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
GrogVix [38]
3 years ago
10

What is the work behind these answers?

Physics
1 answer:
Sati [7]3 years ago
7 0
I think you need to solve them
You might be interested in
What is the period of a soundwave whose wavelength is 20.0 m? Use values from the book and show ALL of your work.
Liono4ka [1.6K]
<h3><u>Answer;</u></h3>

Period = 1/17 seconds

<h3><u>Explanation;</u></h3>
  • Wavelength is related to period by the expression:

<em>speed = wavelength / period </em>

  • If we are given the speed, then we can easily calculate the period at the wavelength of 20 m.

<em>Given the speed of sound wave as 340 m/s </em>

<em>Period = Wavelength/ speed</em>

<em>            = 20 m/340 m/s</em>

<em>            </em><u><em>= 1/17 seconds</em></u>

7 0
3 years ago
Calculate the force needed to accelerate a car of a mass 1000 kg by 3 m/s2
beks73 [17]

Answer:

<h2>3000 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 1000 × 3

We have the final answer as

<h3>3000 N</h3>

Hope this helps you

5 0
3 years ago
Assuming that the hill on the left will provide all of the potential energy for the ride, would this roller coaster actually mak
trapecia [35]
Yes I believe it would I think the answer is D
3 0
3 years ago
A sailor strikes the side of his ship just below the waterline. He hears the echo of the sound reflected from the ocean floor di
Marrrta [24]

Answer:

2625 m deep

Explanation:

Let the sound speed in sea water be 1500 m/s. If he hears the echo 3.5s after the strike, then the sound would have traveled a distance of 1500 * 3.5 = 5250 m to the bottom and back. This would mean the ocean is 5250 / 2 = 2625 m deep.

5 0
3 years ago
Dadas dos sustancias con distinta densidad, las cuales se mezclan, formarán una nueva sustancia con una densidad.....
zhannawk [14.2K]

Answer:

Explanation:

Equal to the sum of the densities of both substances

Equal to the sum of the densities of both substances

Equal to the difference in the densities of both substances

Equal to the difference in the densities of both substances

of which I cannot predict anything about its value

of which I cannot predict anything about its value

of an intermediate value to both substances which will depend on which substance is in greater quantity

of an intermediate value to both substances which will depend on which substance is in greater quantity

8 0
2 years ago
Other questions:
  • The position of a particle moving along a coordinate line is s equals StartRoot 76 plus 6 t EndRoot​, with s in meters and t in
    12·1 answer
  • 4. A tankful of liquid has a volume<br>of 0.2m3. What is the volume in (a)<br>lities (b) cm3 (c)ml​
    6·1 answer
  • If you have 500 g of water at 25oc and wish to heat it to 74o c, what is the specific heat of water
    14·1 answer
  • In a microwave oven, electrons describe circular motion in a magnetic field within a special tube called amagnetron; as you'll l
    5·1 answer
  • The primary colors of light are?
    10·2 answers
  • What is the reactance of a capacitor at a 8.0 μF frequency of 56.0 Hz?
    5·1 answer
  • Solve the current and voltage problems for the ci
    6·2 answers
  • How does a sound wave transfer energy to your ears?
    12·1 answer
  • What is the force when an object exerts 15 pascal pressure on a square surface of side 5 meters
    6·1 answer
  • Can a magnet attract a pure substance?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!