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
Oksanka [162]
3 years ago
14

I need help, please answer

Physics
1 answer:
Burka [1]3 years ago
7 0

This being a perfect collision means no energy is lost during the collision. Because this question asks for speed and not velocity, the speed will be the same because the final energy is the same. The speed after the collision would therefore be 1.27 m/s.

You might be interested in
If the voltage output of a digital manifold absolute pressure (MAP)sensor is 2 volts, the approximate engine vacuum is _______ i
LenaWriter [7]
The correct answer to this question is 15
3 0
3 years ago
What is the equation for potential energy?
Mrrafil [7]
You can calculate potential energy by:
U = m.g.h

Where, U = potential energy
m = mass
g = acceleration due to gravity
h = height

Hope this helps!
7 0
3 years ago
Read 2 more answers
A magnet contains a ____ numbers of magnetic domains
mylen [45]
A magnet contains billions of aligned atoms known as magnetic domains
6 0
3 years ago
Read 2 more answers
A parallel-plate capacitor has area A and plate separation d, and it is charged to voltage V. Use the formulas from the problem
Shtirlitz [24]

Answer:

U = (ε0AV^2) / 2d

Explanation:

Where C= capacitance of the capacitor

ε0= permittivity of free space

A= cross sectional area of plates

d= distance between the plates

V= potential difference

First, the capacitance of a capacitor is obtained by:

C = ε0A/d.

Starting at the formula , U= (CV^2)/2. Formula for energy stored in a capacitor

Substitute in for C:

U = (ε0A/d) * V^2 / 2

Hence:

U = (ε0AV^2) / 2d

3 0
3 years ago
Calculate the power of a person that does 8kJ of work in 4 hours
anzhelika [568]

\text{Power,}~ P = \dfrac{\text{Work done}}{\text{Time}}\\\\\\~~~~~~~~~~~~~=\dfrac{8 \times 1000~J}{4 \times 3600~ s}\\\\\\~~~~~~~~~~~~~~=\dfrac{80}{144}\\\\\\~~~~~~~~~~~~~~=0.56~ W

3 0
2 years ago
Read 2 more answers
Other questions:
  • A cylindrical tube sustains standing waves at the following frequencies: 600 Hz, 800 Hz, and 1000 Hz. The tube does not sustain
    9·1 answer
  • Complete the passage to differentiate between longitudinal and transverse waves.
    13·2 answers
  • What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 se
    10·1 answer
  • A quick USB charger claims its output current is 1.97Amp. We know that the standard USB output voltage is 5V. What is the output
    15·1 answer
  • Will an object with a density of 1.05 g/ml float or sink in water? Explain
    14·1 answer
  • Homework: What happens when you kick the bottom of the ball in soccer?​
    15·2 answers
  • A doctor is examining a child with a red, inflamed ear
    10·1 answer
  • The flow of electrons in a circuit follows a path from the negative terminal of the battery to the positive terminal
    8·1 answer
  • 6. Which of the following statements is true for displacement ?
    7·1 answer
  • Kayla is measuring how long it takes a ball to roll down a hill. The ball has a
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!