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
Maru [420]
4 years ago
8

NEED IT ASAP PLEASE 3 examples of how we use physics in our everyday life. Please explain throughly.

Physics
1 answer:
Flauer [41]4 years ago
3 0

Answer:

  1. Alarm Clock. The buzzing sound of an alarm clock helps you wake up in the morning as per your schedule. The sound is something that you can’t see, but hear or experience.
  2. Cell Phones Cellphones have become like Oxygen gas in modern social life. Hardly, anyone would have been untouched by the effects of a cell phone. Whether conveying any urgent message or doing incessant gossips, cellphones are everywhere. But do you know how does a cell phone work? It works on the principle of electricity and the electromagnetic spectrum, undulating patterns of electricity and magnetism.
  3. Walking.Now, when you get ready for your office/school, whatever medium of commutation is, you certainly have to walk up to a certain distance. You can easily walk is just because of Physics. While you have a walk in a park or on a tar road, you have a good grip without slipping because of a sort of roughness or resistance between the soles of your shoes and the surface of the road.

Explanation:

physical is related to things perceived through the senses as opposed to the mind; tangible or concrete.

You might be interested in
The gravitational potential energy of an object is equal to its weight multiplied by its
Elina [12.6K]

Answer:

Height above a surface

Explanation:

Gravitational potential energy is the energy which an object possesses due to its position above a surface.

It is also the amount of work a force has to do in order to bring an object from a particular position to a point of reference.

It is given mathematically as:

P. E. = m*g*h

where m = mass of the body

g = acceleration due to gravity

h = height above a surface

m*g represents the weight of the object.

Hence, Gravitational potential energy is the product of an object's weight and its height above a surface/reference point.

3 0
4 years ago
Which source should be avoided when conducting scientific research?
MissTica
Probably wikipedia or unreliable internet sources in general
5 0
3 years ago
Read 2 more answers
Three polarizing filters are stacked, with the polarizing axis ofthe second and third filters at angles of 22.2^\circ and 68.0^\
andreev551 [17]

Answer:

I₂ = 25.4 W

Explanation:

Polarization problems can be solved with the malus law

     I = I₀ cos² θ

Let's apply this formula to find the intendant intensity (Gone)

Second and third polarizer, at an angle between them is

    θ₂ = 68.0-22.2 = 45.8º

    I = I₂ cos² θ₂

    I₂ = I / cos₂ θ₂

    I₂ = 75.5 / cos² 45.8

    I₂ = 155.3 W

We repeat for First and second polarizer

   I₂ = I₁ cos² θ₁

   I₁ = I₂ / cos² θ₁

   I₁ = 155.3 / cos² 22.2

   I₁ = 181.2 W

Now we analyze the first polarizer with the incident light is not polarized only half of the light for the first polarized

    I₁ = I₀ / 2

   I₀ = 2 I₁

   I₀ = 2 181.2

   I₀ = 362.4 W

Now we remove the second polarizer the intensity that reaches the third polarizer is

    I₁ = 181.2 W

The intensity at the exit is

    I₂ = I₁ cos² θ₂

    I₂ = 181.2 cos² 68.0

   I₂ = 25.4 W

8 0
4 years ago
What are the wavelengths of electromagnetic wave in free space that have the following frequencies?
Ne4ueva [31]

Explanation:

Given that,

(a) Frequency, f_1=4\times 10^{19}\ Hz

All electromagnetic wave moves with the speed of light. It is given by :

c=f\lambda

\lambda_1=\dfrac{c}{f_1}\\\\\lambda_1=\dfrac{3\times 10^8}{4\times 10^{19}}\\\\\lambda_1=7.5\times 10^{-12}

(b) Frequency, f_2=5.5\times 10^{1=9}\ Hz

All electromagnetic wave moves with the speed of light. It is given by :

c=f\lambda

\lambda_2=\dfrac{c}{f_2}\\\\\lambda_2=\dfrac{3\times 10^8}{5.5\times 10^{9}}\\\\\lambda_2=0.054\ m

Hence, this is the required solution.

7 0
3 years ago
A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. It ta
Marina CMI [18]

Answer:

(a) The spring constant is 426N/m

(b) The mass is 5.65kg

Explanation:

(a) Energy stored in the spring (E) = 3.6J, extension (e) = 0.13m

E = 1/2Ke^2

3.6 = 1/2 × K × 0.13^2

K (spring constant) = 3.6×2/0.0169 = 426N/m

(b) F = Ke = 426 × 0.13 = 55.38N

Assuming the maximum acceleration (a) is 9.8m/s^2

Mass (m) = F/a = 55.38/9.8 = 5.65kg

7 0
4 years ago
Other questions:
  • "what shape are the pebble-sized particles that make up the rock?"
    14·1 answer
  • In a uniform electric field what factors does the electrical potential energy depend on
    9·1 answer
  • How much heat is needed to raise the temperature of 10g of water by 16°C?
    15·1 answer
  • An elevator motor moves a car with six people upward at a constant speed of 3.10 m/s. The mass of the elevator is 8.20 ✕ 102 kg,
    12·1 answer
  • One car has two and a half times the mass of a second car, but only half as much kinetic energy. When both cars increase their s
    9·1 answer
  • An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object?
    12·1 answer
  • Two flywheels of negligible mass and different radii are bonded together and rotate about a common axis (see below). The smaller
    5·1 answer
  • A 50.0-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 20.0 m/s. A high-speed camera records this ev
    8·1 answer
  • Under what conditions would the frictional forces be expected to be equal magnitude for a car moving up an incline and a car mov
    13·1 answer
  • Suppose the wavelength of the light is 460 nm. how much farther is it from the dot on the screen in the center of fringe e to th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!