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
Y_Kistochka [10]
2 years ago
13

Which theory was contradicted by experiments with the photoelectric effect?

Chemistry
2 answers:
olga55 [171]2 years ago
8 0

Answer:

C Visible light...

Explanation:

irina [24]2 years ago
8 0

Answer:

C. Visible light, regardless of color, will cause the ejection of electrons when striking metal.

Explanation:

I got it right on the quiz edg21

You might be interested in
Jennifer is applying a constant force to swing a can on the end of a string, as shown here. If the can is moving around the circ
Zepler [3.9K]

Answer:

Explanation:

D

4 0
3 years ago
Read 2 more answers
What is the molarity of a solution containing 7.47 moles of solute in 4.31 liters of<br> solvent?
scoray [572]

Answer:

1.73 M

Explanation:

Molarity is moles per liter, so we need to divide 7.47 moles by 4.31 liters to get the molarity of the solution.

7.47/4.31 ≈ 1.73 M

5 0
2 years ago
How does the amount of daylight affect the number of eggs laid by a chicken?
IrinaVladis [17]
Chickens lay eggs depending on the time of year. The number of daylight hours affect when they start laying and stop laying. If you artificially provide <span>light, the chickens will start laying. </span>
8 0
3 years ago
“What is the group number for the elements that have a stable number of electrons in their outer energy level?”
Studentka2010 [4]

Answer:

A. 18

Explanation:

Sulfur number sixteen forms a negative

|ω・)

3 0
2 years ago
By what factor would a scuba diver’s lungs expand if she ascended rapidly to the surface from a depth of 125 ft without inhaling
vova2212 [387]

It is found that scuba diver’s can safely ascend up to 52.53 ft without Breathing out.

By what factor would a scuba diver’s lungs expand if she ascended rapidly to the surface from a depth of 125 ft without inhaling or exhaling then

p_{1} =patm+pH_{2} O

p_{1} = 101325+ρgh_{1}

It is given that height is 125ft. Put the value of h in above formula:

h1  =125ft=38.1m

ρ=1.04g/mL=1040kg/m^{3}

g=9.81                                  

p_{1} =101325Pa+388711.44

p_{1}   =490036.44‬Pa                

p_{2} =p atm  =101325Pa

It is known that volume and pressure can be expressed as:

V*P=const.

where, V is volume and P is pressure.

Now,              

V_{1} *p_{1} =V_{2}  *p_{2}

V_{2} /V_{1}=p_{2} /p_{1}

V_{2} /V_{1} =490036.44/101325

V_{2} /V_{1}=4.84

Assume constant temperature

d of seawater = 1.04 g/mL; d of Hg = 13.5 g/mL.

now p_{1} =p atm​+pH_{2} O =490036.44Pa

V*p=const                              

where, V is volume and P is pressure.

Now,              

V_{1} *p_{1} =V_{2}  *p_{2}

V_{2} /V_{1}=p_{2} /p_{1}

V_{2} /V_{1} =490036.44/X

p_{2} =490036.44pa/(V2/V1) =326690.96Pa

p_{2} =patm +pH_{2} O

p_{2} =101325Pa+ρgh_{2}

326690.96Pa=101325Pa+ρgh_{2}

ρgh1  =151987.5-101325=225365.96‬‬Pa

ρ=1,04g/mL=1040kg/m3

g=9.81

h_{2} =225365.96/‬ρ∗g

​h_{2}  =225365.96  / ‬1040∗9.81

h_{2}  =22.09m= 72.47ft

ΔH=H_{1} -H_{2}

=125-72.47

=52.53ft

So she can safely ascend up to 52.53 ft without Breathing out

To know more about Scuba diver here

brainly.com/question/15430942

#SPJ4

6 0
1 year ago
Other questions:
  • Suppose 1.65 moles of C₆H₆ react with excess oxygen to produce carbon dioxide and water.
    6·2 answers
  • The molecular structure of water contains two atoms of hydrogen and one atom of oxygen . When water reaches its boiling point an
    8·1 answer
  • PLEASE HELP ! Need help now ! Thank you in advance , will mark brainliest !!
    5·1 answer
  • How much heat energy in megajoules is neede to convert 7kilograms of ice at negative 9 degrees to water at 0 degrees celsius
    14·1 answer
  • Draw a three-dimensional representation of the oxygen-bearing carbon atom in ethanol,
    12·1 answer
  • Consider the assumption that the four molecules of interest have approximately the same molar mass and very similar polarizabili
    5·1 answer
  • The valency of sodium metal
    13·1 answer
  • Darryl finds a bottle of what looks like clear water, with dirt settled at the bottom. When he shakes the bottle, the water gets
    5·1 answer
  • 2.5kg weighing cat climbing at the top of the tree has a potential energy of 986 J. Find the height.
    13·1 answer
  • When a negatively charged beta particle is emitted by a radioactive nucleus which change happens in the nucleus?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!