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
IgorLugansk [536]
3 years ago
9

A magnetic pickup is used to detect the shaft speed of an experimental high speed compressor. a gear with 12 teeth is used to ex

cite the sensor. if the shaft is turning at 18,000 rpm, how many positive pulses will be created per second?
Physics
2 answers:
Harlamova29_29 [7]3 years ago
8 0
The answer is 39 seconds.

Hope this helps!! ;))
Have a grat day!! <3
worty [1.4K]3 years ago
5 0
The answer would be 39 seconds
You might be interested in
What is the mass of an object if a force of 2N and gives it an acceleration of 2 m/s2​
tino4ka555 [31]

Answer:

1kg

Explanation:

Use the formula

F=ma

m=F/a

m=2N/2m/s^2

m=1kg

6 0
2 years ago
I need this right ASAP!!! plz plz plz
UkoKoshka [18]

Answer:

The answer is D

Nucleus is neutral

8 0
3 years ago
Read 2 more answers
Tracy scuffs her socked feet across a carpet. When she touches a doorknob, she gets a small shock.
lubasha [3.4K]

I believe the answer would be B.

6 0
3 years ago
Read 2 more answers
You are sitting on a merry-go-round of mass 200 kg and radius 2m that is at rest (not spinning). Your mass is 50 kg. Your friend
Bogdan [553]

Answer:

a.\tau=200J b.\alpha=0.44 \frac{rad}{s^2} c. \alpha=0.33\frac{rad}{s^2} d. The angular acceleration when sitting in the middle is larger.

Explanation:

a. The magnitude of the torque is given by \tau=rF\sin \theta, being r the radius, F the force aplied and \theta the angle between the vector force and the vector radius. Since \theta=90^{\circ}, \, \sin\theta=1 and so \tau=rF=2m100N=200Nm=200J.

b. Since the relation \tau=I\alpha hols, being I the moment of inertia, the angular acceleration can be calculated by \alpha=\frac{\tau}{I}. Since we have already calculated the torque, all left is calculate the moment of inertia. The moment of inertia of a solid disk rotating about an axis that passes through its center is I=\frac{1}{2}Mr^2, being M the mass of the disk. If we assume that a person has a punctual mass, the moment of inertia of a person would be given by I_p=m_pr_p^{2}, being m_p the mass of the person and r_p^{2} the distance from the person to the center. Given all of this, we have

\alpha=\frac{\tau}{I}=\frac{\tau}{I_{disk}+I_{person}}=\frac{Fr}{\frac{1}{2}Mr^2+m_pr_p^{2}}=\frac{200Nm}{\frac{1}{2}200kg*4m^2+50kg*1m^2}=\frac{200\frac{kgm^2}{s^2}}{450Nm^2}\approx 0.44\frac{rad}{s^2}.

c. Similar equation to b, but changing r_p=2m, so

alpha=\dfrac{200\frac{kgm^2}{s^2}}{\frac{1}{2}200*4kg\,m^2+50*4 kg\,m^2}=\dfrac{200}{600}\dfrac{1}{s^2}\approx 0.33 \frac{rad}{s^2}.

d. The angular acceleration when sitting in the middle is larger because the moment of inertia of the person is smaller, meaning that the person has less inertia to rotate.

5 0
3 years ago
The number of electrons in an element with atomic number 20 is
Alex787 [66]

Answer:

the answer is calcium....

5 0
3 years ago
Read 2 more answers
Other questions:
  • Tell the value of the underlined digit 843,208,732,833 eight is underlined
    12·2 answers
  • A student is preparing to bake a cake at home and places several ingredients on the countertop to use. First he preheats the ove
    11·1 answer
  • Identify the mathematical relationship that exists between pressure and volume, when temperature and quantity are held constant,
    13·1 answer
  • If two organisms evolve in response to each other, which evolutionary pattern is demonstrated
    7·2 answers
  • If mechanical energy is conserved in a system the energy at any point in time can be in the form of
    11·1 answer
  • A bicyclist of mass 60kg supplies 340W of power while riding into a 5 m/s head wind. The frontal area of the cyclist and bicycle
    13·1 answer
  • 2. What is one reason why the author includes information about religious beliefs during the time of Johannes Fabricius' discove
    15·1 answer
  • Two horizontal forces, 230 N and 120 N, are exerted in opposite direction on a crate. What is the horizontal acceleration of the
    9·1 answer
  • Compare a change in temperature of 1°C to a change of 1°F.
    6·2 answers
  • Describe the 3 types of projectiles.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!