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sergiy2304 [10]
3 years ago
7

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect? a) Light is made up of e

xtremely small particles. b) Particles that are emitted from a strip of metal are electrons. c) Shining light on a metal strip produces emissions. d) Energy of electrons depends on light’s frequency, not intensity.
Physics
2 answers:
elena-s [515]3 years ago
7 0

Answer:

D is the correct answer

Explanation:

olasank [31]3 years ago
3 0

Answer:

b) Particles that are emitted from a strip of metal are electrons.

Explanation:

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect?

b) Particles that are emitted from a strip of metal are electrons.

the metal is injected by photon which leads to electron emission called photo-electron.

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If a baseball has a negative velocity and a negative acceleration, its speed is
Korvikt [17]
Answer:constant cause it keeps happening Or it might be decreasing but I’m not sure
6 0
3 years ago
If ?h°rxn and ?s°rxn are both negative values, what drives the spontaneous reaction and in what direction at standard conditions
irakobra [83]

The release of free energy drives the spontaneous reaction.

Spontaneity can be <span>determined using the change in </span>Gibbs free energy (the thermodynamic potencial):

delta G=delta H – T*delta S

where delta H is the enthalpy and delta S is the entropy.

The direction (the sign) of delta G depends of the changes of enthalpy and entropy. If delta G is negative then the process is spontaneous.

In our case, both delta H and delta S are negative values, the process as said is spontaneous which means that it may proceed in the forward direction.

6 0
4 years ago
What happens to the density of a fluid as the substance gains thernal energy
Natalka [10]

Density reduces

Explanation:

The density of a fluid will reduce as a substance gains more thermal energy. Heat is a form of thermal energy usually noticed as temperature differences in a matter.

  • When thermal energy is gained by a body, the temperature of the body rises.
  • The particles of the medium gains more kinetic energy.
  • This causes the substance to expand and it has more volume.
  • When a substance expands, it occupies more space.
  • The more the volume a body occupies, the lesser the density.
  • Expansion does not change the mass of the fluid but the volume changes.
  • This is why density decreases.

Learn more:

Density brainly.com/question/8441651

#learnwithBrainly

8 0
4 years ago
Two horses are side by side on a carousel. Which has a greater tangential speed the one closer to the center or the one farther
photoshop1234 [79]

Answer:

The horse father from the center has a greater tangential speed. Although both horses complete one circle in the same time period, the one farther from the center covers a greater distance during that same period.

Explanation:

8 0
3 years ago
How many joules of kinetic energy does a pendulum have when it has 100 joules of potential energy
zloy xaker [14]

Answer:

The maximum kinetic energy is 100 j.    

Explanation:

<h3>The kinetic energy = (potential energy) + (kinetic energy) and the potential energy of 0 J implying its kinetic energy is 100 J, which is its maximum. </h3>

4 0
3 years ago
Read 2 more answers
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