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
kvv77 [185]
2 years ago
10

a wave's amplitude is 0.5 meters. if its amplitude is increased to 1 meter, how much does its energy change?​

Physics
1 answer:
AfilCa [17]2 years ago
5 0
The energy becomes 4 times greater.
You might be interested in
Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill.Which
Rufina [12.5K]
I think this one's B. energy and work are both measured in joules.
7 0
3 years ago
Read 2 more answers
A device that changes mechanical energy to electrical energy by rotating a coil of wire through a magnetic field is called a(an)
tigry1 [53]
A device that changes mechanical energy to electrical energy by rotatin a coil of wire through a magnetic field is called B. Generator
4 0
3 years ago
Read 2 more answers
A horizontal force, F1 = 65 N, and a force, F2 = 12.4 N acting at an angle of θ to the horizontal, are applied to a block of mas
Nezavi [6.7K]

Answer:

(a) FN = 24.18 N

(b) a = 22.87 m/s²

Explanation:

Newton's second law of the  block:

∑F = m*a Formula (1)

∑F : algebraic sum of the forces in Newton (N)

m : mass in kilograms (kg)

a : acceleration in meters over second square (m/s²)

Forces acting on the box

We define the x-axis in the direction parallel to the movement of the block on the surface   and the y-axis in the direction perpendicular to it.

F₁ : Horizontal force

F₂ : acting at an angle of θ to the horizontal,

W: Weight of the block  : In vertical direction

FN : Normal force : perpendicular to the direction the surface

fk : Friction force: parallel to the direction to the surface

Known data

m =3.1 kg : mass of the  block

F₁ = 65 N,  horizontal force

F₂ = 12.4 N acting at an angle of θ to the horizontal

θ = 30° angle θ of F₂ with respect to the horizontal

μk = 0.2 : coefficient of kinetic friction between the block and the surface

g = 9.8 m/s² : acceleration due to gravity

Calculated of the weight  of the block

W= m*g  = (3.1 kg)*(9.8 m/s²) = 30.38 N

x-y F₂ components

F₂x = F₂cos θ= (12.4)*cos(30)° = 10.74 N

F₂y = F₂sin θ= (12.4)*sin(30)° = 6.2 N

a)Calculated of the Normal force  (FN)

We apply the formula (1)

∑Fy = m*ay    ay = 0

FN+6.2-30.38 = 0

FN = -6.2+30.38

FN = 24.18 N

Calculated of the Friction force:

fk=μk*N=  0.2* 24.18 N = 4.836 N

b) We apply the formula (1) to calculated acceleration of the block:

∑Fx = m*ax ,  ax= a  : acceleration of the block

F₁ + F₂x -fk = ( m)*a

65 N + 10.74 -4.836 = ( 3.1)*a

70.904 = ( 3.1)*a

a = (70.904 ) / ( 3.1)

a = 22.87 m/s²

4 0
2 years ago
About light and energy
Sophie [7]
E = MC^2. Albert Einstein's proven formula. When mass travels at the square of speed of light, the mass gets converted into energy
7 0
3 years ago
g An inductor used in a dc power supply has an inductance of 12.0 H and a resistance of It carries a current of 0.300 A. (a) Wha
valkas [14]

Answer:

Explanation:

Energy of an inductor = 1/2 L i²

L is inductance , i is current .

= 1/2 x 12 x .3²

= .54 J

4 0
3 years ago
Other questions:
  • Which statement best describes the relationship between boron and silicon?
    5·1 answer
  • What is the usual time ice takes to evaporate above a Bunsen burner?
    13·1 answer
  • Newton's second law of motion describes inertia.<br> True<br> False
    11·2 answers
  • Light rays in a material with index of refraction 1.31 can undergo total internal reflection when they strike the interface with
    9·1 answer
  • Why Is it summer in the Southern Hemisphere when it is winter in the northern hemisphere
    10·2 answers
  • Name two conditions that are necessary for fusion to occur in the Sun’s core.
    9·2 answers
  • Ask Your Teacher The same force that gives the standard 1 kg mass an acceleration of 1.00 m/s2 acts first on body A, producing a
    5·1 answer
  • What are the names of the components (each shown with a leader and a line) of a circuit shown in the diagram?
    5·1 answer
  • Bibek went to the swimming pool. he saw the pool to be shallower and is redy to jump into the swimmingpool . is it proper for hi
    11·1 answer
  • True or false<br><br>energy can neither be created nor be destroyed<br>​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!