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
user100 [1]
3 years ago
11

True or false? rocks have organic materials and fossil remains in them

Physics
1 answer:
Elina [12.6K]3 years ago
3 0

Answer:

trueeeee

Explanation:

You might be interested in
You wiggle a string,that is fixed to a wall at the other end, creating a sinusoidalwave with a frequency of 2.00 Hz and an ampli
FinnZ [79.3K]

Answer:

Explanation:

A general wave function is given by:

f(x,t)=Acos(kx-\omega t)

A: amplitude of the wave = 0.075m

k: wave number

w: angular frequency

a) You use the following expressions for the calculation of k, w, T and λ:

\omega = 2\pi f=2\pi (2.00Hz)=12.56\frac{rad}{s}

k=\frac{\omega}{v}=\frac{12.56\frac{rad}{s}}{12.0\frac{m}{s}}=1.047\ m^{-1}

T=\frac{1}{f}=\frac{1}{2.00Hz}=0.5s\\\\\lambda=\frac{2\pi}{k}=\frac{2\pi}{1.047m^{-1}}=6m

b) Hence, the wave function is:

f(x,t)=0.075m\ cos((1.047m^{-1})x-(12.56\frac{rad}{s})t)

c) for x=3m you have:

f(3,t)=0.075cos(1.047*3-12.56t)

d) the speed of the medium:

\frac{df}{dt}=\omega Acos(kx-\omega t)\\\\\frac{df}{dt}=(12.56)(1.047)cos(1.047x-12.56t)

you can see the velocity of the medium for example for x = 0:

v=\frac{df}{dt}=13.15cos(12.56t)

7 0
3 years ago
How far will Mr. Woodland’s pet coyote travel in 2 hours at an average speed of 28 km/he
Umnica [9.8K]

Explanation:

no one is that I can get it to you tomorrow at the same time ago i used to

3 0
3 years ago
A sound wave can cause the particles in a medium to vibrate slowly or quickly what is this rate of vibration called?
stealth61 [152]

Answer:

FREQUENCY

Explanation:

3 0
3 years ago
Read 2 more answers
Three wires are made of copper having circular cross sections. Wire 1 has a length l and radius r. Wire 2 has a length l and rad
Alex73 [517]

Explanation:

Below is an attachment containing the solution.

4 0
3 years ago
Explain why astronomers use the term "blueshifted" for objects moving toward us and "redshifted" for objects moving away from us
ValentinkaMS [17]
<span>Two of them are "redshift" and "blueshift", which are used to describe an object'smotion toward or away from us in space. Redshift indicates that an object is moving away from us. "Blueshift" is a term that astronomers use to describe an object that is moving toward another object or toward us.</span>
8 0
3 years ago
Other questions:
  • A 65kg person throw a 0.045kg snowball forward with a ground speed of 30m/s. A second person, with a mass of 60kg, catches the s
    5·1 answer
  • A friction force of 280 N exists between a cart and the path. If the force of reaction is 766 N, what is the minimum action forc
    7·1 answer
  • I need help finding moment
    14·1 answer
  • Which of the following states that all matter tends to "warp" space in its vicinity and that objects react to this warping by ch
    6·1 answer
  • A 50kg box is pulled on by a rope. The rope applies a horizontal force of 180 N to the box. What is the normal force exerted on
    8·1 answer
  • What do lines on a contour map indicate
    7·1 answer
  • There are ___________ of galaxies in the universe containing __________ of stars in each galaxy.
    5·2 answers
  • If a 2.0Ω resistor and a 4.0Ω resistor are connected with a 12 volt battery, what is the total resistance of the circuit?
    12·1 answer
  • 4. A net force of 15 N is exerted on a book to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the
    15·1 answer
  • Alkaid and Merak are 25.6 ∘ apart in the earth's sky. Find the distance in light-years from Alkaid to Merak. Express your answer
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!