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
Sav [38]
3 years ago
15

A wave With wavelength 20 m has a frequency of 12 Hz what is the waves speed

Physics
1 answer:
pentagon [3]3 years ago
7 0

Answer:

240m/s

Explanation:

The equation to calculate is wavelength= velocity/ frequency so to find the velocity you would have to multiply frequency by wavelength.

You might be interested in
Why is it important for scientists to use the scientific method?
Zepler [3.9K]
It is important because if they deviate then they may not achieve accurate measurable results, also so they can document their work.
6 0
3 years ago
Protons are______<br> charged particles.
Verizon [17]

Answer: Protons are positively charged particles

Explanation:

5 0
2 years ago
Read 2 more answers
A Christmas light is made to flash via the discharge of a capacitor. The effective duration of the flash is 0.25 s (which you ca
Sonbull [250]

Answer:

The correct solution is:

(a) 1.375\times 10^{-2} \ J

(b) 4.43\times 10^{-3} \ C

(c) 1.42\times 10^{-3} \ F

(d) 178.57 \ \Omega

Explanation:

The given values are:

Effective duration of the flash,

ζ = 0.25 s

Average power,

P_{avg}=55 \ mW

       =55\times 10^{-3} \ W

Average voltage,

V_{avg}=3.1 \ V

Now,

(a)

⇒ E=P_{avg}\times \zeta

On substituting the values, we get

⇒     =55\times 10^{-3}\times 0.25

⇒     =1.375\times 10^{-2} \ J

(b)

⇒ E=Q\times V_{avg}

then,

⇒ Q=\frac{E}{V_{avg}}

On substituting the values, we get

⇒     =\frac{1.375\times 10^{-2}}{3.1}

⇒     =4.43\times 10^{-3} \ C

(c)

⇒ C=\frac{Q}{V}

⇒     =\frac{4.43\times 10^{-3}}{3.1}

⇒     =1.42\times 10^{-3} \ F

(d)

As we know,

⇒ R=\frac{1}{4C}

⇒     =\frac{1}{4\times 1.42\times 10^{-3}}

⇒     =\frac{1000}{5.6}

⇒     =178.57 \ \Omega

5 0
2 years ago
When you look at green dots with a red filter what color did you see?
Dimas [21]
-- Looking at the dots casually, they look green because they absorb all other
colors of light, and only green light is left to proceed to your eyes. (In order for
this to work, there has to be some green in the light shining on the dots.
Daylight and most light bulbs work fine.)

-- The filter looks red because it absorbs all other colors of light, and only
the red light is left to pass through the filter and come out on the other side.

-- When the green light from the dots hits the red filter, it's absorbed in the
filter, and there's no light left to come out on the other side.

If you're looking through the filter at the dots, they look <em>black</em>.

3 0
3 years ago
Pls reply... plss!! help me​
viktelen [127]

Answer:

this is your solution

Explanation:

Answer-1 Iodine

Answer-2 Uterus

Answer-3 Adam's Apple

Answer-4 Distance

Answer-5 Carbon dioxide

Answer-6 Zygote

7 0
2 years ago
Other questions:
  • un serbatoio d'acqua di forma cilindrica è riempito con acqua dolce fino a un livello di 6,40 m calcola la pressione dell'acqua
    8·1 answer
  • What is the direction of the frictional force? What is the direction of the normal force? How does the frictional force depend o
    6·1 answer
  • What is the spring constant for a supermarket scale that stretches 0.01 m when a force of 4 N is applied
    9·2 answers
  • A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s to move from its highest poin
    13·1 answer
  • (x) A change in position is called:
    13·1 answer
  • A circuit contains a resistor in series with a capacitor, the series combination being connected across the terminals of a batte
    13·1 answer
  • 5. A projectile is fired in Earth's gravitational field with a horizontal velocity of y = 9.00 m/s.
    6·1 answer
  • a train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward velocity of 24 m/s.
    11·1 answer
  • What is the acceleration of a sinking rock if it has a mass of 0.25 kg and has a net force of 0.44 N acting on it?
    7·1 answer
  • - A ball is thrown at a wall 50 meters away. It takes the ball 5 seconds to get to
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!