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xxMikexx [17]
3 years ago
13

True or false? All waves need a medium in order to travel

Physics
2 answers:
Art [367]3 years ago
4 0
That's false.  Mechanical waves (like sound and ocean waves) do
need a medium to travel in, but electromagnetic waves (like radio
and light) don't.
Pavlova-9 [17]3 years ago
3 0
That is false because electromagnetic waves can travel without a medium.

hope this helps :)


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Quiz Review Problems
zlopas [31]

The momentum of a neutron p = 586.25 kg m / s.

<u>Explanation:</u>

The product of mass and the velocity gives the momentum of an object and it is a vector quantity. It is denoted by the letter p. The unit of momentum is kilogram meter per second (or) kg m / s.

Given mass m = 1.675 \times 10,            velocity v = 3.500 \times 10

                  Momentum, p = mv

where m represents the mass,

          v represents the velocity.

                   momentum p = (1.675 \times 10) \times (3.500 \times 10)

                   momentum p = 586.25 kg m / s.

5 0
3 years ago
Why would ash from a volcano make the temperature drop?
Komok [63]
First, volcanic eruptions produce major quantities of carbon dioxide (CO2), a gas known to contribute to the greenhouse effect. ... The small ash particles decrease the amount of sunlight reaching the surface of the earth and lower average global temperatures.
7 0
3 years ago
A marble rolls 269cm across the floor with a constant speed of in 44.1cm/s.
Marrrta [24]

Answer:

t = 6.09 seconds

Explanation:

Given that,

Speed, v = 44.1 cm/s

Distance, d = 269 cm

We need to find the time interval of the marble. Speed is distance per unit time.

v=\dfrac{d}{t}\\\\\implies t=\dfrac{d}{v}\\\\t=\dfrac{269\ \text{cm}}{44.1\ \text{cm/s}}\\\\t=6.09\ s

Hence, the time interval of the marble is 6.09 seconds.

6 0
4 years ago
A drawback of burning biomass to produce electricity is that it is ___.
attashe74 [19]

Answer: Unsustainable wood harvesting can lead to deforestation, soil erosion, and desertification.

Explanation: you welcome

4 0
3 years ago
Help plz 100 points and guaranteed Brainliest
nadezda [96]

Answer:

Guy above is correct on everything!

Explanation:

I know this because I researched and found the answers, but the guy above has all the right answers, so yes, he is correct! Give him a "Thanks"!

4 0
4 years ago
Read 2 more answers
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