Humans and animals alike have critical periods of development.true false

Answers

Answer 1

Answer:

Answer: True

Explanation:

Human beings and animals both have their critical time period of development and if they fail to learn things at that time then they fail to learn it for the rest of their life.

The development period of the animals and human beings starts after the birth when a person starts learning and development.

Example: If a bird does not learns to sing at the critical periods then it will not learn it the whole life.

Answer 2

Answer: True, both humans and animals alike do have critical periods of development

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All of the following are true of models except
As a bat flies toward a wall at a speed of 6.0 m/s, the bat emits an ultrasonic sound wave with frequency 30.0 kHz. What frequency does the bat hear in the reflected wave?
Which image shows an example of the electromagnetic force in action?
Which of the following makes gravity increase?A.The mass of forming objects increases.B.The mass of forming objects decreases.C.The spherical shape of planets provides the momentum needed to increase gravity.D.The mass of forming objects is constantly the same.
A person uses a screwdriver to turn a screw and insert it into a piece of wood. The person applies a force of 20 newtons to the screwdriver and turns the handle of the screwdriver a total distance of 0.5 meter. How would these numbers be different if the person inserted a nail with a hammer instead of the screw with the screwdriver?A. The force applied would be greater, but the distance would be shorter.B. The force applied would be less, but the distance would be greater.C. The force applied would be the same, but the distance would be shorter.D. The force applied would be the same, but the distance would be greater.

Energy is measured in Joules (J). Which other quantity is measured in Joules?a. work
b. force
c. power
d. acceleration

Answers

I think the answer is B so force

Answer:

C. power

Explanation:

How does the use of mobile phones affect the stopping distance of a vehicle?

Answers

when a driver is using a phone,they pay less attention to the road and are less able to notice any changes

The tendency for an object in motion to remain in motion is called ____________________.

Answers

Answer: The correct answer is "inertia".

Explanation:

Inertia: It is the state of the object which resists any change in it.

Newton's first law is also called "Law of inertia".

If the object is travelling at constant velocity then it will remain travel at the constant velocity or if it is at rest then it will remain in resting position provided that it is acted upon by an external force.

If the external force is applied to an object then, the state of the object can be changed. Otherwise, it will remain in its state.

Therefore, the tendency for an object i motion to remain in motion is called inertia.

the first law of gravitational force (newton)

Which two changes would increase the electric force between two charged particles

Answers

In electrostatics, the electrical force between two charged objects is inversely related to the distance of separation between the two objects. Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.

hope this helped

The moon's mass is 7.35 × 1022 kg, and it moves around the earth approximately in a circle or radius 3.82 × 105 km. The time required for one revolution is 27.3 days. Calculate the centripetal force that must act on the moon. How does this compare to the gravitational force that the earth exerts on the moon at that same distance?

Answers

Explanation:

It is given that,

Mass of moon, $m=7.35* 10^(22)\ kg$

Radius of circle, $r=3.82* 10^(5)\ km=3.82* 10^(8)\ m$

The time required for one revolution is 27.3 days, t = 27.3 days

1 day = 86400 seconds

27.3 days = 2358720 seconds

Let v is the speed of moon around the circular path. It is given by :

$v=(2\pi r)/(T)$

$v=(2\pi * 3.82* 10^(8)\ m)/(2358720\ s)$

v = 1017.57 m/s

Let F is the centripetal force acting on the moon. It is given by :

$F=(mv^2)/(r)$

$F=(7.35* 10^(22)\ kg* (1017.57\ m)^2)/(3.82* 10^(8)\ m)$

$F=1.99* 10^(20)\ m/s^2$

So, the centripetal force that must act on the moon is $1.99* 10^(20)\ m/s^2$ . The gravitational force that the earth exerts on the moon at that same distance is also equal to $1.99* 10^(20)\ m/s^2$ . Hence, this is the required solution.

Which of the following is the best example of uniform circular motion? A.The motion of the second hand on a clock
B.A child swinging on a park swing
C.A golf ball after it has been hit off the tee
D.A skier curving back and forth across a wide slope

Answers

The only choice that describes ANYTHING moving in a circle is ' A '.

The park swing and the skier go back and forth.
The golf ball goes up and then down, once.

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