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
Nady [450]
1 year ago
11

Select all the wave properties that can change how we perceive light waves.amplitudeamplitudecrestscreststimetimefrequency

Physics
1 answer:
ASHA 777 [7]1 year ago
6 0

The properties that change how we perceive light waves are the following:

The amplitude of the light wave changes the brightness of light relative to other light waves of the same wavelenghth.

The frequency of the light wave changes the color and the type of the light wave.

You might be interested in
If a suspended object A is attracted to a charged object B, can we conclude that A is charged?
spayn [35]
Not necessarily, object A could also be neutral, and becoming a dipole due to object B's charge. A charged object can induce a dipole in a neutral object, and that object would then become attracted without being charged.
8 0
3 years ago
A power plant running at 31 % efficiency generates 270 MW of electric power. Part A At what rate (in MW) is heat energy exhauste
True [87]

Answer:

i did not learn this yet im going into 6th grade im still in 5th

i dont know

6 0
2 years ago
Please help with problem it is much appreciated
Ray Of Light [21]

a. linear pairs, when added together, the angles will make 180 degrees, or a straight line. In this case No, for when you combine the two angles, it is not a straight line

b. False. Vertical angles make two opposite angles that are congruent

c. True. When added together, angles 1 and 4 make a straight line

d. False. As stated for question b, the two opposite angles must be congruent

hope this helps

8 0
3 years ago
Susan makes the following entry in her notebook: “On Friday we were given a blue liquid in a shallow container. We placed it on
Nat2105 [25]

Answer:

Explanation:

a. From the information provided in the question, the blue liquid is a solution. This is because a solution is a type of homogeneous mixture (that has an evenly distributed solute in a solvent) which is the reason the liquid was said to be blue (and not immiscible blue solid in a liquid) but after been exposed to heat became just a blue solid. Typically, a solution has a solute and a solvent (combined), the solute here is the blue solid while the solvent is the liquid that made the combination a liquid.

b. Since the dish containing the liquid was placed on a windowsill, it can be assumed that the dish was subjected to heat from the sun which caused the liquid (in the solution) to evaporate after exposure to the heat from the sun (over the weekend) leaving the blue solid solute (of the solution) to remain in the dish. This can be referred to as evaporation to dryness in separation techniques (if the goal was to intentionally separate the solid solute from the liquid solvent).

4 0
3 years ago
In the Hunger Games movie, Katniss Everdeen fires a 0.0200-kg arrow from ground level to pierce an apple up on a stage. The spri
egoroff_w [7]

Answer:

a) v=99.8584\ m.s^{-1}

b) v'=99.366\ m.s^{-1}

Explanation:

Given:

mass of the arrow, m=0.02\ kg

stiffness constant of the bow, k=330\ N,m^{-1}

distance of pulling back the arrow on the bow from its mean position, \Delta x=0.55\ m

height of the apple targeted, h=5\ m

<u>Force on the arrow due to the stiffness of the bow:</u>

F=k.\Delta x

F=330\times 0.55

F=181.5\ N

Now the acceleration of the arrow upwards:

a=\frac{F}{m}

a=\frac{181.5}{0.02}

a=9075\ m.s^{-2}

a) For the course of motion when the arrow leaves the bow after the stretch is relaxed we consider that the arrow left the bow after its string goes to the mean position. During this phase the arrow also faces gravity in the downward direction.

Using the equation of motion:

v^2=u^2+2(a-g).\Delta x

where:

v= velocity with which the arrow leaves the bow

u= initial velocity of the arrow after it left

v^2=0^2+2\times (9075-9.81)\times 0.55

v=99.8584\ m.s^{-1}

b) Now when the arrow travels up then it is under a constant gravitational force acting opposite to the motion.

<u>Using eq. of motion:</u>

v'^2=v^2-2\times g.h

where:

v'= final velocity when the arrow hits the target

v= initial velocity after the arrow has been launched

v'^2=99.8584^2-2\times 9.81\times 5

v'=99.366\ m.s^{-1}

3 0
3 years ago
Other questions:
  • A 3.50-meter length of wire with a cross-sectional area of 3.14 × 10-6 meter2 is at 20° Celsius. If the wire has a resistance of
    11·1 answer
  • Which of the following is associated with Earth’s lithosphere?
    8·1 answer
  • The following represents a mass attached to a spring oscillating in simple harmonic motion. X(t) = 4.0 cos(3.0t +0.10) units of
    5·1 answer
  • The moon's gravity is one-sixth that of the earth. what is the period of a 2.00m long pendulum on the moon
    6·1 answer
  • Need help with these please
    11·2 answers
  • To travel at constant speed, a car engine provides 24KW of useful power. The driving force on the car is 600N. At what speed doe
    9·1 answer
  • Why are objects measured?​
    7·1 answer
  • I need help solving my homework problem , can somebody help me please . This class is physics two . My question is “ where the p
    10·1 answer
  • As thermal energy is added to a sample of water, the kinetic energy of its
    5·1 answer
  • List three conditions for current to flow in a circuit.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!