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
laiz [17]
3 years ago
6

Resuelva el siguiente ejercicio. Un armario de 120 kg descansa sobre una superficie plana, determine la fuerza de rozamiento si

el coeficiente de rozamiento para el cuerpo vale 0,4 y realice un gráfico indicando las fuerzas indicando las fuerzas que actúan el en armario.
Physics
1 answer:
aalyn [17]3 years ago
4 0

Responder:

470.4N

Explicación:

La fuerza de fricción se expresa mediante la fórmula;

Ff = nR

n es el coeficiente de fricción

R es la reacción

R = peso = mg

Ff = nmg

Dado

n = 0,4

masa m = 120kg

g es la aceleración debida a la gravedad = 9,8 m / s²

Sustituir en la fórmula;

Ff = 0,4 (120) (9,8)

Ff = 470,4 N

Por tanto, la fuerza de fricción es 470,4 N

You might be interested in
If sodium has one valence electron and sulfur has six, how many sodium atoms are needed to form an ionic bond with sulfur?
Luden [163]

Answer: two

Explanation:

6 0
3 years ago
Read 2 more answers
What happens to the strength of the magnetic field as you come closer to the current carrying wire
Leokris [45]
Form concentric circles around the wire

6 0
4 years ago
three condensers are connected in series across a 150 volt supply. The voltages across them are 40,50 and 60 volts respectively,
ioda

Explanation:

Given that,

The voltages across them are 40,50 and 60 volts respectively, and the charge on each condenser is 6×10⁻⁸ C.

(a) Capacitance of capacitor 1,

C_1=\dfrac{Q}{V_1}\\\\C_1=\dfrac{6\times 10^{-8}}{40}\\\\C_1=1.5\times 10^{-9}\ F\\\\C_1=1.5\ nF

Capacitance of capacitor 2,

C_2=\dfrac{Q}{V_2}\\\\C_2=\dfrac{6\times 10^{-8}}{50}\\\\C_2=1.2\times 10^{-9}\ F\\\\C_2=1.2\ nF

Capacitance of capacitor 3,

C_3=\dfrac{Q}{V_3}\\\\C_3=\dfrac{6\times 10^{-8}}{60}\\\\C_3=1\times 10^{-9}\ F\\\\C_3=1\ nF

(b) The equivalent capacitance in series combination is :

\dfrac{1}{C}=\dfrac{1}{C_1}+\dfrac{1}{C_2}+\dfrac{1}{C_3}\\\\\dfrac{1}{C}=\dfrac{1}{1.5}+\dfrac{1}{1.2}+\dfrac{1}{1}\\\\C=0.4\ nF

Hence, this is the required solution.

5 0
3 years ago
State the success of j j Thompson model theory​
vovikov84 [41]

Answer:

Thomson's atomic model was successful in explaining the overall neutrality of the atom. However, its propositions were not consistent with the results of later experiments. In 1906, J. J. Thomson was awarded the Nobel Prize in physics for his theories and experiments on electricity conduction by gases.

Summary. J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup."

4 0
3 years ago
Read 2 more answers
Why may some young adults go through a quarter-life crisis?
slavikrds [6]
Stress. Being alone. having nothing
6 0
3 years ago
Other questions:
  • 3. Infer A car is travelling down a
    7·1 answer
  • A worker stands still on a roof sloped at an angle of 35° above the horizontal. He is prevented from slipping by static friction
    14·1 answer
  • Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the pla
    7·1 answer
  • The number of particles in a gas system inversely affects _____ and directly affects _____.
    10·1 answer
  • A velocity selector consists of a uniform electric field of 3.4*10^6 V/m and a uniform magnetic field of 42.0 mT, perpendicular
    15·1 answer
  • Alcohol is being heated on the stove and distillates at 172.4⁰F . What is this temperature on the Celsius degree?
    10·1 answer
  • The si unit of torque ​
    5·1 answer
  • A certain part of a flat screen TV has a thickness of 150 nanometers. How many meters is this?
    8·1 answer
  • Name and Title:
    8·1 answer
  • This graph shows the decomposition of hydrogen peroxide as it is exposed to air. Marty claims that the graph shows that the reac
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!