Answer:
C (1.07 metres)
Explanation:
wavespeed = frequency x wavelength
rearrange for wavelength
wavelength = wavespeed ÷ frequency
so 320 ÷ 300 = 1.07m (rounded)
There are 2 ways of collecting the sun’s energy. What are they? Give an example of each.
im assuming its D. do to the sound waves having to go through more material...right?
Answer:
Answer: B- it decreases, hope this helped!! :)
Explanation:
Answer:
D
Explanation:
this answer is correct you know because we all have different problems and it will only increase if you have a different problem
A What quantity is equal to
Answer:
Option B is correct
Explanation:
acceleration is equal to rate of change of velocity.
Indicar objetosque puedan ser observados a simple vista, con microscopio, con microscopio electrico y con miscroscopio de transmicion. Indicar cuel es orden de magnitud de cada uno
Answer:
En esta respuesta voy a usar la unidad μm, tal que:
1 μm = 1*10^(-9) m
Objetos que pueden ser observados a simple vista:
Son todos aquellos objetos que podemos observar simplemente con nuestros ojos, con ellos podemos observar desde un edificio (con tamaños de decenas de metros) hasta algunos cabellos, que pueden tener un diámetro de 0.1 mm
Cosas más pequeñas que estás muy difícilmente se pueden ver a simple vista.
Con un microscopio podremos ver cosas del tamaño de una célula, como glóbulos blancos, rojos, algunos microorganismos, etc, los cuales rondan un tamaño de unos 10 μm. Naturalmente, distintos microscopios tendrán distintas amplificaciones (por lo que con algunos podremos ver objetos muy pequeños que con otros no).
Microscopio eléctrico:
Este microscopio usa electrones en lugar de luz para formar imágenes.
Con él podremos observar cosas como las componentes de una célula (membranas, orgánulos grandes, etc), los cuales pueden medir unos pocos nanómetros (por ejemplo, una membrana celular tendrá un tamaño de entre 5 μm y 10 μm)
Microscopio de transmisión.
Tener en cuenta que el microscopio de transmisión es un microscopio eléctrico, el cual lanza un haz de electrones al objeto que se desea observar, de tal forma que algunos de estos electrones rebotan formando así la imagen virtual amplificada que podemos observar.
Con estos aparatos podemos ver orgánulos pequeños (0.5 μm), y lo más pequeño que podemos ver (con los microscopios más potentes) son columnas de átomos (0.1 μm)
help please physics !!
Answer:
Option A. 1 bar = 1 atm
Explanation:
Pressure has various units of measurement. Each unit of measurement can be converted to other units of measurement. For example:
1 atm = 1 bar
1 atm = 760 mmHg
1 atm = 760 torr
1 atm = 1×10⁵ N/m²
1 atm = 1×10⁵ Pa
With the above conversion scale we can convert from one unit to the other.
Considering the question given above, it is evident from the coversion scale illustrated above that only option A is correct.
Thus,
1 bar = 1 atm
state two environmental problems caused by coal fired power stations
Answer:
Air pollution and water pollution.
Explanation:
The burning of coal causes air pollution, and coal fired power stations dump waste in large bodies of water.
The Playground
A and G are at same height and where
skateboarder starts
E
A
G
ao oon
E
С
vai
OOHO
F
D
O meters
List in order from greatest to least the Kinetic energy from greatest to least.
Drag the boxes in the correct order
1
1
DDDDDD
what is formula of perimeter of half circle
1/2 × 2 × pie × radius
= pie × radius
A seesaw is 4.0m long with a pivot at its midpoint. A boy who weighs 400N sits at a distance of 1.5m from the pivot. His sister weighs 300N. Calculate the distance at which the girl must sit if the beam is ti be balanced
Answer:
the girl must sit 2 cm from the pivot at the opposite end of the seesaw.
Explanation:
Given;
length of the seesaw, L = 4.0 m
weight of the boy, W₁ = 400 N
position of the boy from the pivot, d₁ = 1.5 m
weight of her sister, W₂ = 300 N
First, make a sketch of this information given;
0---0.5m---------------------Δ--------------------------4m
↓<--------1.5m-------> <---------x--------->↓
400 N 300N
Apply the principle of moment about the pivot, to determine the value of x;
Sum of anticlockwise moment = sum of clockwise moment
400(1.5) = 300(x)
600 = 300x
x = 600/300
x = 2 cm
Thus, the girl must sit 2 cm from the pivot at the opposite end of the seesaw.
Someone help me with this
Answer:
All reactions listed are of synthesis type.
resistors with value of 4 and 6 are connected in parallel to one another and the combination is connected in series to a 36 V battery. Find the current through each resistor and the power dissipated by each resistor
1. Astronomical observatories have been available since ancient times, and many cultures set aside special sites for astronomical observations. The thing modern observatories have that was missing from these older observatories until about 1610 was: a. a dark site, where lights did not get in the way b. graduate students or other assistants for sharing the astronomer’s work c. a method of keeping good records d. a way of measuring from what general direction in the sky a beam of light was coming e. telescopes
Answer:
e telescopes
Explanation:
may i be marked brainliest?
una llamada telefonica a brasil de 4 minutos costo el mes pasado 2430 si el valor por minuto se mantiene cualto debo pagar por una llamada de 6 minutos a ese pais
Answer:
Costo = 3645
Explanation:
Dados los siguientes datos;
Costo de la llamada = 2430
Duración = 4 minutos
En primer lugar, encontraríamos el costo por minuto;
Costo por minuto, Cpm = 2430/4
Cpm = 607.5
A continuación, para encontrar el costo de 6 minutos;
Costo = 607,5 * 6
Costo = 3645
4-year-old becomes frightened of the dark and refuses to go to sleep at night. How would a psychoanalyst and a behaviorist differ in their views of how this problem developed?
Answer:
A psychoanalyst would see the 4-year-old as having an unresolved conflict where the brain judges or evaluates how good or bad the darkness is, or the usefulness of sleeping in the dark at night based on a comparison, due to the child's exploration of the world around him. A psychoanalyst might see the child's refusal to sleep at night due to the dark as a fear created for instance when the child sleeps alone without the parent. This might change if the child sleeps at night beside the parent in the dark.
While behaviorists would look at how having previous negative experiences in the dark influences a child's behavior towards staying in the dark. This fear would be reinforced with more negative experiences in the dark such as having a bad nightmare whenever the child sleeps in the dark, a feeling of hearing, or seeing strange things while in the dark. These examples would have built a behavioral pattern where the child would be conditioned to respond fearfully to being in the dark.
I need help with this assignment please
Answer:
ill try
Explanation:
let me find this answer for you
Explain how interactions can both benefical and harmful to the organisms in an community
Compare and contrast the health benefits and the amount of physical or mental energy needed between active leisure activities and passive leisure activities
Answer:
Q...Compare and contrast the health benefits and the amount of physical or mental energy needed between active leisure activities and passive leisure activities.
A..Some active leisure activities, such as yoga and running, require a great deal of physical energy, while other activities, like playing chess, require a substantial amount of mental energy. Passive leisure activities, such as watching TV or going to the movies, require little to no physical or mental energy. Because of the exertion of physical or mental energy, active leisure activities have more health benefits than passive leisure activities.xplanation:
afootball of mass 550g is at rest on the ground the football is kicked with a force of 108 newton the footballers boot is in contact with the ball for 0.3 minute what is the kenitic
energy of the ball
If "0.3 minute" is correct, then it's 9,543,272 Joules.
If it's supposed to say "0.3 SECOND", then the KE is 2,651 Joules.
Un tren sale de una estación a una velocidad media de 25km/h durante 2 min. Después, avanza a una velocidad media de 90km/h durante 10 min, y baja su velocidad media a 25km/ h durante medio minuto para entrar en la siguiente estación. ¿Que distancia hay entre las dos estaciones?
Answer:
La respuesta es 16,041.66 M en términos de segundos.
Explanation:
Electromagnets are used in to produce a rotating magnetic field that turns a rotor.
A) TVs
B) computers
C) generators
D) motors
Answer:
A motor
Explanation:
(I'm not that good in physics but from what I know it might be motor or generator, I'm not 100% sure on this answer)
HELP ME PLEASE WITH MY HOMEWORK ILL GIVE BRAINLIEST
Answer: Mass
Explanation:
2.List two changes an unbalanced force can cause.
Answer:
By applying an unbalanced force, you can change the motion of an object. Unbalanced forces can make an object at rest start moving, make a moving object stop, or change the direction and speed of the object.
Explanation:
Unpolarized light can undergo polarization by this means off a nonmetallic surfaces.
Answer:
तिकडी एकच
Explanation:
आप सल क्ल वल दन रव दंचंबी एक गम ok plz
Which factor(s) affect(s) the brightness of a star as seen from earth?
A) the stars distance from earth
B) the stars temperature
C) the stars mass
D) the earths atmospheric conditions
E) all of the above
Answer:
mehoy noy
Explanation:
HELP ME ASAP ITS PHYSICS AND it’s finding the kinetic energy SHOW WORKKK
k = 1/2 × m × v^2
_____________________________
1. k = 1/2 × 60 × ( 10 )^2
k = 30 × 100
k = 3000 j
_____________________________
2. k = 1/2 × 60 × ( 9 )^2
k = 30 × 81
k = 2430 j
_____________________________
3. k = 1/2 × 60 × ( 4 )^2
k = 30 × 16
k = 480 j
_____________________________
4. k = 1/2 × 60 × ( 6 )^2
k = 30 × 36
k = 1080 j
______________________________
5. k = 1/2 × 60 × ( 0 ) ^2
k = 30 × 0
k = 0 j
the ans is like this
1 4
2 5
3
[tex]\huge\mathfrak\purple{hello...} \\ \\ \huge\mathfrak\green{what \: is \: energy} \\ \\ \huge\mathfrak\pink{asap \: please \: }[/tex]
Energy is "the ability to do work". Energy is how things change and move. It takes energy to cook food, to drive to school, and to jump in the air. Different forms of Energy. Energy can take a number of different forms.
Two positive charges are placed near each other what happens between the charges
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
Answer: coll
Explanation:
If a car is traveling 60 miles per hour, how far will it travel in one hour?
Answer:
60 miles
I hope it's helps you
Answer:
316800 feet or 60 miles per hour
Explanation:
it is already said in the problem 60 miles per hour
why did the united states and the soviet union begin experimenting with and trying to improve the v-2 rocket ?
Answer:
To Increase National Security
Explanation:
Stored energy and the energy of position is the definition?
Answer:
Potential energy is energy that is stored-or conserved-in an object or substance. This stored energy is based on the position, arrangement or state of the object or substance