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
lbvjy [14]
3 years ago
13

Two rocks collide in outer space. Before the collision, one rock had mass 11 kg and velocity ‹ 4250, −2950, 2500 › m/s. The othe

r rock had mass 6 kg and velocity ‹ −700, 2150, 3700 › m/s. A 1 kg chunk of the first rock breaks off and sticks to the second rock. After the collision the 10 kg rock has velocity ‹ 1500, 300, 1900 › m/s. After the collision, what is the velocity of the other rock, whose mass is now 7 kg?
Physics
1 answer:
Svet_ta [14]3 years ago
3 0

Answer:

p_7kg,f=(25100-15000,38,500)m/s

Explanation:

In the collision the total momentum of the system is conserved so we only need to sum up the moments of our two rocks before and after the collision.  

p_11kg,i+p_6kg,i=p_10kg,f+p_7kg,f

11kg(4250, −2950, 2500)m/s+6(−700, 2150, 3700)m/s=10kg(1500, 300, 1900)m/s+p_7kg,f

(46,750-32,450,27,500)kgm/s+(4,200‬-12,900‬,22,200‬)kgm/s=(15,000‬-3000‬,19,000‬)kgm/s+p_7kg,f

p_7kg,f=(46,750-32,450,27,500)kgm/s+(4,200‬-12,900‬,22,200‬)kgm/s-(15,000‬-3000‬,19,000‬)kgm/s

p_7kg,f=(25100-15000,38,500)m/s

You might be interested in
A rare butterfly (0.01 kg) is slowly flapping its wings and moving across a road. An unsuspecting driver in a large car (1000 kg
aliya0001 [1]

Both the butterfly and the large car will have equal forces but in opposite direction.

<h3>Newton's third law of motion</h3>

Newton's third law of motion states that action and reaction are equal and opposite. That is, the force exerted on an object is equal to the reaction experienced by the object.

Fa = - Fb

where;

  • Fa is the force exerted by the large car
  • Fb is the force of the butterfly

Thus, both the butterfly and the large car will have equal forces but in opposite direction.

Learn more about Newton's third law of motion here: brainly.com/question/25998091

#SPJ1

8 0
2 years ago
A saturated solution of lead(II) nitrate was made at 50 °C using 100 g of water, and this was then allowed to cool to 30 °C. Pre
Sunny_sXe [5.5K]

Answer: The temperature of solution will decease along with the precipitation of solid lead nitrate in solution.

Explanation:

Solubility of the substance is directly effect by the temperature of the solvent.

This is because the kinetic energy of the solvent increase as temperature increase due to which solvent easily breaks apart the solute particles easily and faster which will result in solubility of more solute in solvent and vice versa.

So, when prepared saturated solution of lead nitrate at 50°C was allowed to cool down to 30°C one will observe that the precipitation of solid lead nitrate in solution. And this means that solubility of lead nitrate with decrease in temperature decreases as well.

4 0
4 years ago
Read 2 more answers
An object cannot remain at rest unless which of the following holds?
katen-ka-za [31]

Answer:

a. The net force acting on it is zero.

3 0
4 years ago
Read 2 more answers
How much heat is required to convert 10.0 g of ice at -14.0 ∘c to steam at 100.0 ∘c?
sdas [7]
What do you think? how long does your hand touch fire until it feels heat.


4 0
3 years ago
Which statement descThe image shows the right-hand rule being used for a current-carrying wire.
Makovka662 [10]
Answer:

The second option.
When the current flows up the wire, the magnetic field flows out on the left side of the wire and in on the right side of the wire.

Explanation:

The first figure that I copy here with is the figure corresponding to this question.

The thumb is pointing upward.

The rule is that the thumb aims to the direction of the flow of current and the other fingers give the field lines.

The second figure that I attach is a free image from internet and it shows the direction of both the current and the fiedl lines.

So, the conclusion is that the current goes upward the wire and the field lines go out of the paper (screen) for the points to the left of the wire and in on the right side of the wire.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Electromagnetic waves transfer energy from a warmer object to a cooler object, with or without
    15·2 answers
  • An atom’s emission of light with a specific amount of energy confirms that
    5·2 answers
  • If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?
    13·2 answers
  • A ball is dropped off a very tall canyon ledge.
    10·1 answer
  • To practice Problem-Solving Strategy 2.1 Motion with constant acceleration You are driving down the highway late one night at 20
    8·1 answer
  • A book is sitting on a table at rest. Which of the following best describes the forces acting on the book?
    13·2 answers
  • Why is a steam burn more damaging than a burn from boiling water at the same temperature?
    12·1 answer
  • V,? = V2 + 2a Ax
    5·1 answer
  • If you drop a rock off a cliff and it hits the ground 3 seconds later how tall is that cliff
    9·1 answer
  • Help me!! please ,,,,,,,,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!