resulting in a higher temperature.
8 0
2 years ago
[100 POINTS] Which of the following do not make their own energy through nuclear fusion? Select all that apply.
Ksenya-84 [330]

Answer:

The correct answer is :

A . Giant star

B . proto star

F .main sequence star

Explanation:

hope this helps

7 0
3 years ago
Read 2 more answers
A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. How far did t
Furkat [3]
What are your answers?

3 0
3 years ago
Read 2 more answers
Other questions:
  • Choose the word from the drop-down menu that completes each sentence. A/An star system is made of two stars. A/An star system is
    15·2 answers
  • A 25 kg ball is thrown into the air when thrown it's going 10 m/s calculate how high it travels
    7·1 answer
  • Focal length of a concave lens is -7.50 cm , at what distance should an object be placed so that its image is formed 3.70 cm fro
    15·1 answer
  • 9. A sports car travels on a straight road at 22.0 km/h and increases its speed to 57.0 km/h in
    12·1 answer
  • Sociologist use tools such as investigation and data collection to make their study more
    11·1 answer
  • Advantages of hubble law
    5·1 answer
  • Where are the life forms of the biosphere located
    13·1 answer
  • 1. Describe three ways that the transverse waves of the electromagnetic spectrum are used in
    13·1 answer
  • A runner starts slowing down as she gets tired. At 10 seconds, she 8m/a, and slows down to 2m/a at 13 seconds. What is her accel
    13·1 answer
  • What do all waves, including sound and light, have in common​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!