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
marusya05 [52]
3 years ago
9

A 6.0-kg block slides from point A down a frictionless curve to point B. After the block passes point B, a friction force oppose

s the motion of the block so that it comes to a stop 2.5 m from B. Calculate the coefficient of kinetic friction between the block and the surface after position B. A. 2.5 B. 0.40

Physics
2 answers:
konstantin123 [22]3 years ago
6 0

Answer: B. 0.40

Explanation:

konstantin123 [22]3 years ago
5 0

Answer:

<em>The coefficient of kinetic friction is 0.40</em>

Explanation:

The work energy theorem played a major role in solving this problem, this is shown in the attached pictures;

You might be interested in
What is the acceleration if a 5 kg cart is pushed with 30 N of force?
sp2606 [1]

Answer:

<h2>6 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a  = \frac{30}{5}  \\

We have the final answer as

<h3>6 m/s²</h3>

Hope this helps you

3 0
3 years ago
Pin p is constrained to move along the curve defined by the lemniscate r=(4sin2θ)ft.if the slotted arm oa rotates counterclockwi
ruslelena [56]

position of the peg is given by the equation

r = 4 sin2\theta

now the rate of change in position is given as

v = \frac{dr}{dt}

v = \frac{d}{dt}(4 sin2\theta)

v = 8cos2\theta*\frac{d\theta}{dt}

v = 8 cos2\theta*\omega

given that

\omega = 1 rad/s

\theta = 59 degree

now we have

v = 8*cos(2*59)* 1 = -3.76 m/s

<em>so its speed will be 3.76 m/s in magnitude</em>

5 0
3 years ago
The ability to navigate, hunt, and communicate by electric current in water most likely helps make up for the effect of dark, mu
fgiga [73]
<span>The ability to navigate, hunt, and communicate by electric current in water most likely helps make up for the effect of vision. The answer to your question is VISION. 

</span>If fish live in a dark, murky water, that means that their sense of vision is affected. In dark, murky water they could not see anything. So, fish that lives in this kind of water developed the ability to <span>o navigate, hunt, and communicate by electric current in water. This ability is known as electroreception. Among fish, electroreception is present in some sharks and rays, and electric eels.</span><span>

I hope that this is the answer that you were looking for and it has helped you.

</span>
6 0
4 years ago
1 A truck covers a distance of 580km in 7 hours - Calculate<br>the velocity in km/hr​
Digiron [165]

Answer:

82.86

Explanation:

to find velocity you displacement by time

3 0
3 years ago
A particle of charge of +3.40 ✕ 10−6 C is 17.5 cm distant from a second particle of charge of −2.00 ✕ 10−6 C. Calculate the magn
Karolina [17]

Answer:

0.47 N

Explanation:

q1 = 3.4 x 10^-6 C

q2 = 2 x 10^-6 C

d = 17.5 cm = 0.175 m

The electrostatic force is given by

F=\frac{Kq_{1}q_{2}}{d^{2}}

F=\frac{9\times10^{9}\times3.4\times 10^{-6}\times 2\times 10^{-6}}{0.175\times 0.175}

F = 0.47 N

Thus, the force is 0.47 N.

5 0
3 years ago
Other questions:
  • A mass spectrograph is used to measure the masses of ions. true or false
    6·1 answer
  • Consider an electromagnetic wave where the electric field of an electromagnetic wave is oscillating along the z-axis and the mag
    9·1 answer
  • Which substances in the simulation have particles that are only atoms?
    8·2 answers
  • A tennis ball is moving at a velocity of +54 m/s before a tennis player returns it with a velocity of -58 m/s. If the ball was i
    8·2 answers
  • Which of the following phrases defines the angle of refraction?
    13·2 answers
  • The color in visible light have different
    7·1 answer
  • Which is a disadvantage of using wind as an energy source? Check all that apply.
    6·2 answers
  • When electrons move closer to a more electronegative atom, what happens?
    12·1 answer
  • A 5 kg projectile is shot with an initial velocity of 8 m/s from a height of 10 meters. If the acceleration due to gravity is 9.
    8·1 answer
  • What happens when a sound wave passes by the particles of a medium?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!