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
PtichkaEL [24]
3 years ago
7

You are hungry and decide to go to your favorite neighborhood fast-food restaurant. You leave your apartment and take the elevat

or 10 flights down (each flight is 3.0 m) and then go 15 m south to the apartment exit. You then proceed 0.2 km east, turn north, and go 0.1 km to the entrance of the restaurant.
Part A

Determine the displacement from your apartment to the restaurant. Use unit vector notation for your answer, being sure to make clear your choice of coordinates.

Take the beginning of the journey as the origin, with north being the y-direction, east the x-direction, and the z-axis vertical.

Part B

How far did you travel along the path you took from your apartment to the restaurant?

Part C

What is the magnitude of the displacement you calculated in part
Physics
1 answer:
Viktor [21]3 years ago
7 0

Answer:

A)  R = (200 i ^ + 100 j ^ + 30k ^) m , B)    L = 223.61 m , C)   R = 225.61 m

Explanation:

Part A

This is a vector summing exercise, let's take a Reference System where the z axis corresponds to the height (flights), the x axis is the East - West and the y axis corresponds to the North - South.

Let's write the displacements

Descending from the apartment

10 flights of 3 m each, the total descent is 30 m

                Z = 30 k ^ m

Offset at street level

            L1 = 0.2 i ^ km

            L2 = 0.1 j ^ km

Let's reduce everything to the SI system

          L1 = 0.2 * 1000 = 200 i ^ m

          L2 = 100 j ^ m

The distance traveled is

          R = (200 i ^ + 100 j ^ + 30k ^) m

Part B

The horizontal distance traveled can be found with the Pythagorean theorem for the coordinates in the plane

                L² = x² + y²

                L = √ (200² + 100²)

                L = 223.61 m

Part C

The magnitude of travel, let's use the Pythagorean theorem for the sum

             R² = x² + y² + z²

              R = √ (30² + 200² + 100²)

             R = 225.61 m

You might be interested in
Which is the most likely location in the home for mold growth? A) bathroom windows B) living room furniture C) computer keyboard
FinnZ [79.3K]

Answer:

A

Explanation:

3 0
3 years ago
Read 2 more answers
A ball is kicked at an angle of 35 degrees with the ground. What should be the initial velocity of the ball so that it hits a ta
pashok25 [27]

Answer:

18.5 M/S

Explanation:

trust me

6 0
3 years ago
The mechanical advantage of an inclined plane can be increased by increasing the ramp's _____. slope length friction height
artcher [175]

Answer:

height is the answer i'm pretty sure.  

Explanation:

8 0
4 years ago
Brownian motion is due to:
My name is Ann [436]

Answer:

b

Explanation:

Brownian motion is the random movement of particles in a fluid due to their collisions with other atoms or molecules. ... Brownian motion takes its name from the Scottish botanist Robert Brown, who observed pollen grains moving randomly in water. He described the motion in 1827 but was unable to explain it.

8 0
3 years ago
A woman is sitting in her hotel room when there is a knock at the door. She opened the door to see a man whom she had never seen
Allisa [31]
Ooh. You don't knock on your own hotel door- <span> a knock at the door is your key word.
</span>x
5 0
3 years ago
Read 2 more answers
Other questions:
  • A ball is dropped out of a window and falls for 8.75 s. What is the ball's final velocity?
    13·1 answer
  • At what distance must a star be to have its apparent magnitude equal to its absolute magnitude?
    15·1 answer
  • When and why was the metric system invented?
    10·1 answer
  • How does the electrostatic force compare with the strong nuclear force in the nucleus of an atom?
    5·2 answers
  • A 100 kg father and his 50 kg daughter stand on ice skates on a frozen pond. The daughter pushes on her father with a force of 5
    9·2 answers
  • A tuning fork vibrating in water with a frequency of 840 Hz produces waves that are 2.5 m long. If a tuning fork vibrating at 50
    15·1 answer
  • A gas is enclosed in a confainer fitted with a piston of cross sectional area 0.10 the pressureof the gas is maintained in 8000
    9·1 answer
  • hii, just wondering how to solve this? it’s simple scientific notation but my brain just isn’t functioning today so it’s be help
    8·1 answer
  • Pressure due to a heel of the pointed shoe is greater than the pressure of the elphant legs​
    11·1 answer
  • Resolve the vector shown below into its components.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!