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
erastovalidia [21]
2 years ago
13

Now set the tension to low and wiggle the wrench to create more waves. Can you explain how moving the first point on the string,

the one closest to the wrench, affects the next point on the spring? How does this fit with your understanding of the force of a stretched spring?
Physics
2 answers:
IrinaK [193]2 years ago
5 0

Answer:

As the first particle travels upward, it pulls on the next particle, which follows the first particle upward. Then next in line is pulled up in turn, and so on. The motion of each particle follows the one before it, either up or down, with a slight lag in time. This succession of particles moving up or down travels along the string as a wave. Eventually, it pulls every particle along the string up and down in series.

Explanation:

Hatshy [7]2 years ago
4 0

Answer:

When the string moves, it creates a very small change in the distance to the next point, th

Explanation:

When the string moves, it creates a very small change in the distance to the next point, this generates a restoring force that tends to push the string back, this small disturbance propagates along the string and is what creates the pulse.

This is similar to what happens when a spring is stretched and a restoring force is generated shaved by the law of shortening.

            F = k Dx

You might be interested in
g A small car travels up the hill with a speed of v = 0.2 s (m/s) where s is the distance measured from point A in meters. Deter
jasenka [17]

Answer:

The magnitude of the acceleration of the car when s = 50\,m is 2\,\frac{m}{s^{2}}.

Explanation:

The acceleration can be obtained by using the following differential equation:

a = v \cdot \frac{dv}{ds}

Where a, v and s are the acceleration, speed and distance masured in meters per square second, meters per second and meters, respectively.

Given that v = 0.2\cdot s, its first derivative is:

\frac{dv}{ds} = 0.2

The following expression is obtained by replacing each term:

a = 0.2\cdot 0.2\cdot s

a = 0.04\cdot s

The magnitude of the acceleration of the car when s = 50\,m is:

a = 0.04\cdot (50\,m)

a = 2\,\frac{m}{s^{2}}

5 0
3 years ago
2 Points<br> When must scientific theories be changed?
Valentin [98]

Answer:when the two points get added.

Explanation:

8 0
3 years ago
A block has a mass of 20g and meaures 2cm x 4cm x 2cm, will it sink or float
mixer [17]
It will float because the density is less than 1
7 0
3 years ago
Small robots that can move around on the surface of a planet are called space shuttles.
Luden [163]

No.  "Shuttle" has been pretty much used to indicate shuttling
between Earth and Earth-orbit. 

The devices that have tooled around on the surface of Mars
have been referred to as "rovers".  That was also the nickname
of the buggy on which the Apollo astronauts moved around on
the Moon in the early 1970s ... the "lunar rover".

5 0
3 years ago
Math phys can i have help 7-10
Vladimir79 [104]

Answer:

007. 4. 124.091

008. 9. 0.232679738562091

009. 1. 66.8457608738846

010. 3. 14.2 N

Explanation:

007. Speed of a wave is the product of its wavelength and it frequency.

v = λ f

For a given velocity, the minimum frequency occurs at the maximum wavelength.

For a standing wave, the distance between the nodes (fixed points that don't oscillate) is a multiple of half the wavelength.

L = k/2 λ

The wavelength is a maximum at k=1 (also known as the first harmonic).

L = 1/2 λ

λ = 2L

Substituting and solving for f:

v = 2L f

f = v / (2L)

f = 546 m/s / (2 × 2.2 m)

f = 124.091 Hz

008. The sound travels from the dolphin to the ocean floor, then back to the dolphin.  So it travels a total distance of 2 × 178 m = 356 m.  At a speed of 1530 m/s, the time it takes for the sound to travel this distance is:

t = d / v

t = 356 m / 1530 m/s

t = 0.232679738562091 s

009. Sound intensity in decibels is:

I(db) = 10 log(I / I₀)

where I is the sound intensity (W/m²) and I₀ is the threshold of hearing.

We know that the sound intensity I is proportional to the number of cars per minute.  If we say n is the number of cars per minute, and k is the constant of proportionality, then:

I(db) = 10 log(kn / I₀)

When n = 132, I = 73.

73 = 10 log(132k / I₀)

7.3 = log(132k / I₀)

10^7.3 = 132k / I₀

k / I₀ = (10^7.3) / 132

k / I₀ = 151156.236

So the equation for intensity in decibels is:

I(db) = 10 log(151156.236 n)

When n = 32:

I(db) = 10 log(151156.236 × 32)

I(db) = 66.8457608738846

010. For a vibrating string, the tension is:

T = v² m/L

where v is the speed and m/L is the mass per length of the string.

When v = 18.6, T = 6.43.

6.43 = (18.6)² m/L

m/L = 0.01859

So the equation is:

T = 0.01859 v²

When v = 27.6:

T = 0.01859 (27.6)²

T = 14.2 N

4 0
3 years ago
Other questions:
  • A snail crawls 5 inches in 15 minutes. What is its speed in in./min?
    15·1 answer
  • In baseball, the defensive team would be the team up to bat True False
    5·2 answers
  • During a car collision, the knee, thighbone, and hip can sustain a force no greater than 4000 N/ Forces that exceed this amount
    6·1 answer
  • Which of these is NOT a vector quantity?
    6·1 answer
  • A 0.5 kg ball travelling at a velocity of 1 m/s collides with a 1.5 kg ball at rest, calculate the
    8·1 answer
  • If the Lifted Index is positive, is the parcel warmer than, the same temperature as, or cooler than its environment?
    14·1 answer
  • The pitch of a sound wave is its wavelength<br> True or false
    13·2 answers
  • Newtons first law of motion is also called galelios law of_______?
    15·2 answers
  • if a car is accelerating downhill under a net force of 3674 N, what additional force would cause the car to have a constant velo
    10·1 answer
  • 10) For a horizontally launched projectile, decreasing the velocity of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!