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
harina [27]
3 years ago
8

Which is an example of a chemical change?

Physics
1 answer:
yulyashka [42]3 years ago
3 0
It’s burning wax. All of the other options are physical changes .
You might be interested in
A light bulb does 100 joules of work in 2.5 seconds. how much work power dos it have
Lesechka [4]
100/2.5 because power=energy/time
5 0
3 years ago
A 55.2 kg softball player moving 3.11 m/s slides across dirt with uk=0.310. How far does she slide before coming to a stop​
hoa [83]

Refer to the attachment

5 0
2 years ago
A car that increase its speed from 20 km/h to 100 km/h undergoes -------acceleration,
stepladder [879]

negative acceleration- deceleration

8 0
3 years ago
Two 125 kg bumper cars are moving toward each other in opposite directions. Car X is moving at 10 m/s and Car Z at −12 m/s when
nignag [31]
<h2>Given that,</h2>

Mass of two bumper cars, m₁ = m₂ = 125 kg

Initial speed of car X is, u₁ = 10 m/s

Initial speed of car Z is, u₂ = -12 m/s

Final speed of car Z, v₂ = 10 m/s

We need to find the final speed of car X after the collision. Let v₁ is its final speed. Using the conservation of momentum to find it as follows :

m_1u_1+m_2u_2=m_1v_1+m_2v_2

v₁ is the final speed of car X.

m_1u_1+m_2u_2-m_1v_1=m_2v_2\\\\m_2v_2=m_1u_1+m_2u_2-m_2v_2\\\\m_1v_1=125\times 10+125\times (-12)-125\times 10\\\\v_1=\dfrac{-1500}{125}\\\\v_1=-12\ m/s

So, car X will move with a velocity of -12 m/s.

3 0
3 years ago
In freefall, heavier objects fall with a greater acceleration than lighter objects.
Rom4ik [11]

Answer:

That is not true all objects fall at the same speed excepts things like feathers or paper.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What volume In liters is a cube 20cm on a side? If the cube is filled with water what is the mass of the water?
    13·1 answer
  • A car cruises at a constant rate of 50 miles per hour. How much time will it take to go 600 miles?
    8·1 answer
  • In a crash or collision, why is it advantageous for an occupant to extend the time during which the collision is taking place?
    14·1 answer
  • A 65-cm segment of conducting wire carries a current of 0.35
    12·2 answers
  • At what angle does the sun hit the temperate zone?​
    15·2 answers
  • If an air traffic controller is describing the speed of an airplane as well as the direction in which it should begin its decent
    13·2 answers
  • Look at jackie's planned workout. Based on her entries, what would she do to maintain an effective long term workout routine
    8·1 answer
  • The kinetic energies of particles in a sample of matter are increasing. This sample is most likely
    6·2 answers
  • Which layer of the atmosphere is between the mesosphere and the exosphere?
    13·2 answers
  • "Chief accelerator" is an American idiom. The term "communist virus" must also have come from the United States. Since the outbr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!