At what age can a child begin to form large concepts such as objects, people, animals, and events?

icang [17]

Kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously. So, A.

3 0

4 years ago

Before giving an injection, a nurse dabs some alcohol onto the patient`s arm. This makes the patient`s skin feels cold. Explain

mezya [45]

Answer:

Before giving an injection, a nurse dabs some alcohol onto the patient`s arm. This makes the patient`s skin feels cold. Explain Why ?

<em> Evaporative cooling makes this to be possible</em>

Explanation:

The concept

For a liquid to evaporate, there must be a breakdown of the bond between the molecules of the liquid. These bonds are broken when the molecules gain heat energy. So basically evaporation occurs when the molecules of the substance gain energy in form of heat.

Our Scenario

Just like the way our body excretes sweat on a sunny day, alcohol takes energy from the skin to evaporate. The bond holding the molecules of alcohol breaks faster due to its low boiling point and this account why it evaporates faster. The sudden evaporation of alcohol when dabbed on the skin results in quick utilization of heat energy making the skin feel cold for some time.

The utilization of heat energy from the skin results in evaporation cooling which makes the skin feel colder.

7 0

3 years ago

What happens when you shuffle across a carpeted floor?

Alex73 [517]

Youhh pick upp electrons from the floor and become positively charged

3 0

3 years ago

_______________ will occur if a vehicle collides with an object travelling in the opposite direction rather than colliding with

dsp73

More impact will occur if a vehicle collides with an object traveling in the opposite direction rather than colliding with a stationary object.

<h3>What is Collision?</h3>

A collision may be described as a circumstance in which two or more bodies exert forces on each other in a moderately short period of time.

When vehicles collide with an object traveling in the opposite direction causes more impact because both bodies exert equal forces on to each other. While a stationary object bears less force, and hence the collision causes a little or less impact on the bodies.

Therefore, More impact will occur if a vehicle collides with an object traveling in the opposite direction rather than colliding with a stationary object.

To learn more about Collision, refer to the link:

brainly.com/question/24915434

#SPJ1

3 0

2 years ago

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular alumin

gogolik [260]

Answer:

$7.54\cdot 10^{-7} C$