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
Nitella [24]
3 years ago
6

When you listen to the radio, watch TV, or cook food in a microwave, you are making use of properties of electromagnetic waves.

Which statement about electromagnetic waves is false?
A. White light is the absence of all color.
B. Higher-frequency electromagnetic waves have more energy.
C. The sun radiates several different types of electromagnetic energy.
D. The frequency of an electromagnetic wave is related to its wavelength.
Physics
1 answer:
DochEvi [55]3 years ago
5 0

Answer:

A. White light is the absence of all color.

Explanation:

It is false that white light is the absence of all color. In fact, white light is the presence of all colors in the spectrum.

Electromagnetic waves are waves that do not require any material medium for propagation. It is the interaction of electric and magnetic fields.

  • The higher frequency electromagnetic waves like the gamma-rays and x-rays have more energy.
  • The sun furnishes the universe with electromagnetic energy.
  • The higher the wavelength, the lesser the energy of the electromagnetic radiation.
You might be interested in
Which of these statements best describes the impact of ocean thermal power and current power on the environment?
zzz [600]

Answer:

A. Current power may decrease the fish population.

Explanation:

The statement that best describes the impact of ocean thermal power and current power on the environment is that current power may decrease the fish population.

The environment is made up of living and non-living components that co-exist and interact with one another.

  • Harnessing current power from ocean movement will seriously affect the fish population.
  • Most fishes are not sedentary. They move and glide through the water.
  • When current power causes a change in the environment of the fish.
  • This will definitely affect the normal condition prevalent in the body of water.
5 0
3 years ago
Calculate the angular velocity of a clocks second hand, its minute hand, and its hour hand. State in Rad/s. What is its angular
fenix001 [56]

Second hand:

1 rev per minute = (2π radians/minute) x (1 min/60sec) = π/30 rad/sec

Minute hand:

1 rev per hour = (2π radians/hour) x (1 hr/3600 sec) = π/1800 rad/sec

Hour hand:

1 rev per 12 hours = (2π rad/12 hr) x (1 hr/3600 sec) = π/21,600 rad/sec

As long as the clock is in good working order, and the hands are turning steadily at their normal rate, there is no angular acceleration.

8 0
3 years ago
The junction rule describes the conservation of which quantity? Note that this rule applies only to circuits that are in a stead
denis-greek [22]

Explanation:

The junction rule says that the sum of the currents going into a junction must equal the sum of the currents leaving a junction.  This describes the conservation of current.

5 0
3 years ago
Read 2 more answers
__________ is a type of molding in which thermoplastics are heated above melting temperature and, using an extruder, are forced
Ymorist [56]

Answer: The correct and is

D. Extrusion

Explanation:

What is extrusion?

Extrusion is a manufacturing process used to make basically pipes and hoses.

The pvc granules are melt into a liquid which is forced through a die, forming a long 'tube like' shape. The shape of the die determines the shape of the tube.

The extrusion is then cooled and forms a solid shape

Extrusion moulding is used to create products with a consistent cross-section.

4 0
3 years ago
Why does a balloon bursts if too much of air is blown into it​
solniwko [45]

Answer:

it is due to the elastic rubber and the air pressure builds up and the rubber expands

7 0
3 years ago
Other questions:
  • Hannah bought a potted rose plant. She’s looking for a place to put it. Where is the rose plant most likely to thrive?
    11·1 answer
  • If a projectile is fired with an initial velocity of v0 meters per second at an angle α above the horizontal and air resistance
    11·1 answer
  • True or false when two containers at the same temperature are brought together, no heat is transferred
    6·1 answer
  • A 79 kg person sits on a 3.7 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter
    8·1 answer
  • A ball of gas becomes a _____ when nuclear fusion begins in its core.
    15·1 answer
  • What is the average speed in 4 seconds going 8 meters
    7·2 answers
  • A skateboarder traveling at 7.0 meters per second rolls to a stop at the top of a ramp in 3.0 seconds. What is the skateboarder’
    8·1 answer
  • PLEASE HELP MEE <br> Read the question below and pick the correct answer.
    6·2 answers
  • Find the kinetic energy k of the block at the moment labeled b. express your answer in terms of k and a.
    9·1 answer
  • A 4.0-kg object has 72 J of kinetic energy.<br> Determine its speed.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!