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
DENIUS [597]
3 years ago
11

A 35.0 g bullet strikes a 50 kg stationary piece of lumber and embeds itself in the wood. The piece of lumber and the bullet fly

off together at 8.6 m/s. What was the speed of the ballot before it struck the lumbar? Define the bullet and the wood as a system
Physics
1 answer:
astraxan [27]3 years ago
4 0

Answer:

12294.31 m/s

Explanation:

Momentum = (mass)(velocity)

Momentum before = Momentum after

(momentum of bullet)+(momentum of block)=(momentum of bullet and block)

0.035v+50(0)=(0.035+50)(8.6)

0.035v=430.301

v=12294.3142857m/s

You might be interested in
2. What is the energy that comes from heat?
fgiga [73]
Answer is

B. Exothermic
7 0
2 years ago
Read 2 more answers
Its not b...................
vladimir1956 [14]

sir what's the question you have all you wrote is it's not b

4 0
3 years ago
How long does it take to change a flat plain into mountains? help
Len [333]
Im not for sure but i think it takes a couple hundred years (or according to the climate)
5 0
3 years ago
Read 2 more answers
What is the name for the layer of cells at the back of the eye that contains photoreceptors?
Alona [7]
B.) The retina is the layer containing t<span>he light sensing nerve cells (rods and cones)

The lens helps the eye focus light on the retina, the cornea is the outer transparent structure that covers the iris and helps the eye focus, and the pupil is the opening through which light enters the eye.</span>
4 0
3 years ago
Read 2 more answers
xIn the reaction A B + C + heat, ______. there is a net input of energy the potential energy of the products is greater than tha
kow [346]

Answer: Option (d) is the correct answer.

Explanation:

A chemical reaction in which heat energy is liberated is known as an exothermic reaction.

For example, A \rightarrow B + C + Heat

In an exothermic reaction, energy of reactants is more than the energy of products.

This means that potential energy of products is less than the potential energy of reactants.

Thus, we can conclude that in the reaction A \rightarrow B + C + heat, the potential energy of the products is less than that of the reactant.

6 0
2 years ago
Other questions:
  • When its 75 kW (100 hp) engine is generating full power, a small single-engine airplane with mass 700 kg gains altitude at a rat
    12·1 answer
  • An electron moves at a speed of 1.0 x 104 m/s in a circular path of radius 2 cm inside a solenoid. The magnetic field of the sol
    10·1 answer
  • If the latent heat of fusion of ice is 334kj/kg and the specific heat of water is 4.18kj kg-1 k-1 how much heat, in joules, must
    9·1 answer
  • What in the world is infrared radiation
    14·1 answer
  • If the mass of the earth and all objects on it were suddenly doubled, but the size remained the same, the acceleration due to gr
    6·1 answer
  • If a force does a positive amount of work on an object, does the object's speed
    6·1 answer
  • When three identical bulbs of 60W,200V rating are connected in series at a 200V supply the power drawn by them will be?
    10·1 answer
  • A small wooden block with mass m1 is suspended from the lower end of a light cord that is l long. The block is initially at rest
    9·1 answer
  • Press the<br>story 14th<br>the won (Takedans far 1299/​
    10·1 answer
  • This occurs when a person comes into contact with hazard​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!