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
evablogger [386]
3 years ago
12

Two carts on an air track have the same mass and speed and are traveling toward each other. If they collide and stick together,

find the total momentum and total kinetic energy of the system.
Physics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

p = 0, K_{A} = m\cdot v^{2} (before collision), K_{B} = 0 (after collision).

Explanation:

The total momentum is obtained using the Principle of Momentum Conservation:

m\cdot v_{A} - m \cdot v_{A} = 2\cdot v_{B}

It is trivial to find that final speed and total momentum of the system are zero:

p = 0

The total kinetic energy of the system becomes zero due to the inellastic collision and the same masses and speeds. Total kinetic energies before and after collision are, respectively:

K_{A} = m\cdot v^{2}

K_{B} = 0

You might be interested in
What is potentiometer​
Mumz [18]

Answer:

i honestly don't know

Explanation:

but can you help me with a question

4 0
3 years ago
Read 2 more answers
The process of digestion breaks down proteins into smaller molecules that are used to rebuild other proteins. During digestion,
Len [333]

The process of digestion breaks down proteins into smaller molecules that are used to rebuild other proteins. During digestion, proteins undergo chemical changes.

<u>Option: D</u>

<u>Explanation:</u>

Proteins are broken down into amino acids considered the foundational element. When issued, these tiny molecules can then be consumed into the bloodstream via the gut wall. An enzyme is a protein which can regulate biochemical response rate. An enzyme integrates a water molecule around the bond in enzymatic hydrolysis processes which allows it to split.

The bonds which hold together the amino acids are recognized as peptide bonds. A hydrolysis process comparable to that included in splitting up carbohydrates is required to break the peptide bonds within a protein. Enzymes identified as proteases are required for the protein to disintegrate.

7 0
3 years ago
When food is digested, the
Mice21 [21]

Answer:

Chemical change

Explanation:

A chemical change is what happens. The food digested changes smell due to some enzyme the has acted on the food which catalyzes the rate of digestion. The enzymes acts on the food in order to speed up the rate of the reaction (digestion) and in turn causing the smell.

4 0
2 years ago
A horizontal force of 140 N is needed to pull a 60kg box across the horizontal floor at constant speed . Find the coefficient of
____ [38]

Explanation:

formula for force is:

force=mass × acceleration

but in case of friction

force =coefficient of friction × Normal Reaction

F. = u × R

U = F/R

but when placed horizontally

R= M×G

M=mass=60kg

G=Gravity(10m/s or 9.8m/s)

F=140N

U=140/60×10

U=140/600

U=0.2333333333

approximately to 3 significant figures

U=0.233

if i am correct rate it 5 star

4 0
1 year ago
Speed is different from velocity because
shtirl [24]

Answer:

A. velocity has a direction .. .

with magnitude too but speed has only magnitude

6 0
3 years ago
Read 2 more answers
Other questions:
  • A coil of wire is shaped into a solenoid and carries a current. The resulting magnetic field inside the solenoid __________.
    9·1 answer
  • What is the magnitude of the gravitational force of attraction between two 0.425-kilogram soccer balls when the distance between
    15·1 answer
  • I REaLLy NEEd hELP WITh THIs SCIENCE. ASAP!!!!!!!! :D
    12·1 answer
  • A parallel plate capacitor has circular plates with diameter D 21.5 cm separated by a distance d 1.75 mm. When a potential diffe
    6·1 answer
  • determine the quantity of work done when a crane lifts a 100-n block from 2m above the ground to 6m above the ground
    12·2 answers
  • Which of the following is not a common property of basesp
    7·1 answer
  • An incident ray of light strikes a diamond at an angle of
    7·2 answers
  • How many cups are in 4 gallons
    9·1 answer
  • Calculate the average speed of a runner who runs for 500 meters in 40 second HELP!
    7·1 answer
  • How has the theory of the Universe changed over time?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!