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
Reptile [31]
3 years ago
14

A rubber toy duck is at rest on an inclined plane. When the angle of inclination of the plane is increased to 36.0°, the toy duc

k begins to slide down the incline. Then, when the angle is decreased to 29.0°, the speed of the toy duck is constant. What are the coefficients of static and kinetic friction between the toy duck and the incline?

Physics
1 answer:
ch4aika [34]3 years ago
3 0

Answer

toy begins to slide when the plane is at an angle of 36.0°

at this point the toy has just overcome the static friction

f_s = \mu_s N

f_s = \mu_s mgcos \theta

since toy begins to slide

f_s = mgsin \theta

now on comparing

mgsin \theta = \mu_s mgcos \theta

\mu_s = tan \theta

\mu_s = tan (36^0)

\mu_s = 0.726

as the body is moving at constant velocity acceleration will be zero

so now,

m g sin \theta - f_k = ma

m g sin \theta - \mu_k mg cos\theta = 0

\mu_k = tan \theta

\mu_k = tan (29^0)

\mu_k = 0.554

You might be interested in
If the force of gravity changes what will happen and what would cause it to change?
FromTheMoon [43]
We will fall to pluto.
5 0
3 years ago
The maximum number of orbits in an atom is _____
svp [43]

Correct answer is:

<h2>The maximum number of orbits in an atom is <u>Seven.</u></h2><h3>Explanation:</h3>

Every energy level has a limited one orbital including two electrons. The orbits are settled in the sub-levels and there can be further than 1 sub-level as the number of energy levels rises. On energy level 1, there is 1 sub-level and 1 orbital. Energy level 2 can possess 2 sub-levels and 2 orbitals. These remain to develop as you progress from the nucleus of the atom, closing up with an infinite potential number of levels and orbits.

8 0
3 years ago
Our Sun is a_________ star.
aliina [53]
NAMASTE :)

HERE IS YOUR ANSWER:

Our Sun is a \boxed{high- temperature } star.
5 0
3 years ago
Read 2 more answers
I am looking for this answer :Which shows a correct order of steps in the scientific method?
ELEN [110]

Answer:

Explanation:

make observations, draw conclusions, develop a hypothesis, analyze data.

6 0
3 years ago
Considerable scientific work is currently under way to determine whether weak oscillating magnetic fields such as those found ne
VLD [36.1K]

Answer:

The the maximum emf is 2.52\times10^{-11}\ V

Explanation:

Given that,

Magnetic field B = 1.40\times10^{-3}\ T

Frequency = 60 Hz

Diameter = 7.8 μm

We need to calculate the maximum emf

Using formula of emf

\epsilon=NBA\omega

Where, N = number of turns

B= magnetic field

A = area

Put the value in to the formula

\epsilon=1\times1.40\times10^{-3}\times\pi\times(\dfrac{7.8\times10^{-6}}{2})^2\times2\times\pi\times60

\epsilon=2.52\times10^{-11}\ V

Hence, The the maximum emf is 2.52\times10^{-11}\ V

5 0
3 years ago
Other questions:
  • Will give brainliest to best answer.
    15·1 answer
  • What is unit of pressure
    13·2 answers
  • Nitrogen has a melting point of -210.0°C and a boiling point of -195.8°C. A sample of nitrogen is heated from -215.0°C to -200.0
    6·1 answer
  • A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machi
    14·2 answers
  • When the mass of the bottle is 0.125 kg, the average maximum height of the beanbag is m. When the mass of the bottle is 0.250 kg
    15·1 answer
  • The newest CREE led has a life expectancy of mu = 50000 hours and its life probability density function is given by: f(t) = [e^(
    14·1 answer
  • What are the types of magnet​
    7·1 answer
  • Sunitha can type 1800 words in half an hour. What is her typing speed in words per minute?
    10·1 answer
  • A physics teacher is designing a ballistics event for a science competition. The ceiling is 3.00m high, and the maximum velocity
    12·1 answer
  • Explique ¿por que un objeto que tiene energía es capaz de realizar un trabajo?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!