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
Aleks [24]
3 years ago
15

Can someone please answer this ? it doesn’t make sense to me

Physics
1 answer:
s344n2d4d5 [400]3 years ago
6 0

Answer:

me too I can't understand

You might be interested in
What is the length a rubberband was stretched if it has a spring constant of 5700N/m and is currently holding 8600J OF POTENTIAL
lozanna [386]

Answer:

\displaystyle \Delta x=1.74\ m

Explanation:

<u>Elastic Potential Energy </u>

Is the energy stored in an elastic material like a spring of constant k, in which case the energy is proportional to the square of the change of length Δx and the constant k.

\displaystyle PE = \frac{1}{2}k(\Delta x)^2

Given a rubber band of a spring constant of k=5700 N/m that is holding potential energy of PE=8600 J, it's required to find the change of length under these conditions.

Solving for Δx:

\displaystyle \Delta x=\swrt{\frac{2PE}{k}}

Substituting:

\displaystyle \Delta x=\sqrt{\frac{2*8600}{5700}}

Calculating:

\displaystyle \Delta x=\sqrt{3.0175}

\boxed{\displaystyle \Delta x=1.74\ m}

6 0
3 years ago
During most nuclear reactions A. heat energy is produced but not light energy. B. energy is transferred out of the system. C. en
aniked [119]

Answer:

A)heat energy is produced but not light energy

3 0
3 years ago
Read 2 more answers
Please, Help!!
Elenna [48]

Let, 1st force = a

2nd force = b

A.T.Q,

a+b = 10

a-b = 6

Calculate for a & b, you'll get a=8 & b= 2

After increasing by 3, it'll be a = 8+3 = 11 & b=2+3 = 5

Resultant force at 90 degree angle = 11+5 = 16 Newtons

7 0
3 years ago
Read 2 more answers
Please help me with this physics problem​
Vesna [10]

Answer:

idk

Explanation:

4 0
3 years ago
How does the speed of visible light compare with the speed of gamma rays
DochEvi [55]

Answer:

They are the same

Explanation:

Electromagnetic waves consist of perpendicular oscillations of electric and magnetic field, which oscillate perpendicularly to the direction of motion of the wave (transverse wave). One property of the electromagnetic waves is that they travel in a vacuum always at the same speed, called speed of light:

c=3.0\cdot 10^8 m/s

Electromagnetic waves are classified into 7 different types according to their frequency; from highest to lowest frequency, we have:

Gamma rays

X-rays

Ultraviolet

Visible light

Infrared

Microwaves

Radio waves

We see that both visible light and gamma rays are electromagnetic waves, so they both travel in a vacuum at the same speed, the speed of light.

3 0
3 years ago
Other questions:
  • A typical stellar spectrum (a plot of intensity versus wavelength) includes a number of deep indentations in which the intensity
    11·1 answer
  • A 20000 kg railroad car is rolling at 1.00 m/s when a 1000 kg load of gravel is suddenly dropped in. part a what is the car's sp
    9·1 answer
  • Endorphins are generated in the body during exercise, which leads to better emotional health true or false
    7·2 answers
  • A submarine sends a signal and receives an echo after 5 seconds. Calculate the speed of sound if distance of object from submari
    15·2 answers
  • Einstein’s general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had
    11·1 answer
  • • Be able to identify the forms of kinetic vs. potential energy, and to list some forms of each. • Be able to state the Law of C
    15·1 answer
  • Halving the distance (i.e., decreasing by a factor of two) between two charged objects will cause the electrical force between t
    8·1 answer
  • How coal power plants produce electrical energy to power our homes
    5·1 answer
  • Express 34.0 cm in inches
    12·1 answer
  • The synthesis of a large collection of information that contains well-tested and verified hypothesis, laws and definitions to ex
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!