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
Arada [10]
3 years ago
14

A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 33 N. Starting from rest, the sle

d attains a speed of 1.6 m/s in 9.8 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.
Physics
1 answer:
ycow [4]3 years ago
4 0

Answer:

\mu=0.185

Explanation:

From the question we are told that:

Mass m=17kg

Force F=33N

Velocity v=1.6m/s

Distance d= 9.8m

Generally the equation for Work done is mathematically given by

 W=\triangle K.E+\triangle P.E

Where

 \triangle K.E=(F-F_f)*2

 F_f=F+\frac{\triangle K.E}{d}

 F_f=33+\frac{0.5*17*1.6^2}{9.8}

 F_f=30.8N

Since

 f = \mu*m*g

 \mu= 30.8/(m*g)

 \mu= 30.8/(17*9.81)

 \mu=0.185

You might be interested in
Yaşam alanlarında enerji tasarrufu​
siniylev [52]

(Forgive me if this is wrong I don't speak Turkish)

Enerji tasarrufu nasıl yapılır

Beklemedeki cihazları kapatın.

Akıllı bir termostat takın.

Termostatınızı kısın.

Verimli cihazlar satın alın.

Yeni bir kazan takın.

Giysileri daha düşük sıcaklıkta yıkayın.

Su konusunda daha akıllı olun.

Çift cama yatırım yapın.

4 0
3 years ago
A solid sphere of radius r carries charge q distributed uniformly throughout its volume. find the potential difference from the
erastova [34]

Answer: The potential difference from the sphere's surface to its center is zero.

Explanation:

The expression for the potential difference due to charge is as follows;

\Delta V=\frac{q}{4\pi \epsilon _{0}r}

Here, \Delta V is the potential difference, q is the charge, r is the position and \epsilon _{0}} is the absolute permittivity of free space.

In the given problem, a solid sphere of radius r carries charge q distributed uniformly throughout its volume.

To find the potential difference from the sphere's surface to its center. Put r=0 in the expression of the potential difference.

\Delta V=\frac{q}{4\pi \epsilon _{0}(0)}

\Delta V=0

Therefore, the  potential difference from the sphere's surface to its center is zero.

8 0
3 years ago
Find the current through a 12 ohm resistive circuit when 24 volts is applied
marusya05 [52]

Answer:

2A

Explanation:

Voltage = Current * Resistance

V= I*R

I=V/R

I = 24/12 = 2A.

5 0
4 years ago
an airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a tripto a city 780 km away to th
Vera_Pavlovna [14]
A ) v = 567 - 33 = 534 km/h
     v = d / t    ⇒   t = d / v
     t = 780 km / 534 km/h = 1.46 h 
b ) v = 567 + 33 = 600 km/h
     t = 780 km / 600 km/h = 1.3 h
c ) v = (567² +33²) ^(1/2) = √320,400 = 566 km/h
     t = 780 km/ 566 km/h = 1.378 h
4 0
3 years ago
Light undergoes refraction as it travels from water to glass. The refractive index of water = 1.33 and refractive index of glass
cestrela7 [59]

Answer: 28°

Explanation:

Snell's law  n₁sinθ₁ = n₂sinθ₂

1.33sin32 = 1.5sinθ₂

θ₂ =28°

3 0
3 years ago
Other questions:
  • Predict what happens when glucose levels are high in the humms body
    10·1 answer
  • A comet is in an elliptical orbit around the sun. its closest approach to the sun is a distance of 4.5 1010 m (inside the orbit
    11·1 answer
  • To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the co
    5·1 answer
  • A binary star system consists of two stars of masses m1 and m2. The stars, which gravitationally attract each other, revolve aro
    12·1 answer
  • The stage of development was from birth to around 2.
    10·1 answer
  • When a pendulum swings if not continuously pushed it will stop eventually because some of its energy is changef into what energy
    11·2 answers
  • A resistor and an inductor are connected in series to a battery. The battery is suddenly removed from the circuit. The time cons
    13·2 answers
  • 1. What are the approximate calorie needs of a
    6·1 answer
  • If a wave has a wavelength of 10 m and a speed of 2.5×108 m/s (this is 250000000 m/s) what is the frequency of the wave?
    7·1 answer
  • According to Boyle's Law, if the temperature of a gas stays constant, when
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!