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
Mashutka [201]
3 years ago
6

Help me please I’m begging u!!

Physics
1 answer:
Yakvenalex [24]3 years ago
7 0
The speed of a wave, c, is given by the length of the wave, λ, times the frequency (times per second a cycle passes).  Since frequency has units of inverse seconds, the units will then be m/s as we expect.
c= \lambda f=2m * 140Hz=280m/s
You might be interested in
To halt the decline in biodiversity, we must do which of the following?
emmainna [20.7K]
<span>adopt ecological conservation practices </span>
6 0
3 years ago
A coin released at rest from the top of a tower hits the ground after falling 5.7 s. What is the speed of the coin as it hits th
Bad White [126]

Given parameters:

Initial velocity of Coin = 0m/s

Time taken before coin hits ground  = 5.7s

Unknown:

Final velocity of the coin  = ?

Velocity is displacement with time. To solve this problem, we have to apply one of the equations of motion.

The fitting one of them here is shown below;

             V = U + gt

where;

V is the final velocity

U is the initial velocity

g is the acceleration due to gravity

t is the time taken

Here we use positive value of acceleration due to gravity because the coin is falling with the effect of acceleration and not against it.

Now input the parameters and solve;

               V  = 0 + 9.81 x 5.7

               V = 55.917m/s

Therefore, the final velocity is 55.917m/s.

8 0
3 years ago
Which statement is correct? When a positively charged atom looses an electron to a positively charged atom, two neutral atoms ar
vazorg [7]
I believe the answer is "When a neutral atom looses an electron to another neutral atom, two charged atoms are created."
3 0
3 years ago
Read 2 more answers
HELP ASAP!! i’ll mark you the brainliest!!
Triss [41]

Answer:

yes

Explanation:

6 0
3 years ago
The "Garbage Project" at the University of Arizona reports that the amount of paper discarded by households per week is normally
Lorico [155]

Answer:

54%

Explanation:

We are given that

S.D=4.2 lb

Mean=\mu=9.4 lb

We have to find the percentage of household throw out at least 9 lb of paper  a week.

Normal distribution formula :

P(X\geq a)=P(z\geq \frac{a-\mu}{\sigma})

We have a=9

P(X\geq 9)=P(z\geq \frac{9-9.4}{4.2})=P(z\geq -0.1)

P(X\geq 9)=1-P(z

P(X\geq 9)=1-0.4602=0.5398\times 100=54%

Hence, the  percentage of household throw out at least of paper a week=54%

7 0
3 years ago
Other questions:
  • The force exerted by electrically changed objects
    8·1 answer
  • A wooden block has a mass of 20.0 kg and a specific heat of 1700 J/kg °C. Find the change in thermal energy of the block as it w
    10·1 answer
  • Which of Newton's Three Laws does the following statement satisfy?
    6·2 answers
  • A bowling ball is dropped from a height of 24 feet.
    15·1 answer
  • The muzzle velocity of an armor-piercing round fired from an M1A1 tank is 1770 m/s (nearly 4000 mph or mach 5.2). A tank is at t
    7·1 answer
  • What equation gives the position at a specific time for an object with constant acceleration?
    6·1 answer
  • The force of air particles over an area is?
    11·2 answers
  • A boy in a wheelchair (total mass 54.5 kg) has speed 1.40 m/s at the crest of a slope 2.10 m high and 12.4 m long. At the bottom
    8·1 answer
  • An object is placed at 1.5 m from a convex lens with a focal length of 1.0 m.
    8·1 answer
  • the sun is one hundred and fifty million kilometers away from earth write this in scientific notation​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!