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
Viefleur [7K]
4 years ago
9

A 2.1-kg brick is placed gently upon a 2.9-kg cart originally moving with a speed of 26 cm/s. determine the post-collision speed

of the combination of brick and cart.
Physics
1 answer:
vagabundo [1.1K]4 years ago
6 0
By conservation of linear amount of movement, we have to
 p1 = p2
 Where, p = m * v.
 So, using the definition for this case, we have:
 (2.9 kg)•(26 cm/s) = (2.1 kg + 2.9 kg)•v 
 75.4 kg•cm/s = (5.0 kg)•v 
 v = 15.1 cm/s
You might be interested in
James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air-conditione
Fudgin [204]

The constant is the temperature of the air that the plants get.

The independent variable is the thing that YOU control.  That's the amount of sunlight each plant gets.

The <em>dependent variable</em> is anything that's caused by changes in the independent variable.  That's the growth of the plants.

5 0
4 years ago
Read 2 more answers
A cat, walking along the window ledge of a new york apartment, knocks off a flower pot, which falls to the street 280 feet below
Harlamova29_29 [7]
H = 280 ft, the height of the flower pot.
g = 32 ft/s²

Neglect air resistance.
Note that 1 ft/s = 15/22 mi/h

The initial vertical velocity is zero.
Let v =  the velocity with which the flower pot hits the ground.
Then
v² = 2gh
    = 2*(32 ft/s²)*(280 ft)
    = 17920 (ft/s)²
v = 133.866 ft/s

Also,
v = (133.866 ft/s)*(15/22 (mi/h)/(ft/s)) = 91.272 mi/h

Answer:  133.9 ft/s or 91.3 mi/h

5 0
3 years ago
What is the SPEED of a ball that travels 120 m in 6s?
AVprozaik [17]

Answer:

20m/second

Explanation:

The reason the answer is 20m/second is because to find the speed of the ball  in this question you have to divide the distance over the time giving you the result of 20m/second

7 0
3 years ago
How would you describe the behavior of particles in a solid?
Minchanka [31]
How would you describe the behavior of particles in a solid?
4 0
3 years ago
Read 2 more answers
A publication which contains news on current events​
german

Answer:

A newspaper is a serial publication which contains news on current events of special or general interest.

3 0
3 years ago
Read 2 more answers
Other questions:
  • A baseball travels 50 meters in 4 seconds what is the average velocity of the baseball?
    11·1 answer
  • What conclusions can you draw about the connection between the Sun’s altitude and the latitude of the observer on seasonal chang
    12·1 answer
  • the mass of a brick is 4 kg, find the mass of water displaced by it when completely immersed in water.​
    6·1 answer
  • Does a front always mean one air mass will be displaced by another? When is there no displacement?
    8·1 answer
  • How to read a vernier calipers?
    5·2 answers
  • Mechanical energy is a term that is used to describe
    11·2 answers
  • Two instruments produce a beat frequency of 5 Hz. If one has a frequency of 264 Hz, what could be the frequency of the other ins
    15·1 answer
  • What are two characteristics of transverse waves that are not found in longitudinal waves
    7·1 answer
  • The spacecraft that really gave scientists their first good close-up look at the planet Mercury was:
    7·1 answer
  • You treat 9.540 g of the mixture with the acid and isolate 9.355 g of nacl. what is the weight percent of each substance in the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!