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
bonufazy [111]
3 years ago
15

(a) when rebuilding her car's engine, a physics major must exert 300 n of force to insert a dry steel piston into a steel cylind

er. what is the magnitude of the normal force between the piston and cylinder? (b) what is the magnitude of the force would she have to exert if the steel parts were oiled?
Physics
1 answer:
Vilka [71]3 years ago
8 0
There are some missing data in the text of the problem. I've found them online:
a) coefficient of friction dry steel piston - steel cilinder: 0.3
b) coefficient of friction with oil in between the surfaces: 0.03

Solution:
a) The force F applied by the person (300 N) must be at least equal to the frictional force, given by:
F_f = \mu N
where \mu is the coefficient of friction, while N is the normal force. So we have:
F=\mu N
since we know that F=300 N and \mu=0.3, we can find N, the magnitude of the normal force:
N= \frac{F}{\mu}= \frac{300 N}{0.3}=1000 N

b) The problem is identical to that of the first part; however, this time the coefficienct of friction is \mu=0.03 due to the presence of the oil. Therefore, we have:
N= \frac{F}{\mu}= \frac{300 N}{0.03}=10000 N
You might be interested in
When driving at night, only use your high-beam headlights___
zzz [600]

Answer:

B

Explanation:

While answer C may sound correct, Answer B is makes more sense. We know you cant use High-beam lights when u cant see ongoing traffic because it could affect the other driver coming across from you. Its good to use it when legal and safe, but in that term I still don't believe there's no reason for HIGH-beamed. That's this leaves B, when you are on u lighted streets.

6 0
2 years ago
Plants appear green because they do not absorb the green wavelengths of light what happens to those green light waves when they
Arlecino [84]
The green wavelengths are reflected, causing green to be the only color we see in certain parts of plants.

Best of luck, my man.
4 0
3 years ago
Read 2 more answers
A force of 150 N is used to push a motorcycle 10 m along a road in 20 s.
Grace [21]

Answer:

beuhhhhhhhghhhhhhhhhhh

7 0
2 years ago
Which sequence lists the water cycle in order? A) condensation, evaporation, runoff/storage, precipitation B) evaporation, conde
faust18 [17]
The answer is B) evaporation,condensation, precipitation, runoff/storage
7 0
3 years ago
Read 2 more answers
I need help with these four problems.. anyone??
babunello [35]
1) 14g
2) 24 fl oz
3)10 cups
4)12 and 1/2 cups
8 0
3 years ago
Other questions:
  • What information is given by the formula of an ionic compound?
    5·1 answer
  • 9. Since current is the rate at which charge is flowing, if the current in the circuit decreases, what does that mean about the
    11·1 answer
  • What part causes the disc brake caliper piston to retract when the brakes are released?
    13·1 answer
  • True or False an overtone occurs when two or more sound waves are produced at the same time.
    9·2 answers
  • In a lab, four balls have the same velocities but different masses.
    6·2 answers
  • The resolving power of electron microscopes is much better than the resolving power of light microscopes because the wavelength
    11·1 answer
  • The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas
    6·1 answer
  • An electron is a particle with a ____.
    13·2 answers
  • The different in size of each of the rope's pullers, correspond to a difference in the magnitude of the applied force, such that
    7·1 answer
  • What does a polar molecule mean?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!