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
Sedbober [7]
3 years ago
7

3

Physics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

The displacement is 6.4m

Explanation:

Step one:

given

we are told that Lucy runs 4 meters to the east,

then 5 meters south.

let the distance east be the displacement in the x-direction, and south be the y-direction

Step two:

The resultant of the x and y displacement is the magnitude of the total displacement z

applying Pythagoras theorem we have

z=√x^2+y^2

z=√4^2+5^2

z=√16+25

z=√41

z=6.4m

You might be interested in
What is the only thing that can change
krok68 [10]

Answer:

Since velocity is a speed and a direction, there are only two ways for you to accelerate

Explanation:

change your speed or change your direction—or change both.

8 0
2 years ago
Read 2 more answers
A playground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about
tankabanditka [31]

Answer:

8050 J

Explanation:

Given:

r = 4.6 m

I = 200 kg m²

F = 26.0 N

t = 15.0 s

First, find the angular acceleration.

∑τ = Iα

Fr = Iα

α = Fr / I

α = (26.0 N) (4.6 m) / (200 kg m²)

α = 0.598 rad/s²

Now you can find the final angular velocity, then use that to find the rotational energy:

ω = αt

ω = (0.598 rad/s²) (15.0 s)

ω = 8.97 rad/s

W = ½ I ω²

W = ½ (200 kg m²) (8.97 rad/s)²

W = 8050 J

Or you can find the angular displacement and find the work done that way:

θ = θ₀ + ω₀ t + ½ αt²

θ = ½ (0.598 rad/s²) (15.0 s)²

θ = 67.3 rad

W = τθ

W = Frθ

W = (26.0 N) (4.6 m) (67.3 rad)

W = 8050 J

6 0
3 years ago
3
Elanso [62]

Answer:

ive got no idea just ask your teacher

7 0
3 years ago
Which of the following statements is TRUE in regards to Signal #2?
Marina CMI [18]

Answer:

2) Signal #2 is a digital signal that transmits signals in segments/intervals.

Explanation:

Signals are form of information propagating from the source to a display unit for appropriate interpretation. It can be either in a digital or analogue form.

A digital signal is a definite signal which is discrete in time and amplitude. It is mostly in the form of codes obtained from set of values. Graphically it transmits in the form of 1 and 0, showing a point of maximum amplitude (1) and minimum amplitude (0).

Analog signal is continuous signal describing the variation of two variables with respect to time.

7 0
3 years ago
I’ll give brainliest!! please help and answer correctly! plsss answer quick
noname [10]

Answer:

i dont think anything will happen so maybe A: the wall is larger than you.

Explanation:

8 0
3 years ago
Other questions:
  • what is the kinetic energy of an object that as a mass of 12 kilograms and moves with the velocity of 10 m/s
    15·1 answer
  • Yeast breaking down starch into usable energy ____________ law of thermodynamics.
    15·2 answers
  • What is the minimum number of vectors lying in the same plane required to givs zero resulant
    9·2 answers
  • A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is
    14·1 answer
  • A simple pendulum, 1.00 m in length, is released from rest when the support string is at an angle of 35.0 from the vertical. Wh
    11·1 answer
  • A coin is resting on the bottom of an empty container. The container is then fi lled to the brim three times, each time with a d
    5·1 answer
  • Area is found by multiplying the length of a surface times the width. If a floor measures 5.28 m2, how many square centimeters d
    10·1 answer
  • What clouds are best associated with thunderstorms?
    5·1 answer
  • A boy climbs 12.0m up an apple tree. He picks an apple and throws it horizontally with a velocity of 3.0 m/s. How far forward do
    13·1 answer
  • Who was the english thinker who established the three laws of motion?.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!