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
Lady bird [3.3K]
4 years ago
13

Please help on this one?

Physics
1 answer:
Nonamiya [84]4 years ago
3 0

30 or c because 60-30=30

You might be interested in
Sound travels slowest through gases _____________________. Group of answer choices because the molecules of gas are close togeth
Juliette [100K]
Molecules is the anwser
4 0
3 years ago
HEEEYYYYY HELLO CAN YOU HELP ME WITH THIS ? PLEASE? ​
Lubov Fominskaja [6]

Answer:

Here are the names and symbols

H is Hydrogen

Au is Gold

Potassium is K

Mg is Magnesium

Zinc is Zn

Iron is Fe

Cl is Chlorine

Na is Natrium/Sodium

Copper is Cu

Ag is Silver

4 0
3 years ago
The heaviest invertebrate is the giant squid, which can have a weight of about 1.7 tons spread out over its length of 68 feet. w
DENIUS [597]
In science and engineering, the weight<span> of an object is usually taken to be the force on the object due to gravity. It is calculated by multiplying the mass with the gravitational acceleration.

W = mg = 1700 (9.81) = 16677 N

Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
What is a descriptions of an animal cell's nucleus?
Marat540 [252]
<span>The nucleus controls many of the functions of the cell(by controlling protein synthesis) and contains DNA (in chromosomes). The nucleus is surrounded by the nuclear membrane. ribosome - small organelles composed of RNA-rich cytoplasmic granules that are sites of protein synthesis.</span>
5 0
4 years ago
When water waves meet, they can combine to form new waves. In constructive waves, a ________ amplitude wave is formed. In destru
Sever21 [200]

Answer:

In constructive waves, a <u><em>greater</em></u> amplitude wave is formed. In destructive waves, a wave with a <u><em>smaller</em></u> amplitude is formed. (option A)

Explanation:

Interference is called the superposition or sum of two or more waves. Depending mainly on the wavelengths, amplitudes and the relative distance between them, there are two types of interference: constructive or destructive.

Constructive interference occurs when there are two waves of identical or similar frequency (both have motions equal to an even number of similar wavelengths) and overlap the peak of one with the peak of the other. These effects add together and make a wave of greater amplitude. All of this is possible because the waves were in the same phase in the beginning (in the same position).

Destructive interference occurs in the opposite case to constructive. When the crest of one wave overlaps the valley of the other, they cancel out since they are in different phases when they overlap (they were in different positions). That is, as in the case of constructive waves they were added, in the case of destructive waves they cancel out (subtract).

So, <u><em>In constructive waves, a greater amplitude wave is formed. In destructive waves, a wave with a smaller amplitude is formed. </em></u>

3 0
3 years ago
Other questions:
  • A rock with a mass of 25 kg has a weight of 40.8 n on the moon. what is the value of the acceleration of gravity (g) on the moon
    14·1 answer
  • A(n) ____________ image cannot be projected and forms where light rays appear to originate.
    5·2 answers
  • What causes sedimentary rock to change into metamorphic rock
    7·1 answer
  • A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force)
    5·1 answer
  • Gregor Mendel finished his pea plant experiments in 1863 and published his results in 1866. However, few scientists saw Mendel's
    6·1 answer
  • Abby is writing a biography of Isaac Newton. He was a brilliant English scientist who developed the law of universal gravitation
    5·1 answer
  • If a wave has a wavelength of 2m and a frequency of 500 hz, what is its speed
    13·1 answer
  • A 20.0 kg box slides up a 12.0 m long incline at an angle of 30.0 degrees with the
    13·1 answer
  • A student left a bar of chocolate in the sun on a hot day. As the chocolate melted, which property changed?
    5·1 answer
  • Please help!! Physics homework
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!