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
ipn [44]
3 years ago
12

A train passes a stationary observer. Which of

Physics
1 answer:
Lyrx [107]3 years ago
4 0

Explanation:

Sorry but thee is none options for me to choose

You might be interested in
Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it conta
shtirl [24]

Answer:

1020 km

Explanation:

A complete rotation of the wheel equals a distance of 1 circumference.

The circumference is

C = \pi d

where <em>d</em> is the diameter of the wheel.

300,000 rotations = 300000\pi d = 300000\times\pi\times1.08\text{ m} = 1017876.0\ldots\text{ m}

In kilometers, this is = 1017876/1000 km = 1020 km

6 0
3 years ago
A 5.0 kg chunk of putty moving at 10m/s collides and sticks to a 7.0 kg bowling ball that is initially at rest.What is the total
Flura [38]

Answer:

Total momentum = 50kgm/s

Explanation:

<u>Given the following data;</u>

Mass, M1 = 5kg

Mass, M2 = 7kg

Velocity, V1 = 10m/s

Velocity, V2 = 0m/s (since it's at rest).

To find the total momentum;

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = Mass * Velocity

The law of conservation of momentum states that the total linear momentum of any closed system would always remain constant with respect to time.

Total momentum = M1V1 + M2V2

Substituting into the equation, we have;

Total momentum = 5*10 + 7*0

Total momentum = 50 + 0

<em>Total momentum = 50 kgm/s</em>

<em>Therefore, the total momentum of the bowling ball and the putty after they collide is 50 kgm/s. </em>

8 0
3 years ago
Question 5(Multiple Choice Worth 3 points) (05.01 LC) Complete the following statement. The universe is filled with millions of
pashok25 [27]

the answer is a: galaxies. galaxy clusters are groups of galaxies that like to hang out together out there in space. the milky way's own galaxy cluster is called the local group.

8 0
4 years ago
Read 2 more answers
Help please with number 7 !!!!!!! Plz ahhhhhh
baherus [9]

it is the Atlantic ocean

5 0
3 years ago
A 7.00-kg object accelerates from rest to a final velocity in 55 seconds. If the magnitude of the
Len [333]

Answer:

The final velocity of the object is 330 m/s.

Explanation:

To solve this problem, we first must find the acceleration of the object.  We can do this using Newton's Second Law, given by the following equation:

F = ma

If we plug in the values that we are given in the problem, we get:

42 = 7 (a)

To solve for a, we simply divide both sides of the equation by 7.

42/7 = 7a/7

a = 6 m/s^2

Next, we should write out all of the information we have and what we are looking for.

a = 6 m/s^2

v1 = 0 m/s

t  = 55 s

v2 = ?

We can use a kinematic equation to solve this problem.  We should use:

v2 = v1 + at

If we plug in the values listed above, we should get:

v2 = 0 + (6)(55)

Next, we should solve the problem by performing the multiplication on the right side of the equation.

v2 = 330 m/s

Therefore, the final velocity reached by the object is 330 m/s.

Hope this helps!

7 0
3 years ago
Other questions:
  • The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin
    8·1 answer
  • Gravitational force is directly related to mass and inversely related to distance. So the bigger the masses the greater the forc
    10·1 answer
  • A wave is traveling through a medium ad it travels it displaces particles of matter in the same direction as the wave is traveli
    14·2 answers
  • Determine weather or not the equation below is balanced.
    15·1 answer
  • PLEASE HELP ME WITH THIS PROBLEM
    11·1 answer
  • What is the speed of a runner that runs 400m in 48.42 seconds?
    10·1 answer
  • As the mass of an object increases, the weight of the object will ______?
    11·1 answer
  • The mass of the skier including his equipment is 75 kg in the ski race, the total vertical change in height is 880m
    13·1 answer
  • How can I convert this?<br>Please answer with solution. Thank you.​
    11·1 answer
  • How can electricity produce heat and light? ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!