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
earnstyle [38]
4 years ago
11

Two cars collide inelastically and stick together after the collision. Before the collision, the magnitudes of their momenta are

p1 and p2. After the collision, the magnitude of their combined momentum is p. Of what can one be certain?
Physics
1 answer:
slavikrds [6]4 years ago
7 0

Answer:

The correct answer is

p = p₁ + p₂

Explanation:

Newton's second law states that force = the change of momentum produced therefore since the collision is inelstic then the change of momentum of each car is p₁ and  p₂ and the force of the collition is proportional to p₁ + p₂ that is

F ∝ p₁ + p₂ and since force is directly proportional to p we have

p = p₁ + p₂

You might be interested in
How much force is required to accelerate a 2 kg mass at 3 m/s2
swat32

Force = (mass) x (acceleration)                  Newton's second law of motion.

Force = (2 kg) x (3 m/s²)  =  6 newtons.

3 0
4 years ago
In which of these samples do the molecules most likely have the most kinetic energy? (2 points)
Vinvika [58]

D, water vapor. Gaseous state would have more kinetic energy, they are moving faster. If you have to compare the same state, then higher temperature would have the higher kinetic energy. But if you have solid and liquid at the same temperature - then liquid would have more.

4 0
3 years ago
Being able to see a square in the middle of the image despite not having lines to form a square represents the Gestalt principle
vredina [299]

Answer: The correct answer for the blank is -

C. closure.

Gestalt principle of closure describes how we perceive complete figures even when the information that form the figure is missing.

This is due the fact that our brain responds to the familiar patterns inspite of getting incomplete information.

For instance, in the given question, we are able to perceive an image of square in the center despite not having actual lines that form a square.

Thus, it represents principle of closure.

7 0
4 years ago
Read 2 more answers
List what sources of uncertainty go into calculating the wavelength of the laser (no explanation necessary here). (b) Accurately
laiz [17]

Answer:

thanks for da 5points hoi

Explanation: thanks dawg

7 0
3 years ago
When we apply the energy conversation principle to a cylinder rolling down an incline without sliding, we exclude the work done
NikAS [45]

Answer:

D. the linear velocity of the point of contact (relative to the inclined surface) is zero

Explanation:

The force of friction emerges only when there is relative velocity between two objects . In case of perfect rolling , there is no sliding so relative velocity between the surface and the point of contact is zero . In other words the velocity of point of contact becomes zero , even though , the whole body is in linear motion . It happens due  point of contact having two velocities which are equal and opposite . One of the velocity is in forward direction and the other velocity which is due to rotation is in backward direction . So net velocity of point of contact becomes zero . Due to absence of sliding , displacement due to friction  becomes zero . Hence work done by friction becomes zero.

5 0
4 years ago
Other questions:
  • The propeller of an airplane is at rest when the pilot starts the engine; and its angular acceleration is a constant value. Two
    14·2 answers
  • A miniature light bulb with resistance of 3 ohms is connected to a 6-volt source. How much current will flow through the bulb?
    6·1 answer
  • a train travels 81 kilometers in 2 hours and then 88 kilometers in 2 hours what is its average speed​
    5·1 answer
  • En Argentina en que deportes se realizan controles de doping
    11·1 answer
  • 4. Which of the following statement is correct regarding velocity and speed of a moving body?
    13·2 answers
  • It took an American football lineman 14 seconds to complete 10 repetitions of a 102 kg bench press. If the bar had to travel 1.4
    12·1 answer
  • Electrical equipment is required to be adequately protected against short-circuit current conditions per NEC 110.10 and several
    13·1 answer
  • Which ones of the following lights are present in both sunlight and a grow
    13·1 answer
  • A ferris wheel with radius r rotates freely about its central
    5·2 answers
  • An 50kg car travels at 2m/s. What is the car's Kinetic energy? <br> 100J<br> 200J<br> 50J
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!