which scenario shows radiation
The air under a reading lamp is warmed
Eggs cook in a skillet
Eggs boil in a pot of water
Air warmed by a floor radiator rises to the top of a room, forcing cooler air downward
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
Temperature affects the speed of sound in a medium by changing the speed of sound waves. This is due to the change in the kinetic energy of the particles in the medium. When temperature increases, the average speed of the particles in the medium increases, which causes them to collide more frequently. As a result, the speed of the sound waves also increases.
Therefore, the correct option is: As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
A radiotherapy machine is used to treat a cancer patient - this scenario involves radiation.
So which one is it
The scenario where a radiotherapy machine is used to treat a cancer patient involves the use of radiation.
which scenario shows radiation?
A. The air under a reading lamp is warmed
B. Eggs cook in a skillet
C. Eggs boil in a pot of water
D. Air warmed by a floor radiator rises to the top of a room, forcing cooler air downward
The scenario that involves radiation is not listed in the options given.
A student want to use the equation for Coulomb's Law to calculate the electric force between two charges. Which shows all of the information she will need to preform the calculation.
Coulomb's constant, the distance between the charges
Coulomb's constant, both charges measured in Coulombs
Both charges measured in Coulombs, the distance between the charges
Coulomb's constant, both charges measured in Coulombs, and the distance between the charges
The student will need Coulomb's constant, both charges measured in Coulombs, and the distance between the charges to perform the calculation using Coulomb's Law equation. So, the correct option is: Coulomb's constant, both charges measured in Coulombs, and the distance between the charges.
how do electromagnets cause a maglev train to levitate above the track
Batteries provide electric energy to the electromagnets int the train
Magnets in the sides of the tracks constantly repel and attract magnets in the sides of the train
Magnets in the track and magnets in the bottom of the train repel each other
Magnets in the track and magnets in the bottom of the train attract each other
Electromagnets in the train generate a magnetic field that interacts with the magnetic field in the magnetized track, causing the train to levitate and move forward. Magnets in the sides of the track and magnets in the bottom of the train repel each other due to their magnetic fields. Hence, the correct option is: Magnets in the track and magnets in the bottom of the train repel each other.
what happens to sound waves from an object as it moves toward you (1 point)
A. The pitch gets lower because of an increase in wavelength
B. The pitch gets higher because of an increase in wavelength
C. The Pitch gets higher because of an increase in frequency
D. The pitch get lower because of an increase in frequency
As an object moves towards you, the sound waves that it produces get compressed due to the motion. This results in an increase in frequency, which in turn leads to an increase in pitch or frequency of the sound. Therefore, the correct option is: The pitch gets higher because of an increase in frequency.
which combination of frequencies would produce the lowest beat frequency?
A. 10 hz and 20 hz
B 500 Hz and 600 Hz
C 500 Hz and 501 Hz
D 10 Hz and 15 Hz
The beat frequency is the difference between the two frequencies being played. The lowest beat frequency would be produced by the combination of frequencies that have the smallest difference between them.
Therefore, the correct option is: 10 Hz and 15 Hz, as the difference between these two frequencies is 5 Hz, which is the smallest among all the given choices.
which statement about the effect of temperature on the speed of sound is correct
As temperature increases, the speed of sound increases because he medium becomes denser
Changes in temperature have no effect on the speed of sound
As temperature increases, the speed of sound decreases because molecules in the medium collide less frequently
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
Temperature affects the speed of sound in a medium by changing the speed of sound waves. This is due to the change in the kinetic energy of the particles in the medium. When temperature increases, the average speed of the particles in the medium increases, which causes them to collide more frequently. As a result, the speed of the sound waves also increases.
Therefore, the correct option is: As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
which statement about the effect of temperature on the speed of sound is correct?
As temperature increase, the speed of sound increase because the medium become denser.
Changes in temperature have no effect on the speed o sound
As temperature increases, the speed of sound decreases because molecules in the medium collide less frequently.
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
which forms of electromagnetic radiation are arranged in orderof increasing energy?
infrared, gamma rays, microwaves, ultraviolet
microwaves, ultraviolet, infrared, gamma rays
gamma rays, ultraviolet, microwaves, infrared
microwaves, infrared, ultraviolet, gamma rays
The correct order of increasing energy for the given forms of electromagnetic radiation is:
infrared, microwaves, ultraviolet, gamma rays.
Therefore, the correct option is: infrared, microwaves, ultraviolet, gamma rays.
Is it :
A:infrared, gamma rays, microwaves, ultraviolet
B: gamma rays, ultraviolet, microwaves, infrared
C: microwaves, ultraviolet, infrared, gamma rays
D: microwaves, infrared, ultraviolet, gamma rays