Baker's weight and mass are measured on Earth and on the moon. Which measurement is the same in both places?

Pierce conducts an experiment in which waves collide in a way that the energy increases. What has occurred? refraction reflectio

Vitek1552 [10]

Answer:

constructive interference.

Explanation:

Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.

Generally, the most commonly used electromagnetic wave technology in telecommunications is radio waves.

Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m.

In this scenario, an experiment is conducted by Pierce in which waves collide in a way that the energy increases. Thus, this is an example of constructive interference i.e constructive interference has occurred.

An interference occurs when two pair of waves such as sound and light waves pass through each other i.e crossing each other's path while traveling through the same medium or space.

3 0

3 years ago

Read 2 more answers

How much energy is transferred by five 60 watt bulb in 20 minutes

Annette [7]

(5 bulbs)·(60 watts/bulb)·(20 minutes)·(1 joule per sec/watt)·(60 sec/minute)

= (5·60·20·1·60) (bulb·watt·minute·joule per sec·sec) / (bulb·watt·minute)

= 360,000 joules
_____________________________________________

Another way:

Five 60-watt bulbs = 300 watts = 0.3 kilowatt

20 minutes = 1/3 hour

(0.3 kilowatt) · (1/3 hour) = 0.1 kilowatt-hour

8 0

3 years ago

Metals are good conductors of electricity because __________ . A) they are easily reduced and oxidised. B) they are easily ionis

Advocard [28]

Answer:

a

Explanation:

because they are easily reduced and oxidised

3 0

3 years ago

Are these bones axial, appendicular or both?

Rom4ik [11]

Answer:

Axial and Appendicular Skeletons The axial skeleton forms the central axis of the body and consists of the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of the pectoral and pelvic girdles, the limb bones, and the bones of the hands and feet. Figure 6.41.

Explanation:

6 0

3 years ago

1. How much electrical energy is needed to bring two charges Q1= 5.5 x 10-7C and Q2= 1.7 x 10-6 C from infinity to where they ar

kati45 [8]

Answer:

The electrical energy needed is 8.415*10⁻³ N

Explanation:

Energy is the ability of a body to make changes or work.

By separating or joining two electric charges a distance (for example, a radius r) within their electric fields, you are taking away or giving the electric charges energetic potentials, relative to each other. By releasing these charges, they will attract or repel each other, releasing that acquired electrical energy.

In other words, electric potential energy is linked to the particular configuration of a conglomerate of point charges in a defined system.

That is, it calculates the capacity of an electrical system to carry out a task based exclusively on its position or configuration. So, it is a kind of energy stored in the system, or the amount of energy that it is capable of delivering.

Thus, a charge will exert a force on any other charge and the potential energy is the result of the set of charges.

The electric potential energy that has a point charge q in the presence of another point charge Q that are separated by a certain distance r is:

$Ep=K*\frac{Q1*Q2}{r^{2} }$

where:

Ep is the electric potential energy. It is measured in Newton (N).
Q1 and Q2 are the values of the two point charges. They are measured in Coulombs (C).
r is the value of the distance that separates them. It is measured in meters (m).
K is the constant of Coulomb's law. For vacuum its value is approximately 9*10⁹ N*m²/C²

In this case:

Q1=5.5*10⁻⁷ C
Q2=1.7*10⁻⁶ C
r=1 m

Replacing:

$Ep=9*10^{9}\frac{N*m^{2} }{C^{2} } *\frac{5.5*10^{-7}C *1.7*10^{-6}C }{(1m)^{2} }$

Solving:

Ep= 8.415*10⁻³ N

The electrical energy needed is 8.415*10⁻³ N

4 0

3 years ago