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
andre [41]
3 years ago
5

A given wave has a wavelength of 1.4 m and a frequency of 2.0 Hz. How fast

Physics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

The wave speed is 2.8 m.

Explanation:

Wavelength = 1.4 m

frequency, f = 2 Hz

the wave speed is given by

wave speed = wavelength x frequency

wave speed = 1.4 x 2 = 2.8 m

option (D) is correct.  

You might be interested in
In the stream, water waves bunched up as the water flowed by. As we
Paladinen [302]
Yea it would be barrier. since the stream has a cover for the water
7 0
3 years ago
a steam engine works on its vicinity and 285 k heat is released with the help of 225 degree centigrade energy absorbed to the sy
Studentka2010 [4]

The efficiency of the steam engine is 78.9%.

<h3>What is the efficiency of a machine?</h3>

The efficiency of a machine is a measure of the useful work done by the machine as against the work input into the machine.

  • Efficiency of a machine = work output/work input × 100%

Work output of the steam engine = 225 K

Work input of the steam engine = 285 K

The efficiency of the machine = 225/275 × 100% = 78.9%

Therefore, the efficiency of the steam engine is 78.9%.

Leran more about efficiency of machines at: brainly.com/question/7536036

#SPJ1

7 0
2 years ago
The Palo Verde nuclear power generator of Arizona has three reactors that have a combined generating capacity of 3.937×109 W . H
den301095 [7]

Answer:

t = 2.68 x 10¹⁴ years

Explanation:

First we need to find the amount of energy that Sun produce in one day.

Energy = Power * Time

Energy of Sun in 1 day = (3.839 x 10²⁶ W)(1 day)(24 hr/1 day)(3600 s/ 1 hr)

Energy of Sun in 1 day = 3.32 x 10³¹ J

Now, the time required by the nuclear power generator, in years, will be:

Energy of power generator = Energy Sun in 1 day = 3.32 x 10³¹ J

3.32 x 10³¹ J = Power * Time

3.32 x 10³¹ J = (3.937 x 10⁹ W)(t years)(365 days/1 year)(24 hr/1 day)(3600 s/ 1 hr)

t = 3.32 x 10³¹ /1.24 x 10¹⁷

<u>t = 2.68 x 10¹⁴ years</u>

8 0
3 years ago
Explain the relationship of charles law to absolute zero
vivado [14]
Chalres law and absolute zero . in 1780s, by experiments
8 0
3 years ago
Waves of energy in the electromagnetic spectrum travel through space and into the earths atmosphere. Which waves pass more crest
andrew-mc [135]
The answer is D.......
3 0
3 years ago
Other questions:
  • The sun radiates energy. Does the earth similarly radiate energy? If so, why can’t we see the radiant energy from the earth?
    11·1 answer
  • A large truck and a compct car are both driving down the
    15·1 answer
  • Ahmed kept a balloon from his birthday for several days until it began to deflate and slowly sink to the ground. He wondered how
    8·2 answers
  • While out hiking, you and your buddy decide to have some fun with the rocks laying all around. While sitting on a high cliff, ov
    10·1 answer
  • At t=0, an object of mass m is at rest at x=0 on a horizontal, frictionless surface. A horizontal force Fx=F0 (1−t/T), which dec
    15·1 answer
  • Brody, The dog, is sitting at your feet like a good boy. You throw a dog toy away from you at a speed of 34 m/s (assume constant
    6·1 answer
  • 300 grams of ethanol is heated with 14640 Joules of energy to reach a final temperature of 30 °C. What was the initial temperatu
    11·2 answers
  • How does a battery supply electrical energy to a circuit?
    11·2 answers
  • A compact disk with a 12 cm diameter is rotating at 5.24 rad/s.
    11·1 answer
  • Give an example of how a bicycle rider would accelerate? Explain the three different ways a bicyclist could
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!