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
pogonyaev
3 years ago
9

An object at rest requires a force of 15 Newtons to set it into motion

Physics
1 answer:
goldfiish [28.3K]3 years ago
4 0

Answer:

The force that required an object to move is greater than friction force. The opposite force for an object in motion is the friction force (assuming that the surface where the object lies is rough as most real objects are). This force is needed to be overcome to set the object to motion.

Explanation:

You might be interested in
What layer of atmosphere does planes fly?
Sergeeva-Olga [200]

Answer: stratosphere

The stratosphere is the second to last layer of atmosphere to the Earth. It is about 40,000 feet above, and this is the range where planes fly. So, the answer is stratosphere.

Hope this helps!

4 0
3 years ago
78. A film of oil on water will appear dark when it is very thin, because the path length difference becomes small compared with
Hoochie [10]

To solve this problem it is necessary to apply the concepts related to the condition of path difference for destructive interference between the two reflected waves from the top and bottom of a surface.

Mathematically this expression can be described under the equation

\delta = 2nt

Where

n = Refractive index

t = Thickness

In terms of the wavelength the path difference of the reflected waves can be described as

\delta = \frac{\lambda}{4}

Where

\lambda = Wavelenght

Equation the two equations we have that

2nt = \frac{\lambda}{4}

t = \frac{\lambda}{8n}

Our values are given as

\lambda = 380nm \rightarrow Wavelength of light

n = 1.4

t = \frac{380nm}{8*1.4}

t = 33.93nm

Therefore the minimum thickness of the oil for destructive interference to occur is approximately 34.0 nm

4 0
3 years ago
A person uses a surfboard to ride every 30th wave crest towards the beach. The wave crest travels at a speed of 1.6m/s and the d
pashok25 [27]

Answer:

8

Explanation:

Applying,

v = λf................ Equation 1

Where v = velocity/ speed of the wave, λ = wave length of the wave, f = number of waves the person surf in one seconds.

make f the subject of the equation

f = v/λ............ Equation 2

From the question,

Given: v = 1.6 m/s, λ = 24 m

Substitute these values into equation 2

f = 1.6/24

f = 0.0667 wave/seconds.

If,

in one seconds, the person surf a total wave crest of 0.0667

Therefore,

in one hours, he will surf a total wave crest of (0.0667×60×60) = 240 waves crest

He rides for every 30th wave crest,

Hence,

number of wave crest the person surf in one hour = 240/30 = 8

6 0
3 years ago
Nikola Tesla and Thomas Edison were both pioneers when it came providing electricity to the people. Edison had hired the genius
Pepsi [2]

<u>Explanation:</u>

In other to avoid a situation where their differences, pride, and personalities caused them to compete and publicly insult one another instead of working together they need to respectfully consider the viewpoints of each other, as well as assign individual roles that should be respected.

6 0
3 years ago
She wants to calculate the density of one of these cubes. Blessy needs to measure two physical quantities.
Korvikt [17]

Answer:

Im a filipino kid ya,know

6 0
3 years ago
Other questions:
  • A proton enters a uniform magnetic field of strength 2 T at 300 m/s. The magnetic field is oriented perpendicular to the proton’
    15·1 answer
  • A 282 kg bumper car moving 3.50 m/s collides with a 155 kg bumper car moving -1.38 m/s. Afterwards the 282 kg car moves at 1.10
    14·2 answers
  • 2. Discuss the relationship between electric and magnetic fields.
    15·2 answers
  • What are 5 examples of pseudoscience that can be found on the Internet?
    11·1 answer
  • a passing warm front changes air pressure. does a passing warm front increase or decrease air pressure
    15·2 answers
  • A dog running in an open field has components of velocity vx = 3.1 m/s and vy = -1.3 m/s at time t1 = 11.3 s . For the time inte
    11·1 answer
  • Parallel rays of monochromatic light with wavelength 571nm illuminate two identical slits and produce an interference pattern on
    7·1 answer
  • A dog runs after a car. The car is travelling at an average speed of 5 m/s.
    7·2 answers
  • Which is moving faster a car traveling 150 km in 3 hours or one traveling 100 km in 2 hours?
    11·1 answer
  • A less than youthful 82.6 kg physics professor decides to run the 26.2 mile (42.195 km) Los Angeles Marathon. During his months
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!