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
-BARSIC- [3]
3 years ago
11

An unnamed professor is walking to class when an office chair (travelling in the same direction) collides with them. The profess

or fails into the chair and remains in the chair after collision. The professor, with a mass of 113kg, is travelling at 1.56 m/s. The chair has a velocity of 6.5 m/s, and a mass of 10kg. After the collision, and ignoring any effects of professor falling, what would be the speed of the chair professor system
Physics
1 answer:
ololo11 [35]3 years ago
5 0

Answer: 1.96 m/s

Explanation:

Given

Mass of Professor m_1=113\ kg

Velocity of professor u_1=1.56\ m/s

mass of chair m_2=10\ kg

velocity of chair u_2=6.5\ m/s

Suppose  after the collision, v is the common velocity

Conserving momentum

\Rightarrow m_1u_1+m_2u_2=(m_1+m_2)v\\\\\Rightarrow v=\dfrac{113\times 1.56+10\times 6.5}{113+10}=\dfrac{241.28}{123}\\\\\Rightarrow v=1.96\ m/s

You might be interested in
Two objects of the same radius start from rest and roll without slipping down a ramp. The objects are a hollow cylinder and a so
Westkost [7]

Answer:

Solid cylinder

Explanation:

because hollow may blow and just bounce

8 0
3 years ago
Which of the following statements is true?
seraphim [82]
All of the above statements are true.
4 0
4 years ago
Read 2 more answers
Us<br> Calculate the answer to the correct<br> number of significant digits.<br> 15.3<br> + 1.285
Natali [406]

Answer:

15.3

+1.285

---------------

Answer = 16.585

5 0
3 years ago
Think back to coulomb's law. two coins with identical charges are placed on a lab table 1.35 m apart.
ziro4ka [17]

The Coulomb’s law is expressed mathematically as:

F = k * q1 * q2 / d^2

Where,

F = force of attraction between 2 particles = 2.0 N

<span> k = Coulomb’s constant = 8.988 * 10^9 N m^2 / C^2</span>

q = charge of the particle

d = distance between the 2 particles = 1.35 m

 

Since the two coins have identical charges therefore q1 = q2 =q

F = k* q^2 / d^2

2.0 N = (8.988 * 10^9 N m^2 / C^2) * q^2 / (1.35 m)^2

q = 2.01 * 10^-5 C

<span>Therefore each coins have charges equivalent to 2.01 * 10^-5 C.</span>

4 0
4 years ago
Why do solar eclipses happen only during a new moon?
mixas84 [53]

Answer:

For a solar eclipse to occur the moon must be between the earth and the sun (the light of the sun is blocked)'

By definition this is a new moon (which occurs when the moon cannot be seen because it is located between the sun and the earth).

6 0
3 years ago
Other questions:
  • Is water wet? What is your reasoning for thinking this?
    13·2 answers
  • What impulse was delivered to the sled by the friction force from the rough spot?
    6·1 answer
  • The gravitational acceleration on the moon is about one-sixth the size of the gravitational acceleration on Earth. According to
    13·2 answers
  • Five equal negative charges are uniformly spaced in a semicircular
    8·1 answer
  • A diver comes off a board with arms straight up and legs straight down, giving her a moment of
    7·1 answer
  • Suppose a 185 kg motorcycle is heading toward a hill at a speed of 29 m/s. The two wheels weigh 12 kg each and are each annular
    6·1 answer
  • How do mountain building and volcanoes relate to plate motion at convergent boundaries
    13·1 answer
  • A 1600N force is applied to a 85kg mass what is the acceleration of the mass?
    14·1 answer
  • A small 175-g ball on the end of a light string is revolving uniformly on a frictionless surface in a horizontal circle of diame
    9·1 answer
  • What is an open circuit?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!