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
nordsb [41]
2 years ago
12

What wavelength would a ripple in water have if the frequency is 1.8 Hz and a

Physics
2 answers:
Yuki888 [10]2 years ago
6 0

Explanation:

825m/s / 1.8Hz = 458.33m

Soloha48 [4]2 years ago
4 0

λ=v/f

λ-wavelength

v-speed

f-frequency

λ=825/1.8=458.33m

You might be interested in
It took a crew 9 h 36 min to row 8 km upstream and back again. If the rate of flow of the stream was 2 km/h, what was the rowing
babunello [35]

Answer:

3 km/h

Explanation:

Let's call the rowing speed in still water x, in km/h.

Rowing speed in upstream is: x - 2 km/h

Rowing speed in downstream is: x + 2 km/h

It took a crew 9 h 36 min ( = 9 3/5 = 48/5) to row 8 km upstream and back again. Therefore:

8/(x - 2) + 8/(x + 2) = 48/5      (notice that: time = distance/speed)

Multiplying by x² - 2², which is equivalent to (x-2)*(x+2)

8*(x+2) + 8*(x-2) =  (48/5)*(x² - 4)

Dividing  by 8

(x+2) + (x-2) = (6/5)*(x² - 4)

2*x = (6/5)*x² - 24/5

0 =  (6/5)*x² - 2*x - 24/5

Using quadratic formula

x = \frac{2 \pm \sqrt{(-2)^2 - 4(6/5)(-24/5)}}{2(6/5)}

x = \frac{2 \pm 5.2}{2.4}

x_1 = \frac{2 + 5.2}{2.4}

x_1 = 3

x_2 = \frac{2 - 5.2}{2.4}

x_2 = -1\; 1/3

A negative result has no sense, therefore the rowing speed in still water was 3 km/h

7 0
3 years ago
Q= Which one of the following statement is incorrect?
Lunna [17]

Answer:

A.

Explanation:

I think it might be the big number A

8 0
3 years ago
Which of two factors influence the weight of an object due to gravitational pull?
Tresset [83]
The masses of the object and the planet it's on, and the distance between their centers.
7 0
3 years ago
Read 2 more answers
We know that religion was important to healthcare practices in ancient Egypt the best support this is
Nonamiya [84]
Assuming there are no choices, the answer might be the practice of calling upon gods and goddesses to help the sick.
7 0
3 years ago
A soccer ball is moving horizontally at a speed of 4.0 m/s. It then undergoes a constant acceleration. After 8.00 s, the ball is
CaHeK987 [17]

Answer: 0.0 m/s

Explanation

8 0
3 years ago
Other questions:
  • When the first periodic table of the elements was published, the elements were arranged by atomic mass. Although several element
    8·1 answer
  • 1.5 Kg ball moves in a circle that is 0.4 m radius at a velocity of 5.40 m/s Calculate its centripetal acceleration. *
    5·1 answer
  • Question In picture PLEASE HELP NOW
    10·1 answer
  • Two truckers are traveling directly away from each other at the same speed. If one trucker sounds her horn at a frequency of 221
    12·1 answer
  • qizlet, The concentration of a diluted "wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the wine was diluted by 50x b
    9·1 answer
  • Temperature is perhaps the most important factor in the distribution of organisms because
    12·1 answer
  • A 521-kg meteor is subject to a force of 2520 N. What is its acceleration?
    12·2 answers
  • Which best describes how heat energy moves within a system?
    6·2 answers
  • 1) When making a digital animation of a person running on a sidewalk in a scene, which parameter would be an initial condition?
    10·1 answer
  • A pitching machine throws a 0.148kg baseball to the left at 26m/s. A batter then hits the baseball directly back at 39m/s. What
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!