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
slavikrds [6]
3 years ago
8

A 0.877-kg ball has an elastic, head-on collision with a second ball that is initially at rest. The second ball moves off with h

alf the original speed of the first ball. (a) What is the mass of the second ball
Physics
1 answer:
Art [367]3 years ago
7 0

Answer: the mass of the second ball is 2.631 kg

Explanation:

Given that;

m1 = 0.877 kg

Initial velocity = V0

Initial momentum = m1 × V0

final velocity of m1 is u1, final velocity of m2 is u2 = v0/2

now final momentum = m1 × u1 + m2 × u2

using momentum conservation;

m1×V0 = m1×u1 + m2×v0/2

m1×(v0 - u1) = m2×V0/2 ----- let this be equation 1

Now, for elastic collision;

m1×v0²/2 = m1×u1²/2 + m2×(v0/2)²/2

m1×(v0² - u1²) = m2×(v0/2)² --------- let this be equation 2

now; equation 2 / equation 1

: V0 + u1 = v0/2

2V0 + 2u1 = V0

2u1 = V0 - 2V0

u1 = -V0/2

now we insert in equ 1

 m1×3V0/2= m2×V0/2

m1 × 3 = m2

m2 = 0.877 × 3

m2 = 2.631 kg

Therefore, the mass of the second ball is 2.631 kg

You might be interested in
red light from a He-Ne laser is at 590.5 nm in the air. it is fired at an angle of 31.0 to horizontal at a flat transparent crys
Darina [25.2K]

Answer:

7374.4

Explanation:

I took the test

(filler so I can post)

5 0
2 years ago
Where does groundwater come from?
jek_recluse [69]
Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers.


Hope this helps.


Please mark as brainliest..........
4 0
2 years ago
Read 2 more answers
Please help on this one someone
Nonamiya [84]

Valence electrons are the electrons in the outermost energy level of an atom — in the energy level that is farthest away from the nucleus.

I think it's A.

6 0
3 years ago
During an investigation, a scientist heated 123.6 g of copper carbonate till it decomposed to form a black residue. The total ma
zloy xaker [14]

Answer:

See below explanation

Explanation:

The correspondent chemical reaction for copper carbonate decomposed by heat is:

CuCO₃ (s) → CuO (s) + CO₂ (g)

Considering all molar mass (MM) for each element ( we consider rounded numbers) :

MM CuCO₃ = 123 g/mol

MM CuO = 79 g/mol

MM CO₂ = 44 g/mol

Statement mentions that scientis heated 123.6 g of CuCO₃ (almost a MM), until a black residue is obtained, which weights 79.6 g : this solid residue is formed by CuO, and the remaining mass (approximatelly 44 g) belongs to teh second product, this is, CO₂; as it is a gas compund, it is not certainly included on the solid residue.

So, law of conservation mass is true for this case, since: 123.6 g = 79.6 g + 44 g. As explained, on the solid residue, we don not include the 44 g, which  "escaped" from our system, since it is a gas compound (CO₂)

5 0
3 years ago
when white light is incident on prism, which one of the resulting color components will have the lowest index of refraction?
attashe74 [19]
The color components that will have the lowest index of refraction will be orange.
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the difference in the charges on a ballon rubbed in your hair and a glass rod rubbed
    5·1 answer
  • The weight of air measured in units of force per area is called _____.
    6·2 answers
  • What is Newton's third law?
    7·2 answers
  • By how much does the pressure of a gas in a rigid vessel decrease when the temperature drops from 0 ∘C to –1∘C?
    12·1 answer
  • What is the difference between a heliocentric model of the solar system and a geocentric model?
    13·2 answers
  • What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron
    5·2 answers
  • What is your weight on Venus, assuming that the acceleration due to gravity on Venus is 8.875 m/s^2 and your mass is 50 kg.
    15·2 answers
  • Has an atomic number of 1
    11·2 answers
  • What force on a 936kg elevator that is falling freely at 9.8 m/s^2​
    8·1 answer
  • When a tiger drinks water, it makes portion of water oscillating up and down two complete cycles per second. As the water wave s
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!