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strojnjashka [21]
3 years ago
5

. According to Piaget’s stages of cognitive development, the child does not differentiate between self and other objects. The ch

ild repeats rewarding activities, discovers new ways to get what he or she wants, and may have imaginary friends. Which period is described?
Physics
2 answers:
daser333 [38]3 years ago
4 0
Iouhkpuvivgpgpcpg. Bigot octyou coyote
natali 33 [55]3 years ago
3 0

Answer: sensoriomotor stage.

Explanation:

The characteristics fescribed correspond to Piaget's sensoriomotor stage. The sensorimotor stage covers children from birth to 18–24 months old. Some characteristics are motor activity without use of symbols, learning through experience, repetition and trial and error. The objective of this stage is to understand object permanence and distinvtion of self and others.

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Plants need to....................synthesize
koban [17]

Answer:

nitrogen

Explanation:

because I also had this in exam and I was correct

5 0
2 years ago
It is found that the most probable speed of molecules in a gas at equilibrium temperature
kaheart [24]

Answer:

\frac{T_2}{T_1} = 1

Explanation:

The root mean square velocity of the gas at an equilibrium temperature is given by the following formula:

v = \sqrt{\frac{3RT}{M} }

where,

v = root mean square velocity of molecules:

R = Universal Gas Constant

T = Equilibrium Temperature

M = Molecular Mass of the Gas

Therefore,

For T = T₁ :

v = \sqrt{\frac{3RT_1}{M} }

For T = T₂ :

v = \sqrt{\frac{3RT_2}{M} }

Since both speeds are given to be equal. Therefore, comparing both equations, we get:

\sqrt{\frac{3RT_1}{M} }=\sqrt{\frac{3RT_2}{M} }\\\\\frac{T_2}{T_1} = 1

8 0
3 years ago
What is the wavelength of a wave traveling at 300 m/s if the frequency is 10 Hz?
lions [1.4K]

Answer:

30 m

Explanation:

The wavelength of a wave is found by the velocity divided by the frequency. Therefore, the wavelength is (300 m/s)/(10 Hz) = 30 m

I hope this helps! :)

8 0
2 years ago
A system consists of a disk rotating on a frictionless axle and a piece of clay moving toward it, as shown in the figure above.
cestrela7 [59]

Explanation:

Forgive me If I am wrong, it's been a while since I've studied Torque.

The formula for the angular momentum is

momentum= I*w.

We can also write I*W as 1/2MR^2 * W so the extra mass coming from the block of clay would most likely cause the angular momentum to increase from the amount it was before.

6 0
2 years ago
Now instead a 3-mw laser of wavelength λ = 760 nm is directed into the interferometer (with the mirror m1 at the displacement ca
slavikrds [6]

power received will always remain same and does not depends on the distance

it will be same as the power of source

P = 3 mW

now the energy released by one photon is given as

E = \frac{hc}{\lambda}

E = \frac{6.6* 10^{-34}* 3 * 10^8}{760 * 10^{-9}}

E = 2.6 * 10^{-19} J

now let say N photons per second released

N * 2.6 * 10^{-19} = 3 * 10^{-3}

N = 1.15* 10^{16} per\: second

7 0
3 years ago
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