Which types of muscle enables your stomach to produce a churning sound
All types of
Crystals can have all types of bonds between their atoms.
- Crystals are solid materials which contains atoms, molecules or ions that are arranged in a complex structure forming a crystal lattice.
- Crystals may have all types of bonds, these includes; ionic bonds, formed as a result of transfer between a metallic bond and a non-metal atom, Covalent bond, formed as a result of sharing electrons between non metal atoms, hydrogen bonds, metallic bonds Van der Waals bonds, etc.
What happens when the electron moves from the first energy level to the second energy level? Energy is absorbed, and an emission line is produced. Energy is released, and an emission line is produced. Energy is absorbed by the atom. Energy is lost from the atom.
Emission lines occur only in the case of transitions from higher to lower energy levels in which energy is emitted.
E = nhc / λ
Also, Power = Energy / time
E = 20 x 10⁻³ x 60 x 60
E = 108 J
108 = (2.29 x 10²⁰ x 6.63 x 10⁻³⁴ x 3 x 10⁸) / λ
λ = 4.22 x 10⁻⁷ m
Which one of the following scenarios accurately describes a condition in which resonance can occur?End of exam A. A person is holding a tuning fork on one end of a football field and another person is holding a separate tuning fork on the opposite end of the field. B. A pipe's length is equal to 1∕2 of the wavelength of the sound waves produced by a tuning fork vibrating over one end of the pipe that's open to the air at both ends.C. A vibrating tuning fork is struck and begins to vibrate as the object used to strike it is placed away from the tuning fork. D. A column of air has a height equal to 1∕8 of the wavelength of the sound waves produced by a tuning fork vibrating over the column of air in an open pipe that's partially immersed in water.
Which type of boundary is modeled? A. The formation of the Himalaya mountains? B. The formation of Greenland, a volcanic island country in northern Atlantic Ocean? (The types of boundaries there are is Transform, Divergent, Convergent)
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Your boss asks you to adjust the temperature so that a sound wave travels more quickly through the air you increase the temperature from 30 c to 36 c what's the velocity of the sound wave at this new temperature
initial speed of sound at 30 degree C
final speed of sound at 36 degree C
As we know that velocity of the sound in air is given by the formula as
here we know that
t = temperature or air in degree celcius
so here at 30 degree celcius we can say that
now at 36 degree C the speed of sound is given as
Which one of the following is a characteristic of a metal? A .Becomes negative when combined with other elements. B. Changes the color of litmus paper to red. C. Conducts heat readily. D. Reacts with bases to produce salts.
Which of the following is not true about warming up a: warming up what's the heart rate increase gradually b: warming up increase blood flow to the muscles c warming up can help prevent energy to muscles, ligaments and joints d: warming up only needs to be done when performing cardiovascular exercses
Why is UVA light considered a mutagen? It penetrates the skin and can cause mutations. It can be prevented by wearing a protective vest. It produces chemicals that can be inhaled. It is found in synthetic dyes and cosmetics.
the answer is A :)))))
whether "its speed" refers to the source or the sound.
When the source of a sound is moving relative to the listener, then
the listener may hear a higher- or lower-pitch sound than what the
source is actually emitting.
Which one of the following scenarios accurately describes a condition in which resonance can occur? A.) vibrating tuning fork is struck and begins to vibrate as the object used to strike it is placed away from the tuning fork. B. ) A pipe's length is equal to 1⁄2 of the wavelength of the sound waves produced by a tuning fork vibrating over one end of the pipe that's open to the air at both ends. C.) A person is holding a tuning fork on one end of a football field and another person is holding a separate tuning fork on the opposite end of the field. D.) A column of air has a height equal to 1⁄8 of the wavelength of the sound waves produced by a tuning fork vibrating over the column of air in an open pipe that's partially immersed in water.
As long as both mirrors are set at 45% and the same size then you see the same as is reflected in the upper mirror
Put a lens in the middle of the tube
We use mirrors when we drive cars ect
Normally they are set across from a concealed entrance or one that is hard to see both ways like the inside of a hairpin bend. Sometimes only to help in one direction.
Sonar which is sound waves that are sent out at a set rate then reflected by objects. The longer the gap between the two the further away it is, They still use periscopes to target boats though.
The periscope can only reflect what is outside so if you could see it because there is enough light then Yes. If you could not see it because it is dark then No unless you get into Info-Red light or Image Intensifying systems as well