1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex Ar [27]
3 years ago
12

I need help please so fast

Physics
1 answer:
Simora [160]3 years ago
7 0

Answer:

DUumb

Explanation:

Duumb

You might be interested in
Examples of how thermal energy transfer by conduction, convection, or radiation.
____ [38]
Microwave Radiation. Microwave radiation utilizes short, high-frequency waves that penetrate food, which agitates its water molecules to create friction and transfer heat. If you're heating a solid substance, this heat energy is transferred throughout the food through conduction, while liquids do so through convection.
3 0
3 years ago
A force of 200N is being applied over an area measuring 0.75m^2
Sonbull [250]

Answer:

357KG

Explanation:

3 0
3 years ago
A toaster is plugged into a 132 volt household circuit it draws the amps of current If you use a toaster 2 hours a week how much
Ne4ueva [31]
There is a missing data in the text of the problem: the current drawn is 0.5 A (found on internet)

Solution:
The power used by the toaster is the product between the voltage V and the current I:
P=VI=(132 V)(0.5 A)=66 W=0.066 kW

The toaster is used for a time of 2 hours: t=2h, therefore the energy used is equal to
E=Pt =(0.066 kW)(2 h)=0.132 kWh
8 0
3 years ago
Why are Mars and Europa the top targets for the study of astrobiology?
alexira [117]

Answer:

The natural satelite Europa and the planet Mars are the two rock systems more likely to earth on their conditions all about solar system. Europa has a huge liquid water ocean and temperature is pretty similar to earth, Mars also has water but it's in solid state and the temperature also is good, not during the nights but still is good enough.

7 0
3 years ago
Physical science help!
Scrat [10]

Answer:

Let's begin by explaining that the <u>electromagnetic spectrum</u> is the set of electromagnetic radiations distributed in their different frequencies or wavelengths. So, if we go from the smallest wavelengths known up to now (because according to physics the electromagnetic spectrum is infinite and continuous) to the longest, the electromagnetic spectrum covers the following radiations:  

Gamma rays, X-rays, ultraviolet, visible light, infrared, radio waves and microwaves:

-Gamma rays: With a wavelength in the order of 10^{-12}m, is a type of ionizing radiation capable of penetrating matter quite deeply and is able to cause serious damage to the nucleus of the cells.

-X rays: With a wavelength between 1m and 10km. It is invisible to the human eye, capable of crossing opaque bodies and is also an ionizing radiation.

-Ultraviolet light (UV): Whose wavelength is approximately between 100 nm and 380 nm; is a type of electromagnetic radiation that is not visible to the human eye.  

-Visible light: This part of the spectrum is located between ultraviolet light and infrared light (400 nm - 800 nm). It should be noted, the fact the only part of the whole electromagnetic spectrum is visible to humans is because the receptors in our eyes are only sensitive to these wavelengths.

-Infrared: This type of radiation is not visible to the human eye, since its wavelengths are outside the visible spectrum (between 700 nm and 1 mm).  

These waves can be divided into:  

- Near infrared or long wave infrared: it is the least sensitive to color and is easily absorbed by water.  

- Medium or medium wave infrared: it is also insensitive to color and easily absorbed by water and many types of plastics and paints.  

- Far infrared or short wave infrared: it is more penetrating than the long wave and is good for heating metals, these waves also can pass through clear materials.  

This light has many uses, including heating lamps in physiotherapy and medical treatments, heat sensing devices, among others.

-Radio waves: This is a type of electromagnetic radiation with wavelengths between 10 m to 10,000 m. This type of electromagnetic waves is very well reflected in the ionosphere, the layer of the atmosphere through which they travel directly or using repeaters. In addition, this radiation is important in telecommunications.

3 0
3 years ago
Other questions:
  • An automobile starts from rest and travels down a straight section of road. The distance s (in feet) of the car from the startin
    5·1 answer
  • Two beams of coherent light start out at the same point in phase and travel different paths to arrive at point P. If the maximum
    10·1 answer
  • A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift i
    13·1 answer
  • (a) In the deep space between galaxies, the density of atoms is as low as 106 atoms/m^3 , and the temperature is a frigid 2.7 K.
    13·1 answer
  • Sam is walking through the park. He hears a police car coming down the street toward him. What happens to the sound of the siren
    13·2 answers
  • What must occur for a process to be a chemical reaction?
    6·1 answer
  • Which of the following is not a vector
    14·2 answers
  • Levers pivot on the<br> A. fulcrum<br> B. resistance arm<br> C. effort arm<br> D.moon
    9·1 answer
  • Marvin lifts a box over his head. The work done on the box is- -Negative work -No work -Positive work
    7·1 answer
  • find the work done be the force field f in moving an object along the curve pictured in the graph. do this by computing the work
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!