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
soldier1979 [14.2K]
3 years ago
11

Which researcher first realized that certain psychic secretions pointed to a simple but important form of learning

Physics
1 answer:
AnnZ [28]3 years ago
8 0

Ivan Pavlov was the researcher that first realized that certain psychic secretions pointed to a simple but important form of learning.


The way he figured this out was when dogs paired certain things with food, and because of this, the dogs started salivating.

You might be interested in
Is energy measured in joules
Valentin [98]

Answer:

Yes

Explanation:

In the International System of Units (SI), energy is measured in joules. One joule is equal to the work done by a one- newton force acting over a one- metre distance

4 0
3 years ago
Read 2 more answers
A train travels north at a speed of 50 m/s.
Gala2k [10]

The apparent velocity is B) 48 m/s north

Explanation:

Here we have a problem of relativity of velocities.

In fact, the train is travelling north at a speed of

v_t = 50 m/s

where this velocity is measured with respect to the ground.

At the same time, a passenger on the train is walking towards the rear (so, south) at a velocity of

v'=2 m/s

where this velocity is measured with respect to the train, which is in motion in the opposite direction.

Therefore, the apparent velocity of the passenger with respect to an observer standing on the ground is:

v=V_t - v' = 50 - 2 = 48 m/s

And the direction is north, since this number is positive.

Learn more about velocity:

brainly.com/question/5248528

#LearnwithBrainly

8 0
3 years ago
Carbon Dioxide is used in photosynthesis is an example of which spheres interacting?
Harlamova29_29 [7]

With a partner, describe interactions in this scene, tracing the movement of materials or energy through all four of Earth's spheres if possible. Plants (biosphere) draw water (hydrosphere) and nutrients from the soil (geosphere) and release water vapor into the atmosphere.

6 0
3 years ago
A natural disaster speech​
Savatey [412]

Answer:

a sudden and terrible event in nature (such as a hurricane, tornado, or flood) that usually results in serious damage and many deaths The earthquake was one of the worst natural disasters of this century.

Explanation:

3 0
2 years ago
Read 2 more answers
In a digital multimeter, what changes inside the meter when you push the button to change from 200v range to the 20v range? by w
charle [14.2K]
So we want to know what changes inside the multimeter when we change the voltage range from 200 V to  20 V, by what factor and does it increase or decrease. What we want when trying to measure the voltage with a multimeter is that a minimal current passes trough the mulitmeter so when we change the voltage range, we decrease the resistance by a factor of 10 because the voltage is decreased by a factor of 10. 
6 0
3 years ago
Other questions:
  • A disoriented physics professor drives 3.25 km north, then 2.20 km west, and then 1.50 km south. Find the magnitude and directio
    15·1 answer
  • Which is the largest gas giant?
    7·1 answer
  • A car covers 72 kilometers in the first hour of its journey. In the next hour, it covers 90 kilometers. What is the amount of wo
    14·1 answer
  • Which of the following is NOT a characteristic of scientific knowledge? please help me
    6·2 answers
  • A series of pulses of amplitude 0.28 m are sent down a string that is attached to a post at one end. The pulses are reflected at
    14·2 answers
  • Atoms giving up valence electrons indicates that an ionic bond is present ture or false
    5·2 answers
  • ) A 1.0kW kettle contains 500g of boiling waterCalculate the time needed to evaporate all the water
    15·1 answer
  • The speed of all electromagnetic waves is 3. 00 × 108 meters per second. What is the wavelength of an X-ray with a frequency of
    5·1 answer
  • Control rods are used to slow down the reaction in the reactor core when the core becomes too hot. please select the best answer
    7·1 answer
  • If the slowest instruction in the SCA executes in 12.5 ns, then what is maximum system clock frequency in MHz
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!