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
timofeeve [1]
3 years ago
11

Which of the following is a physical change

Physics
1 answer:
topjm [15]3 years ago
6 0

Answer: A physical change can be a change in size, shape, or color.

Explanation:

One type of physical change is a phase change. Consider water for example, if liquid water evaporated into a vapor, a phase change occurred. A phase change is a type of physical change.  The difference between a physical change and chemical change is that a physical change doesn't change the substance identity. A chemical change can however change the identity of the substance.

You might be interested in
Which moon phase comes before the phase in this picture?
hodyreva [135]
Waxing gibbous
Ushjdjsidjnd
8 0
3 years ago
Read 2 more answers
During which phase of mitosis do the chromosomes line up across the center of the cell?
nirvana33 [79]
Metaphase; the centromeres of  duplicated chromosomes line up in the middle of the cell. (It's also the shortest phase of mitosis).
5 0
3 years ago
At what rate must a cylindrical spaceship rotate if occupants are to experience simulated gravity of 0.50 gg? Assume the spacesh
Svetradugi [14.3K]

Answer:

The time needed is T  = 16.8 s

Explanation:

From the question we are told that

      The magnitude of the stimulated acceleration due gravity is  a  =  0.5 g

        The diameter of the spaceship is  d =  35m

       

Generally the force acting on the spaceship is  

       F  =  ma

Given that the spaceship is rotating it implies that the force experienced by the occupant is a centripetal force so

      F  = \frac{mv^2}{r}

Thus  

       ma  =  \frac{mv^2}{r}

=>    \frac{v^2}{r}  =  a

      Generally the speed of this spaceship is mathematically represented as

      v =  \frac{2 \pi}{T}

=>    v^2  =   [\frac{2\pi}{T}] ^2

=>     \frac{\frac{4\pi^2 r^2}{T^2} }{r}  = 0.5g

=>       \frac{4 \pi^2 r }{T^2} =  0.5 g

=>         T  = \sqrt{ \frac{4\pi^2 r}{0.5g}}

substituting values

          T  = \sqrt{ \frac{4* (3.142)^2 *(35)}{0.5 * 9.8}}

         T  = 16.8 s

4 0
3 years ago
Read 2 more answers
In a double-slit experiment, light from two monochromatic light sources passes through the same double slit. The light from the
GaryK [48]

We will determine the wavelength through the relationship given by the distance between slits, this relationship is given under the function

y = \frac{m\lambda}{d}

Here,

m = Number of order bright fringe

\lambda = Wavelength

d = Distance between slits

Both distance are the same, then

y_1 = y_2

\frac{m_1\lambda_1 r}{d} = \frac{m_2\lambda_2 r}{d}

\frac{m_1\lambda_1}{m_2\lambda_2} =1

 Rearranging to find the second wavelength

m_1 \lambda_1 = m_2 \lambda _2

\lambda_2 = \frac{m_1\lambda_1}{m_2}

\lambda_2 = \frac{7(629)}{8}

\lambda_2 = 550.3nm

Therefore the wavelength of the light coming from the second monochromatic light source is 550.3nm

7 0
3 years ago
Which of the following types of light has the most energy to give to an electron?
IgorC [24]
I think it’s ultraviolet, if not i’m sorry!
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the mechanical advantage of the machine?
    8·2 answers
  • The total amount of energy in the universe is
    6·1 answer
  • The standard unit of work in the metric system is named after the scientist _____.
    8·2 answers
  • What is the speed of a 0.145kg baseball if its kinetic energy is 109J?
    15·1 answer
  • What forces hold the planets and the moon together?
    6·2 answers
  • In reaching her destination, a backpacker walks with an average velocity of 1.32 m/s, due west. This average velocity results, b
    15·1 answer
  • Which of the following is related to a person’s self-concept?
    9·2 answers
  • Help, please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • How did the discovery of eris force astronomers to reconsider the definition of planet?
    7·1 answer
  • Need help with problems 5,7,85 is not out7 is not up 8 is not 0N
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!