Answer:
Doubled
Explanation:
F = (kq1q2) / r^2
F and q (Either q1 or q2) are directly proportional, so double the charge would also double the electruc force between the charges.
On a cold day, the speed of sound in air is 330 m/s. A note with a frequency of 1,320 Hz is played on an instrument. What is the wavelength of that sound wave? 0.25 m 4 m 1,650 m 435,600 m
Answer:
0.25 m
Explanation:
Given that,
The speed of sound, v = 330 m/s
The frequency of the note of the instrument, f = 1320 Hz
We need to find the wavelength of the sound wave.
We know that,
Wavelength, [tex]\lambda=\dfrac{v}{f}[/tex]
Put all the values,
[tex]\lambda=\dfrac{330}{1320}\\\\\lambda=0.25\ m[/tex]
So, the wavelength of the sound wave is equal to 0.25 m.
Answer: .25m edge 2020
Explanation:
Osteocytes are located in the lacuna, a small chamber in the calcified matrix of the bone.
A True
B False
Answer:
The answer is true I hope it helps you
How objects on Earth are affected by gravitational force.
Answer:
The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases. Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it
Select the correct answer.
Pedro took a timed vocabulary test multiple times over the course of a month. Each time, he got faster at completing the test. Which memory
Improvement technique did Pedro use to achieve this progress?
OA. priming
ОВ. self-referent encoding
Ос.
retrieval cues
OD
visual imagery
Help ASAP !!
Answer:
correct answer is priming
Explanation:
on plato took the test got 100%
Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the ending point. Which describes where Manny most likely walked?
Correct question:
Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the ending point. Which describes where Manny most likely walked?
a. from the bottom of a hill to the top
b. on a circular nature trail
c. on a sidewalk from his house to the mall
d. from the beginning of a straight track to the end
Answer:
b. on a circular nature trail
Explanation:
As it is mentioned that Manny that his reference point from where she started is same as ending point meaning that she moved in a circular path making point B correct answer.
Answer:
on a circular nature trail
Explanation:
Explain how seafloor spreading is like a conveyor belt
Answer:
In sea-floor spreading, the sea floor spreads apart along both sides of a mid-ocean ridge as new crst is added. As a result, the ocean floors move like conveyor belts, carrying the continents along with them.
Explanation:
Atruck with a mass of 5280 Kg has an acceleration of 45 m/s/s what is the force acting on the truck?
Please help me as soon as possible.
Answer:
true
Explanation:
A periodic wave with wavelength
- 2 m has frequency f = 4 Hz.
What is the wave's speed?
Answer:
-8m/s
Explanation:
v=wavelength*f=-2*4=-8m/s
Radio waves pass through us easily every day with no bad effects. Gamma Rays will kill you in large doses. What is the difference between these two forms of energy?
Answer:
gamma rays are super compact
Explanation:
as you move up the electromagnetic spectrum the wave lengths get shorter and shorter (higher and higher energy) gammas being the highest on the spectrum
Radio waves pass through us easily every day with no bad effects. Gamma Rays will kill you in large doses. the difference between these two forms of waves are in their energy.
What is wave ?Wave is is a disturbance in a medium that carries energy as well as momentum . wave is characterized by amplitude, wavelength and phase. Amplitude is the greatest distance that the particles are vibrating. especially a sound or radio wave, moves up and down. Amplitude is a measure of loudness of a sound wave. More amplitude means more loud is the sound wave.
Wavelength is the distance between two points on the wave which are in same phase. Phase is the position of a wave at a point at time t on a waveform.
There are two types of the wave longitudinal wave and transverse wave.
The energy of the electromagnetic photon is given by frequency times plank's constant. Hence energy is directly proportional to the requency. The frequency of the radio waves is far smaller than the gamma rays hence it has low energy. this is the difference, which leads gammas rays injurious to heath.
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what is the relationship between harmonics and resonance frequency in a piano
There is direct relationship between harmonics and resonance frequency.
A harmonic is a wave with a frequency that is a positive integer multiple of the frequency of the original wave whereas, resonance frequency is the frequency at which the oscillation reaches to its maximum point. The lowest resonant frequency is known as the fundamental, while on the other hand, the higher resonant frequencies are called overtones. All resonant frequencies are multiples of the fundamental, and are called harmonics. So we can conclude that there is a direct relationship between harmonics and resonance frequency.Learn more about harmonic here: https://brainly.com/question/17315536
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When heat moves from the ocean to the surrounding air, which is this an example of?
A the transfer of energy from the atmosphere to the hydrosphere
B the transfer of energy from the hydrosphere to the atmosphere
C the transfer of matter from the atmosphere to the hydrosphere
D the transfer of matter from the hydrosphere to the atmosphere
How much force required to prevent a book from falling if the mass of the book is 50 grams?
Answer:
The gravitational force on a mass is its weight. We can write this in vector form, where
→
w
is weight and m is mass, as
→
w
=
m
→
g
.
In scalar form, we can write
w
=
m
g
.
Since
g
=
9.80
m/s
2
on Earth, the weight of a 1.00-kg object on Earth is 9.80 N:
w
=
m
g
=
(
1.00
kg
)
(
9.80
m/s
2
)
=
9.80
N
Explanation:
the soft ballplayer does 9876 joules of work when hitting a ball into center field. Assuming the ball landed 100 meters away from home plate, how much force did the player use to hit the ball?
Answer:
F = 987600 N
Explanation:
Force Equation
F=ma
Newton's second law states that force is proportional to what is required for an object of constant mass to change its velocity. This is equal to that object's mass multiplied by its acceleration. We use Newtons, kilograms, and meters per second squared as our default units, although any appropriate units for mass (grams, ounces, etc.) or velocity (miles per hour per second, millimeters per second2, etc.) could certainly be used as well - the calculation is the same regardless.
Solve
F = m * a
F = 100 kg * 9876 m/s2
F = 987600 N
Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.
Green light (520 nm) enters glass with n = 1.52. What is the wavelength of light that enters the glass?
Answer:
answer=1.97×10^8
Explanation:
will u mark me brainliest?
Green light (520 nm) enters glass with n = 1.52, the wavelength of light that enters the glass is 520 nm.
To find the wavelength of light that enters the glass, we can use Snell's Law, which relates the angles and indices of refraction for light passing through a boundary between two mediums:
n₁ × sin(θ₁) = n₂ × sin(θ₂)
In this scenario, we can assume that the angle of incidence is zero degrees (the light is entering the glass perpendicular to the surface). Therefore, sin(θ₁) becomes sin(0) which is 0.
Using Snell's Law, we have:
n₁ × sin(θ₁) = n₂ × sin(θ₂)
1 × 0 = 1.52 × sin(θ₂)
The wavelength of light that enters the glass remains the same as the initial wavelength in air, which is 520 nm (nanometers).
Thus, the wavelength of light that enters the glass is 520 nm.
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formula for linear expansity
under which conditions do both convex and concave mirrors form virtual images state whether or not each can form a real image if the mirror can form a real image describe how this occurs
Answer:
Explanation:Concave mirrors can make a real image.when the object is away from the mirror it is called real image and when the object is closer to the mirror it is called virtual mirror.
Which statement explains how planets move in orbit as supported by Newton’s first law of motion?
Planets can change the direction of their own orbital path.
Planets can change orbits due to their inertia.
Planets in motion will have a constant speed unless acted on by an outside force.
Planets with a greater mass will orbit more quickly than smaller planets.
the answer is c i think
Answer:
C. Planets in motion will have a constant speed unless acted on by an outside force.
Explanation:
Took the test
Dawn is trying to find out how much weight she can push across the room. She is really trying to find her __________. A. flexibility B. muscular endurance C. cardiovascular fitness D. muscular strength Please select the best answer from the choices provided. A B C D
Answer:
D. muscular strength
Explanation:
Lifting any weight requires force to lift it. This force is the result of the muscular strength of the body. It is the muscular strength that determines the weight that a body can lift without any exhaustion. Muscular strength depends on the size of the muscular fibers and the nerves' ability. They help in activating the strength of the muscle. Lifting the objects and the ability to lift it are the outcome of the strength muscles have.
In the given situation, Dawn is trying to find her muscular strength.
Answer:
d
Explanation:
d
50 POINTS!!! PLEASE ANSWER CORRECTLY!
Who patented the first radio transmitter?
A.) Maxwell
B.) Hertz
C.) Tesla
D.) Watson-Watt
(This is so stu.pid because Marconi invented it but my science teacher doesn't uNdErStAnD that -.-)
Joni plays a scale on her clarinet. As she plays from low notes to high notes, what happens to the sound waves that the clarinet creates?
Answer:
The answer is "The frequency of the sound waves increases".
Explanation:
Its most oscillating their frequency waves, therefore higher the vibration we hear. However you see, sound frequency is determined through the oscillation of electrical signals while moving to our ears, which implies that perhaps the audio medium, which usually is air, makes a distinction between compression to spreading. It's the end of the communication as the frequency rises.
What is the galaxy that our solar system is located in?
Answer:
I think the answer is Milky Way
I hope this Will help you
What would happen if you went through a black hole. I will give brainliest for a correct answer.
Answer:
You would get spagettified. Streched into a very long noodle version of yourself.
HELP!!!
A(n) ________ effect reddens the sun at sunset and sunrise.
•Diffuse
•Reflection
•Scattering
•Opaque
If an object is sitting motionless on table, the normal force is...
A. Not present
B. the same forest as the force of the table pushing up on the object of interest
C. an extra force in addition to the force that the table applies to the object
Answer:
B. the same forest as the force of the table pushing up on the object of interest
Un móvil parte desde un punto ubicado a +10 Km del origen ,se mueve en línea recta llegando hasta el Km 60, donde cambia su sentido de movimiento, regresando al Km 32 .Entonces el desplazamiento o cambio de posición y la distancia recorrida son respectivamente: A) 22 km y 78 km B) -22 km y 78 km C) -18 km y 38 km D) -18 km y 18 km E) 10 km y 32 km
Answer:
La opción correcta es la A) 22 km y 78 km.
Explanation:
Dado que el desplazamiento (D) es un vector, su valor viene dado por la suma algebraica de los vectores del desplazamiento de ambos tramos.
Como en el primer tramo movil se mueve en la dirección de x-positiva y en el segundo tramo se mueve en el sentido de x-negativo, tenemos:
[tex] D = (60 km - 10 km) - (60 km - 32 km) = 22 km [/tex]
Ahora, la distancia (d) es una magnitud escalar, por lo que su valor viene dado por la suma del desplazamiento de ambos tramos:
[tex] d = (60 km - 10 km) + (60 km - 32 km) = 78 km [/tex]
Por lo tanto, la opción correcta es la opción A) 22 km y 78 km.
Espero que te sea de utilidad!
What is the main function (job) of the immune system?
A. to produce hormones for growth and development
B. to protect you from illness and disease
C. to get rid of waste in the body
Answer:
B. to protect you from illness and disease
Explanation:
The immune system protects your body from outside invaders, such as bacteria, viruses, fungi, and toxins . It is made up of different organs, cells, and proteins that work together.
Hope this helped!!
who needs more body building food, a father or a child? Why?
Answer:
A Child has a fast metabolism since it is growing fast it needs Food, Liquids, Sleep.
Explanation:
A father has already Grown and is only gaining age.
So we can Conclude that A child needs more body building food.
Which option is an example of a pure substance?
A. The compound strontium oxide
B. Carbon atoms spread evenly throughout iron atoms
C. A vinegar and oil salad dressing
D. A disc of silicon with stones of germanium in it
what happens to the mechanical energy of an apple as it falls from a tree?
Answer:
When the apple falls from the tree, it has some gravitational potential energy due to its height. Now, When it starts falling, the Gravitation Potential energy will starts converting into the Kinetic Energy. When the apple is about to strikes the ground, the Gravitational Potential energy have been converted into the Kinetic Energy.
Explanation:
The potential energy will be low when its kinetic energy is high and vice versa. But the mechanical energy remains conserved.
What is mechanical energy?Mechanical energy can be explained as the sum of kinetic energy and potential energy that can be used to do work. Mechanical energy can be described as the energy of a body due to its motion or position.
The total mechanical energy of a physical system is conserved as the energy can not be created or destroyed. The mechanical energy of a physical system can only be transformed from one form to another when the forces acting work are conservative in nature.
Each force is related to potential energy form and the energy changes between different kinds of potential energy and kinetic energy but the total energy remains constant.
The mechanical energy of the apple remains conserved. As the apple falls its potential energy is converted into kinetic energy.
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