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
olga nikolaevna [1]
3 years ago
15

Consider the hypothesis below and answer the question that follows. Adding salt to water increases the water’s boiling point. If

you performed an experiment to test this hypothesis, which action would introduce confounding variables into your experiment?
You use distilled water sourced from the same place.
You add black salt to some specimens and pink salt to others.
You add equal quantities of salt in all the water specimens.
You use earthen clay pots to store and boil all the water specimens.
Physics
2 answers:
irakobra [83]3 years ago
8 0
The hypothesis because its very hard to make and it confounds me
Tju [1.3M]3 years ago
7 0

Answer C. You add equal quantities of salt in all the water specimens.

You might be interested in
The chemical name for bleach is sodium hypochlorite (NaClO). It is created by a chemical reaction between sodium (Na), chlorine
Sedbober [7]
<span>O + Na + Cl = NaClO

Reactants :

O -> </span><span>Oxygen
</span><span>
Na -> Sodium

Cl-> Chlorine

hope this helps!

</span>
4 0
3 years ago
Read 2 more answers
To a stationary observer, a bus moves north with a speed of 10 m/s. A man inside walks toward the back of the bus with a speed o
Rudiy27
9.6m/s - apex .........................
3 0
3 years ago
Read 2 more answers
A sound wave traveling through dry air has a frequency of 15 Hz, a
Korolek [52]

Answer:

Option B

Explanation:

Speed of a wave is denoted by:

v=fλ

where f is the frequency which is unchanged 15Hz and λ is the new wavelength which is 28m

v=fλ

v=15(28)\\v=420m/s

3 0
3 years ago
Read 2 more answers
Light with energy equal to three times the work function of a given metal causes the metal to eject photoelectrons. What is the
Mrac [35]

The ratio of the maximum photoelectron kinetic energy to the work function will be 3:1.

<h3 /><h3>What is the photoelectric effect?</h3>

When a medium receives electromagnetic radiation, electrostatically charged particles are emitted from or inside it.

The emission of ions from a steel plate when light falls on it is a common definition of the effect. The substance could be a solid, liquid, or gas; and the released particles could be protons or electrons.

A particular metal emits photoelectrons when exposed to light with energy three times its work function:

\rm KE=3 \phi

The ratio of the maximum photoelectron kinetic energy to the work function will be;

R=\frac{E}{\phi} \\\\ R=\frac{3 \phi}{\phi} \\\\ R= 3

Hence, the ratio of the maximum photoelectron kinetic energy to the work function will be 3:1.

To learn more about the photoelectric effect refer to the link;

brainly.com/question/9260704

#SPJ1

5 0
1 year ago
Why does a satellite in a circular orbit travel at a constant speed? why does a satellite in a circular orbit travel at a consta
motikmotik
Why does a satellite in a circular orbit travel at a constant speed? why does a satellite in a circular orbit travel at a constant speed? there is a force acting opposite to the direction of the motion of the satellite. there is no component of force acting along the direction of motion of the satellite. the net force acting on the satellite is zero. the gravitational force acting on the satellite is balanced by the centrifugal force acting on the satellite?
..b.25
6 0
3 years ago
Other questions:
  • Which term defines the amount of mechanical work an engine can do per unit of heat energy it uses? A. specific heat B. conductiv
    11·1 answer
  • In your own words, explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make
    14·2 answers
  • Which force acts between two surfaces to prevent or slow motion
    15·1 answer
  • If you double the pressure on the surface of a can of water, the buoyant force on a stone placed in that water will
    15·1 answer
  • Physics Question:<br> (ignore the part crossed in red) 14459688
    15·1 answer
  • Two forces of 5N and 7N respectively act on an object.when will the resultant of two vectors be at a minimum?
    13·2 answers
  • Two equally charged tiny spheres of mass 1.0 g are placed 2.0 cm apart. When released, they begin to accelerate away from each o
    11·2 answers
  • Figure 1 shows a wave movement during one second. What is the frequency of the wave
    12·2 answers
  • Help:choose the correct statement plz​
    8·2 answers
  • 2. State law of conservation of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!