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
dimaraw [331]
3 years ago
14

Can someone help me?!!!!!

Physics
1 answer:
german3 years ago
3 0
<h2>Hello!</h2>

The answer is:

The first option,  the walker traveled 360m more than the actual distance between the start and the end points.

Why?

Since each block is 180 m long, we need to calculate the vertical and the horizontal distance, in order to calculate how farther did the travel walk between the start and the end points (displacement).

So, calculating we have:

Traveler:

Distance=NorthCoveredDistance+EastCoveredDistance

Distance=4*180m+3*180m=720m+540m=1260m

Actual distance between the start and the end point (displacement):

ActualDistance=\sqrt{NorthDistance+EastDistance}\\\\ActualDistance=\sqrt{NorthDistance^{2} +EastDistance^{2}}\\\\ActualDistance=\sqrt{(720m)^{2} +(540m)^{2}}\\\\ActualDistance=\sqrt{518400m^{2} +291600m^{2}}\\\\ActualDistance=\sqrt{810000m^{2}}=900m

Now, to calculate how much farter did the traveler walk, we need to use the following equation:

DistanceDifference=WalkerCoveredDistance-ActualDistance\\\\DistanceDifference=1260m-900m=360m

Therefore, we have that distance differnce between the distance covered by the walker and the actual distance is 360m.

Hence, we have that the walker traveled 360m more than the actual distance between the start point and the end point.

Have a nice day!

You might be interested in
Joe throws a ball straight down a 100 m building with a velocity of 5 m/s. How long does it take the ball to reach the ground?
Brums [2.3K]
Answer:20s
To find speed we have to divide speed and distance
5=100/?
100/5=20
7 0
3 years ago
What two types of waves are used to detect black holes​
Anastaziya [24]

Answer:

Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. These X-rays can be detected from Earth.

Explanation:

6 0
3 years ago
Read 2 more answers
L. What does it mean to "convert" from one unit to another? Give an example.
TiliK225 [7]

These are four questions and four answers


Question 1. What does it mean to "convert" from one unit to another? Give an example.


Convert from one unit to another is transforming or changing the magnitude to an equivalent measure according to a different pattern of comparison or unit of measure.


For example, converting from meter to centimeters, means to transform the unit of measure (the pattern of comparison) from meter to centimeter.


When your measure is 3 meters, means the length is 3 times the standard pattern named meter.


Therefore, converting it to centimeters means that you want to know how many times is 3 meters relative to the a new pattern named centimeter.


Since, 1 meter equals 100 cm, you build a conversion factor which you can use to make the conversion:


1 m = 100 cm ⇒ 1 = 100 cm / 1 m


∴ 3 m = 3 m × 100 cm / 1 m = 300 cm.


Question 2. What are the general mathematical operations you use when converting from one SI unit to another?


The most common mathematical operations are the basic ones: addition, substraction, multiplication and division.


See one example of each one:


a) Addition:


Transform 20°C to K: 20 + 273.15 K = 293.15 K


b) Subtraction:


Convert 300 K to celsius degrees: 300 - 273.15°C = 26.85°C


c) Multiplication


Convert 1000 Km to meter


1000 Km × 1000 m/Km = 1,000,000 m


d) Division


Convert 1540 mm Hg to atm


1 atm = 760 mmHg ⇒ 1 = 760 mmHg / atm

1540 mmHg / (760 mmHg / atm) = 2.026 atm


Question 3. How many meters do you cover in a 10 km (10-K) race?


This requires to convert 10 km to the equivalent number of meters.


Conversion factor: 1 km = 1000 m ⇒ 1 = 1000 m/Km


∴ 10 Km = 10 Km × 1000 m/km = 10,000 m ← answer.


Quesiton 4. An Olympic swimming pool is 50 meters long. You swim from one end to the other four times.


a. How many meters do you swim?

4 laps × 50 m/lap = 200 m ← answer


b. How many kilometers do you swim?


1 = 1 km / 1000m

200 m = 200 × 1 km / 1000 m = 0.200 km ← answer


c. How many centimeters do you swim?


1 m = 100 cm ⇒ 1 = 100 cm / m

200 m = 200 m × 100 cm/m = 20,000 cm ← answer

5 0
4 years ago
Read 2 more answers
What's the name of a star that does 'not move'?
Arte-miy333 [17]

Answer:

i also don't known ....

7 0
3 years ago
1.si un automovil de 3000 kg se desplaza a 40 m/s su energía cinética es igual a
Mila [183]
The answer for this is b 3.500.000j
6 0
3 years ago
Other questions:
  • An automobile traveling along a straight road increases its speed from 30.0 m/s to 50.0 m/s in a distance of 180 m. If the accel
    9·1 answer
  • A driver is traveling eastward on a dirt road when she spots a pothole ahead. She slows her car from 14.0 m/s to 5.5 m/s in 6.0
    12·1 answer
  • The greek letter (delta) indicates a(n)
    14·1 answer
  • A weightlifter curls a 30 kg bar, raising it each time a distance of 0.50 m .How many times must he repeat this exercise to burn
    7·1 answer
  • When a potassium atom forms an ion, it loses one electron. What is the electrical charge of the potassium ion?
    15·2 answers
  • Two similar objects are moved by two bulldozers. If the work accomplished by bulldozer #2 was three times greater than bulldozer
    8·1 answer
  • Determine the moment of inertia of a uniform solid sphere of mass M and radius R about an axis that is tangent to the surface of
    9·1 answer
  • Which molecule has charges that are free to move around?
    15·1 answer
  • A car accelerates from rest at a rate of 3 m/s² for 4 seconds. How far did the car travel?
    13·2 answers
  • B) Sketch a ray diagram to show how the image
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!