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
HACTEHA [7]
3 years ago
6

What is the frequency of a wave that has a wavelength of 20 cm and a speed of 10 m/s?

Physics
1 answer:
Inga [223]3 years ago
3 0
Frequency = velocity/wavelength

Frequency = 10/20

Frequency = 0.5 Hz
You might be interested in
Photovoltaic energy is the conversion of _________ into electricity through a photovoltaic cell. A) sunlight B) hydropower C) wi
Aleks04 [339]
The answer is A) sunlight
8 0
2 years ago
Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?
Flura [38]

Answer:

TO answer this question i need wave speed

Explanation:

4 0
1 year ago
Describe how the gravitational force between 2 objects depends on the mass of the objects and the distance between them. your an
ollegr [7]
The strength of the gravitational force between two objects depends<span> on </span>two<span>factors, </span>mass<span> and </span>distance<span>. the </span>force<span> of gravity the </span>masses<span> exert on each other. If one of the </span>masses<span> is doubled, the </span>force<span> of gravity </span>between<span> the </span>objects<span> is doubled. increases, the </span>force<span> of gravity decreases</span>
3 0
3 years ago
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial spe
sattari [20]
I can't make sense of this question. Julie's throwing the ball, so it's leaving her rather than arriving at her ???
3 0
2 years ago
Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 23.5 m above water wit
Elodia [21]

As stated in the statement, we will apply energy conservation to solve this problem.

From this concept we know that the kinetic energy gained is equivalent to the potential energy lost and vice versa. Mathematically said equilibrium can be expressed as

\Delta KE = \Delta PE

\frac{1}{2}mv_f^2-\frac{1}{2} mv_0^2 = mgh_2-mgh_1

Where,

m = mass

v_{f,i} = initial and final velocity

g = Gravity

h = height

As the mass is tHe same and the final height is zero we have that the expression is now:

\frac{1}{2}v_f^2-\frac{1}{2} v_0^2 = gh_2

\frac{1}{2} (v_f^2-v_0^2) = gh_2

(v_f^2-v_0^2) = 2gh_2

v_f = \sqrt{2gh_2+v_0^2}

v_f = \sqrt{2(9.8)(23.5)+13.6^2}

v_f = 25.4m/s

7 0
3 years ago
Other questions:
  • Which of the following illustrations show atoms of the same element?
    6·1 answer
  • In what ways does energy transform or convert from one form to another?
    12·1 answer
  • 6 A solid weighth 20 gf in air and 18gt in water-find the specitic gravily of the<br><br>solid?​
    13·1 answer
  • An IGCSE student thinks it may be possible to identify different rocks (A, B and C) by measuring their
    11·1 answer
  • For communication to take place, there has to be:
    15·1 answer
  • "a horn emits a frequency of 1000 HZ. A 14 m/s wind is blowing toward a listener. What is the frequency of the sound heard by th
    14·1 answer
  • Which of these waves moves the fastest? <br> a. sound <br> b. radio <br> c. ocean <br> d. seismic
    5·2 answers
  • The door is 3.00 m tall and 1.25 m wide, and it weighs 750 N . You can ignore the friction at the hinges. If Exena applies a for
    5·1 answer
  • True or false question scientists can predict when an earthquake will occur
    7·1 answer
  • Bethany feels as though she cannot enjoy flowers properly, as she has lost her sense of smell. Bethany has _______
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!