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
Licemer1 [7]
3 years ago
13

You walk 20 m north then 30 m west for a total timer four minutes what is the magnitude of your average velocity in (m/s)

Physics
1 answer:
Shalnov [3]3 years ago
8 0

Answer:

The average velocity is 0.15 m/s

Explanation:

Use the definition of average velocity as the distance traveled divided the time it took.

Since the movement was on the plane from the origin (0, 0) to the point (-30, 20) corresponding to 30 m west and 20 m north, we calculate the distance using the distance between two points on the plane:

distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} = \sqrt{(-30)^2+20^2} =\sqrt{1300} \approx 36.06\,\,m

Then the magnitude of the average velocity can be estimated via the quotient between distance divided time, but since the units required are meters per second, we first convert the four minute time into seconds: 4 * 60 = 240 seconds.

Then the average velocity becomes:

v_{ave}=\frac{distance}{time} =\frac{36.06}{240} =0.15\,\,m/s

You might be interested in
The logarithm of x, written log(x), tells you the power to which you would raise 10 to get x. So, if y=log(x), then x=10^y. It i
fomenos

To solve this problem it is necessary to apply the rules and concepts related to logarithmic operations.

From the definition of logarithm we know that,

Log_{10}(10) = 1

In this way for the given example we have that a logarithm with base 10 expressed in the problem can be represented as,

log_{10}(1,000,000)

We can express this also as,

log_{10}(10^6)

By properties of the logarithms we know that the logarithm of a power of a number is equal to the product between the exponent of the power and the logarithm of the number.

So this can be expressed as

6*log_{10}(10)

Since the definition of the base logarithm 10 of 10 is equal to 1 then

6*1=6

The value of the given logarithm is equal to 6

8 0
3 years ago
The author s feeling about a subject or topic, which is evidenced in word choice, is called __________. conflict resolution tone
Stels [109]
The author s feeling about a subject or topic, which is evidenced in word choice, is called tone.
6 0
2 years ago
Read 2 more answers
Which type of electromagnetic wave allows you to control your television witha remote control?
Alchen [17]

Electromagnetic wave allows us to control television with a remote control.

This electromagnetic wave is invisible.

Infrared is that electromagnetic wave that is used to control television using remote control.

7 0
1 year ago
A crane lifts a 400 N crate full of baked beans 15 m. How much work was done by the crane?
damaskus [11]

Answer:

6000 J

Explanation:

work = F x S

work = 400 x 15

work = 6000 J

3 0
2 years ago
Which of the following statements is true?
Lilit [14]

A. All natural radiation is at a level low enough to be safe

8 0
3 years ago
Other questions:
  • A wave propagates at a well defined velocity that depends on the properties of the medium that carries the wave. True or false?
    9·1 answer
  • Punnet square to show a cross between two short-haired cats
    7·2 answers
  • The successive ionization energies for an unknown element are listed below. To which family in the periodic table does the unkno
    5·2 answers
  • Acoustics is the study and application of how wildlife navigates at night. true false
    11·1 answer
  • A 1530 kg car moving south at 12.1 m/s collides with a 2560 kg car moving north. The cars stick together and move as a unit afte
    5·1 answer
  • Assuming Luke has a mass of 90Kg how much potential energy does he have just as he leaves the plane 7620 meters up? Explain how
    10·1 answer
  • Match the following examples of energy with the primary form of energy exhibited.
    14·2 answers
  • c) What is moment of inertia? How is it defined (write an equation, explaining all the terms)? What is the parallel axis princip
    9·1 answer
  • A 6.0 cm candle is 30.0 cm from a concave mirror that has a focal length of 11 cm. What is the distance of the image from the mi
    10·1 answer
  • Light of wavelength λ travels through a medium with an index of refraction n1before striking a thin film with an index of refrac
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!