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
mote1985 [20]
3 years ago
10

A box that weighs 5.00×10^2 N is sliding down a ramp at a constant speed. The angle the ramp makes with the horizontal is 25°. W

hat is the coefficient of friction between the box and the ramp?
Physics
1 answer:
maxonik [38]3 years ago
5 0

Answer:

0.466 (3 sig. fig.)

Explanation:

Frictional force acting on the box = 5.00×10^2xsin25

Normal force acting on the box = 5.00×10^2xcos25

coefficient of friction = 0.466 (3 sig. fig.)

You might be interested in
Offenders who are under house arrest may not leave their residences for any reason
WITCHER [35]
This is false. I hope this helps.
6 0
3 years ago
11. Which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? A. Refr
allsm [11]
The Answer is C. Focusing             
4 0
3 years ago
What is the frequency of a photon of emr with a wavelength of 2.55x10-3m?
olga nikolaevna [1]

Answer:

f = 1.18 x 10¹¹ Hz

Explanation:

The equation used to find frequency is:

f = c / w

In this form, "f" represents the frequency (Hz), "c" represents the speed of light (3.0 x 10⁸ m/s), and "w" represents the wavelength (m).

Since you have been given the value of the constant (c) and wavelength, you can substitute these values into the equation to find frequency.

f = c / w                                                      <---- Formula

f = (3.0 x 10⁸ m/s) / w                                 <---- Plug 3.0 x 10⁸ in "c"

f = (3.0 x 10⁸ m/s) / (2.55 x 10⁻³ m)            <---- Plug 2.55 x 10⁻³ in "w"

f = 1.18 x 10¹¹ Hz                                         <---- Divide

3 0
1 year ago
Why are scientific theories modified, but seldom discarded?
scoundrel [369]
Because some scientific theories are true and some are false
5 0
3 years ago
Read 2 more answers
an object of mass m is traveling at constant speed v in a circular path of radius r. how much work is done by the centripetal fo
vlada-n [284]

The work done is by the centripetal force on mass m during an angular displacement of 2π revolutions mv²2π /r J

Centripetal force - a force acts on an moving object in circular path.

the centripetal force is given by

F= mv²/r       (equation1)

Work done is given by

W = Fd          (equation 2)

d = 2π

work is done by the centripetal force on mass m during an angular displacement of 2π revolutions is given by:

to calculate work done using equation 1 in 2  we get

W = mv² d/r

 W = mv² × 2π /r J

The work done is by the centripetal force on mass m during an angular displacement of 2π revolutions mv²2π /r J

To know more about centripetal force :

brainly.com/question/13031430

#SPJ4

6 0
1 year ago
Other questions:
  • Collisions between particles of a gas and the walls of a container cause the ______ in a closed container of gas.
    10·2 answers
  • What force would be needed to make a 10kg bowling ball accelerate down the alleyway with an acceleration of 3m/s2
    6·1 answer
  • The steering wheel is connected to and controls the wheels by the axle.
    9·1 answer
  • A radar station locates a sinking ship at range 17.3 km and bearing 136° clockwise from north. From the same station, a rescue p
    5·1 answer
  • A constant volume perfect gas thermometer indicates a pressure of 6.69 kPaat the triple point of water (273.16 K). (a) What chan
    12·1 answer
  • A 1.2-kg mass is projected from ground level with a velocity of 31.3 m/s at some unknown angle above the horizontal. A short tim
    7·1 answer
  • If the displacement of a horizontal mass-spring system was doubled, the elastic potential energy in the system would change by a
    8·1 answer
  • What causes the random, zig-zag movement (Brownian motion) of smoke particles suspended in air?​
    10·1 answer
  • . A projectile is launched from a cliff 100m above level ground with a velocity of 30m/s at an
    11·1 answer
  • State that there are positive and negative charges.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!