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
solong [7]
3 years ago
13

Using Hooke's law F spring = k dela x, find elastic constant of a spring that stretches 2cm when a 4 newton force is applied to

it
Answers in the picture

Physics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer: <em>2 N/cm  (B)</em>

Given that:

Spring stretches = 2 cm ,

Force  = 4 N,

<em>determine </em>

            the spring constant/elastic constant ( k)= ?

            We know that from hook's law, <em>F = k.x</em>  N

                                                                 4 = k × 2

                                                                => k  =4/2

                                                                         = 2 N/cm

The elastic constant is 2 N/cm

           

You might be interested in
When an object (like a ball) falls, some of its _____ energy changes to _____ energy, due to the law of conservation of energy
malfutka [58]

Answer:

  • c ) potential your welcome hehe
3 0
3 years ago
WILL UPVOTE! MULTIPLE CHOICE!
Stels [109]
1. A. The SI unit for current is the ampere.
2. C. The unit for resistance = ohm.
3. B. EMF is measured in volts.
4. B. Electric current is the flow of charged particles, i.e. electrons.
5. B or C. All other answers are metals.
6. C. The dimensions of a material don't affect its resistance.
7. D. Ohm's law: current = voltage / resistance, 12/4 = 3.
8. B. Batteries transform chemical energy into electrical energy.
9. A. Metals are generally good conductors.
6 0
3 years ago
Hey can someone please help me and can u show your work plz plz plz plz
Tju [1.3M]

Answer:

Good luck

Explanation:

4 0
2 years ago
A 0.0427 kg racquet-ball is moving
Gwar [14]

Answer:

Mass of the box = 0.9433 kg

Explanation:

Mass of racket-ball (m_1) = 0.00427 kg

Velocity of racket-ball before collision (v_{1i}) = 22.3 m/s

Velocity of racket-ball after collision with box (v_{1f}) = -11.5 m/s

[Since ball is bouncing back, so velocity is taken negative.]

Velocity of the box before collision v_{2i} = 0 m/s

<em>[Since the box is stationary, so velocity is taken zero]</em>

Velocity of box moving forward after collision v_{2f}= 1.53 m/s

To find the mas of the box m_2.

By law of conservation of momentum we have:

Momentum before collision = Momentum after collision

This can be written as:

p_i=p_f

m_1v_{1i}+m_2v_{2i}=m_1v_{1f}+m_2v_{2f}

We can plugin the given value to find m_2

(0.0427\times 22.3)+(m_2\times 0)=(0.0427\times (-11.5))(m_2\times 1.53)

0.9522+0=-0.4911+1.53m_2

Adding both sides by 0.4911

0.9522+0.4911=-0.4911+0.4911+1.53m_2

1.4433=1.53m_2

Dividing both sides by 1.53.

\frac{1.4433}{1.53}=\frac{1.53m_2}{1.53}

0.9433=m_2

∴ m_2=0.9433 kg

Mass of the box = 0.9433 kg (Answer)

4 0
3 years ago
How does the resistance change as you add bulbs to a series circuit?
Ronch [10]
The resistance is increased when more and more bulbs are added to the circuit.
7 0
3 years ago
Read 2 more answers
Other questions:
  • I WILL MARK BRAINLIEST FOR THE FIRST PERSON TO ANSWER THESE QUESTIONS!!
    8·1 answer
  • A 25 kg cart has a momentum of 125 kg nys
    11·1 answer
  • A sound wave traveling eastward through the air causes the air molecules to
    7·1 answer
  • What is something that claims to be science but is not?
    6·1 answer
  • 4. There is a horizontal wire with conventional current of 850 A moving to the right. (a) Draw how the magnetic field generated
    15·1 answer
  • Hi! I just need the equation for how to solve it, then plug the numbers into it, and then the answer. Please do #4, and if u wan
    6·1 answer
  • Why do some "people" still believe that the earth is "flat".
    14·1 answer
  • Help me!
    5·2 answers
  • A ball is still live when
    11·1 answer
  • What is kinematics??? +_+​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!