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
Lina20 [59]
3 years ago
11

When you measure the boiling point of mercury, you are investigating a ___. a.chemical change b.chemical property c.physical cha

nge d.physical property
Physics
1 answer:
Amanda [17]3 years ago
3 0
D. physical property

the bonds between molecules of mercury are breaking so it's physical and it's not changing the chemical composition of the substance
You might be interested in
Mountain ranges that form close to a subduction zone are likely to experience 
KIM [24]

Answer:

the correct answer choice woud be C.  hope this helps :)

Explanation:  Mountain ranges that form close to a subduction zone are likely to experience volcanic activity.

4 0
3 years ago
Read 2 more answers
James Bond is trying to escape his enemy on a speedboat but
SVEN [57.7K]

Answer:

100 m/s

Explanation:

Mass the mass of Bond's boat is m₁. His enemy's boat is twice the mass of Bond's i.e. m₂ = 2 m₁

Initial speed of Bond's boat is 0 as it won't start and remains stationary in the water. The initial speed of enemy's boat is 50 m/s. After the collision, enemy boat is  completely stationary. Let v₁ is speed of bond's boat.

It is the concept of the conservation of momentum. It remains conserved. So,

m_1u_1+m_2u_2=m_1v_1+m_2v_2

Putting all the values, we get :

0+(2m_1)50=m_1v_1+(2m_2)(0)\\\\100m_1=m_1v_1\\\\v_1=100\ m/s

So, Bond's boat is moving with a speed of 100 m/s after the collision.

3 0
3 years ago
Red light strikes a metal surface and electrons are ejected. If violet light is now used with a 10% greater intensity, what will
Juli2301 [7.4K]

Answer:

correct answer is C

Explanation:

The photoelectric effect was correctly described by Einstein, where he assumes that the light ray is formed by photons that are articulated and behaves like an elastic shock, the energy of this particular is described by the Planck equation.

             K = h f + Ф

where k is the kinetic energy of the electrons, f the frequency of the photons and Ф the work function of the material.

In this experiment, red light removes electrons, it is assumed that each photon spreads an electron if we have another light with more energy and 10% more intense, that is, with 10% more shapes and each arcane an electron the number of electrons removed of; material is increased by 10%.

The change in wavelength and consequently the frequency

            c = λ f

            f = c /λ

therefore, the wavelength of the voilet λ = 400 num has a higher frequency and therefore more energy, so that the turned-on turns have more kinetic energy.

With these approaches we examine the final answers where the correct answer is C

3 0
3 years ago
John wants a new video tape and a new shirt, but he only has $12.00. He buys the video tape and gets $0.52 change. What was his
mestny [16]

Answer:

You have the answer in your comments. I will be copying it so your question doesn't get deleted.

The answers is $0.58

$11.48

the video tape

the new shirt

7 0
2 years ago
Which of the following is not a fluid?
Alinara [238K]
The choices are confusing. Air, oil, and alcohol are fluids at any reasonable temperature. Dry cement is not.
4 0
3 years ago
Read 2 more answers
Other questions:
  • One deterrent to burglary is to leave your front porch light on all the time. If your local power utility sells energy at 17¢ pe
    13·1 answer
  • Read this because I need help pleaseeeeee !!!
    10·1 answer
  • What is first and second conditions of equilibrium?
    6·1 answer
  • A self-driving car traveling along a straight section of road starts from rest, accelerating at 2.00 m/s2 until it reaches a spe
    10·2 answers
  • What is radiation? Explain in your own words.
    10·2 answers
  • A car with a mass of 1500 kg is moving at a rate of 4 m/s
    6·1 answer
  • What is meant by total internal refraction​
    8·1 answer
  • Hearing rattles from a snake, you make two rapid displacements of magnitude 1.8 m and 2.4m. Draw sketches, roughly to scale, to
    10·1 answer
  • Would u rather/ tiktoc famous or insta famous
    10·2 answers
  • Find the mass of a football player who has 1200 N of force and has an acceleration of 1.5 m/s2 ?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!