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
77julia77 [94]
3 years ago
15

A 23 g bullet traveling at 230 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 170 m/s. If the block is stationary

on a surface with a coefficient of kinetic friction of 0.15 when hit, how far does it move after the bullet emerges?
Physics
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

Explanation:

Conservation of momentum during the collision

0.023(230) + 2.0(0.0) = 0.023(170) + 2.0v

v = 0.69 m/s

The initial block kinetic energy will be converted to friction work

½mv² = Fd = μmgd

½(2.0)(0.69²) = 0.15(2.0)(9.8)d

d = 0.1619387... m

d = 16 cm

You might be interested in
If the mass of the Jupiter is 1.9*10 kg and radius is fbx loom what is acclerallon due to gravity on the supiter ?​
Bond [772]

Answer:

g=25.92\ m/s^2

Explanation:

Given that,

The mass of the Jupiter,M=1.9\times 10^{27}\ kg

The radius of Jupiter,r=69,911\ km=69911\times 10^3 km

We need to find the acceleration due to gravity on Jupiter. The formula is

g=G\dfrac{M}{r^2}

Put all the values,

g=6.67\times 10^{-11}\times \dfrac{1.9\times 10^{27}}{(69911\times 10^3)^2}\\\\g=25.92\ m/s^2

So, the value of acceleration due to gravity on the Jupiter is 25.92\ m/s^2.

6 0
3 years ago
Which of the following factors affect the pressure of an enclosed gas?
dimulka [17.4K]

Answer:

D. All of the above.

Explanation:

PV=nRT

3 0
3 years ago
Objects that conduct electricity poorly are called
xxMikexx [17]
Objects that conduct electricity poorly are called non-metals.
4 0
4 years ago
Read 2 more answers
What is the magnitude of the force, directed parallel to the ramp, that he needs to exert on the crate to get it to start moving
lions [1.4K]

Complete question is;

Jason works for a moving company. A 75 kg wooden crate is sitting on the wooden ramp of his truck; the ramp is angled at 11°.

What is the magnitude of the force, directed parallel to the ramp, that he needs to exert on the crate to get it to start moving UP the ramp?

Answer:

F = 501.5 N

Explanation:

We are given;

Mass of wooden crate; m = 75 kg

Angle of ramp; θ = 11°

Now, for the wooden crate to slide upwards, it means that the force of friction would be acting in an opposite to the slide along the inclined plane. Thus, the force will be given by;

F = mgsin θ + μmg cos θ

From online values, coefficient of friction between wooden surfaces is μ = 0.5

Thus;

F = (75 × 9.81 × sin 11) + (0.5 × 75 × 9.81 × cos 11)

F = 501.5 N

3 0
3 years ago
The shape of the earth is an _______ ________
Nastasia [14]
The shape of the earth is an <span>oblate spheroid.</span>
3 0
3 years ago
Other questions:
  • describe a process in which energy changes forms at least twice. are there any unwanted forms of energy that are produced during
    15·1 answer
  • A 1000 kg weather rocket is launched straight up.The rocket motor provides a constant acceleration for 16 s, then the motor stop
    10·1 answer
  • What is your displacement if you walk 80 m north, 15 m east, 20 m south, 35 m west, and then 60 m south?
    14·1 answer
  • A 68.0 Kg tightrope walker stands at the center of a rope. The rope supports are 10 m apart and the rope sags 8.00 degrees at ea
    13·1 answer
  • The molecules in Tyler are composed of carbon and other atoms that share one or more electrons between two atoms, forming what i
    5·1 answer
  • What influence do culture and customs have on beliefs about mental disorders? Customs really don't determine what is considered
    11·1 answer
  • Air flows through a converging-diverging nozzle/diffuser. A normal shock stands in the diverging section of the nozzle. Assuming
    5·1 answer
  • Which of the following statements are true regarding electromagnetic waves traveling through a vacuum? (Select all that apply.)
    8·2 answers
  • ??????????????????????????????
    13·1 answer
  • PLS HELP!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!