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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.

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Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
klasskru [66]

As both the skater pushed each other with a force, skater 1 will acquire greater velocity than skater 2 with heavier mass.

Answer: Option C

<u>Explanation:</u>

Here we can understand the scenario with the example of a particle collision. When two particles of different masses, one being lighter and the other being heavier, there will be a movement and change in velocities.

Now, when these two particle collide with each other, there will be an equal and opposite thrust or reaction on both the particles. The particle with heavier mass will not be able to acquire more velocity because of its weight whereas the lighter particle will be pushed far away, being less in mass.

We can also say that the heavier particle will exert more force as compared to the lighter one and hence, can easily push it far away. this is all because the force is directly proportional to the mass of the object.

Hence, just like the particle, when two skater try to push each other with a significant amount of force, skater 2 will win to exert more force and therefore, skater 1 will acquire greater velocity as compared to skater 2.

3 0
3 years ago
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A 65-cm segment of conducting wire carries a current of 0.35 A. The wire is placed in a uniform magnetic field that has a magnit
Artyom0805 [142]

Answer: The angle between the wire segment and the magnetic field 66.42°

Explanation:

Please see the attachment below

8 0
3 years ago
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After school, several students skateboard at the nearby park. Your best friend, Erwin, is a good skateboarder and happens to fal
Alchen [17]

Answer:

A person who never gives up.

Explanation:

due to his passion for skateboarding he try's his never gives up until he will finally learns the trick.

3 0
3 years ago
200 what factors do Pressure depend?<br>1 What is a<br>thematical expression do you u​
Varvara68 [4.7K]

Answer:

pressure of solid depends on:

1/magnitude of the force

2/contact area

pressure in solid depends on:

1/depth inside the fluid.

2/density of the fluid.

3/Acceleration due to gravity.

Explanation:

1/magnitude of the force:the pressure is directly proportional to the magnitude of the force(thrust). The larger the force, the higher is the magnitude of pressure on the surface.

2/Contact area: the pressure is inversely proportional to the surface area of contact. The larger the contact area, lower is the magnitude of the pressure.

6 0
2 years ago
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). (a) W
bija089 [108]

Answer:

1411.8 N/m

Explanation:

From Hooke's law;

F= Ke

Where

F= force on the spring

K= force constant

e = extension

But e= 8.50 × 10^-2m

F= weight = 12.0 kg × 10 = 120 N

K = F/e = 120/8.50 × 10^-2

K= 1411.8 N/m

7 0
3 years ago
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