Answer:
Simple harmonic motion is difficult to generate since real processes have irreversibilities, which are omitted in the physical model and represented by physical concept of damping.
Explanation:
It is very difficult to generate simple harmonic motion since real processes have irreversibilities that dissipy the mechanical energy within the system (e.g. air viscosity, friction), meaning that a permanent presence of an external load is needed to counteract such damping effects, in contrast with simple harmonic motion, where motion is self-sustained.
There is a bell at the top of a tower that is 95 m high. The mass of the bell is 21 kg. What is the potential energy of the bell?
Answer:
19,551 J!
Explanation:
The formula is PE = ham (h=height, a= acceleration or 9.8, m= mass)
PE = (95)(9.8)(21)
PE = 19,551 Joules
An electron acquires 7.45 x 10 ^-16 J of kinetic energy when it is accelerated by an electric field from plate A to plate B. What is the potential difference between the plates, and which plate is at the higher potential?
Answer: Kinetic energy of electron = 7.45 x 10^-16 J We know that Potential difference = Work done per unit charge = Kinetic energy of electron / ( 1.6 x 10^-19 ) = (7.45 x 10^-16) / ( 1.6 x 10^-19) = 4656.25 V
Explanation:
The potential difference between the plates is [tex]4650.43V[/tex]
The Potential difference is also defined as the work done per unit charge.
Work done = kinetic energy = [tex]7.45*10^{-16}J[/tex]
Charge on one electron = [tex]1.602*10^{-19}C[/tex]
Potential difference,
[tex]V=\frac{7.45*10^{-16}}{1.602*10^{-19} }=4650.43Volt[/tex]
Hence, the potential difference between the plates is [tex]4650.43V[/tex]
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Label the lettered parts of the wave
Answer:
A: Wavelength
B: Crest
C: Trough
D: Amplitude
Please help with this
Answer:
D
Explanation:
How do the phases change when our perspective changes from the Earth to the Moon?
Help me please please
answer a makes the most sense.
hope this helps
What would a series circuit be used for?
A. to power a battery
B. to light a lamp
C. as a voltage divider
D. convert chemical energy to thermal energy
Answer:
C
Explanation:
a series circuit would be an odd choice to power a battery or light a lamp when a direct would be much more efficient, and it's not converting types of energy, so C is the best possible answer
A moving car of mass 1500 kg travels at a constant speed of 4.6 m/s. What is the car's average momentum?
A
6900 kgm/s
B.
1500 kgm/s
C.
2500 kgm/s
D.
3600 kgm/s
Answer:
c
Explanation:
c I think this is the answer
When an object slides,there is less friction than when it rolls
Answer:
False
Explanation:
Rolling friction takes place when an object rolls on the surface. Sliding friction takes place when two surfaces are rubbed against each other. Rolling friction is much less than sliding friction for same pair of bodies. When one body rolls upon another, there is theoretically no sliding or slip between them.
what is a variable that gives location relative to an origin?
Answer:
The position variable gives location relative to an origin.
Explanation:
Position (displacement) gives location relative to an origin, but distance does not.
is there any way u can help me
Answer:
get help with your work
try understand your work
ask your teacher for assistance or class
or maybe cheat but understand the work first if you wanna
Radio waves are the ___ waves and have the ___ amount of energy.
The answer would radio waves have the longest waves and have the least amount of energy.
Hope that helps!
PLEASE HELP ME I AM TIMED!
HELP IM TIMED. ILL MARK BRAINLIEST PLSSSSSS.
A model rocket accelerates at 15.3 m/s2 with a force of 44 N.
Calculate the mass of the rocket. Round your answer to the nearest tenth of a kg.
The mass of the rocket is kg.
Fill in the blank above. Also what is the formula to find the mass. Include that in the answer pls.
Answer:
According to Newton's Second Law of Motion :
Where,
F = Force Applied
m = Mass of the object
a = Acceleration
Now, we will use this law to solve this question.
Given :
Acceleration or a = 15.3 m/s²
Force = 44 N
Mass = ?
Substitute, the given values in the formula.
F = ma
⇒ m = F/a
m = 44/15.3
m = 2.9 kg
Answer:
7.0 n
Explanation:
HELP MEEE
Resonance occurs in the middle ear.
Please select the best answer from the choices provided
T
F
Answer:
The answer should be True, but it's False on Edge 2021
Explanation:
이것이 도움이 되었기를 바랍니다.
(✿◡‿◡)
#LearnWithBrainly
-Jiyen~
Question 5
1 pts
A 1.50 cm tall object is placed 20.0 cm from a concave mirror whose radius
of curvature is 30.0 cm. What is the image height?
Answer:
b
Explanation:
In a race, a car travels 60 times around a 3.6km track. This takes 2.4 hours. What is the average speed of the car?
Answer:
multiply
Explanation:
multiply
Answer:
90km/h
Explanation:
Plz don’t send me link over what the answer is just tell me. What force is represented by the vector?
A. friction
B. gravity
C. normal force
D. push
Answer:
B. gravity
Explanation:
The ball if moving down so gravity is acting on it because it is pulling it down to earths toward the center of earth aka the ground.
Write 3 major differences between a shadow and a image?
Explanation:
Image Shadow
2. We are able to see images when light refraction enters our eyes.
In the case of shadow no light enters our eyes.
3. Image contains colour, structure etc. of the object.
Shadow does not give any information about the object as it is colourless
Answer:
We know that an image is a picture of an object while shadow is formed an object comes in between the surface and light. ... The formation of image takes place when the light rays are reflected by an object. The formation of shadow takes place when the light falls on an opaque object.
Un texto de opinión sobre la situación actual del rol de la mujer, el trabajo y las situaciones de violencia en el contexto de Pandemia. Cambió la situación de las mujeres?
Explanation:
Los derechos de las mujeres fueron conquistados a través de importantes luchas llevadas a cabo por mujeres, como el movimiento feminista que tuvo lugar a fines del siglo XIX, cuyo principal reclamo fue el derecho al voto de las mujeres.
Con el tiempo, las mujeres ganaron más derechos y una mayor participación en el mercado laboral y en puestos importantes de la sociedad. Pero aún queda mucho por cambiar, ya que las estadísticas aún muestran que hay pocas mujeres en posiciones de poder en relación a los hombres, y el salario de una mujer que ocupa el mismo puesto que un hombre es siempre menor.
Dado que la sociedad se concibió a través de parámetros sexistas, lo que continúa en la actualidad, es claro que en la pandemia específicamente que generó crisis económicas en todo el mundo, se vio a una gran cantidad de mujeres perder sus empleos, además del expresivo número de casos de violencia doméstica que se agravaron en el período de aislamiento social.
Así que estos hechos solo demuestran que la lucha por la igualdad de género y los derechos de las mujeres aún están en sus inicios, a pesar de muchos logros que las mujeres aún deben luchar por lo básico, que es el apoyo social y político además de una legislación más estricta que castiga con más rigor a las agresoras. Las mujeres deben estar protegidas por la ley y las instituciones y los medios de comunicación deben abordar más el tema y promover el feminismo como una lucha por la igualdad.
Name one metal and one non-metal from the periodic table?
Y’all I need help
Thank you!
Answer:
Zinc and Neon!
Explanation:
zinc is an element that is a transition metal and neon is a noble gas
In the nuclear equation:
222 86 Radon becomes 4 2 Helium plus blank.
The characteristics of the missing particle are ________________.
Z = 84, A = 220
Z = 88, A = 218
Z = 84, A = 218
Z = 85, A = 220
Answer:
C
Explanation:
Z = 84, A = 218
trust, got a 100 :)
2. A hit used on a ball below the shoulders
1. Bump
2. Set
3. Serve
4. Spike
Answer:
Bump
Explanation:
Also called the forearm pass; An underhand pass hit with your forearms when the ball is below your shoulders; used to receive the serve.
A book weighing 18.0 N is lifted from the floor and placed on a shelf 1.5 m high. What is the minimum amount of work required to accomplish this
task?
a. 120J
B. 12 J
c.270J
D. 27 J
A book weighing 18.0 N is lifted from the floor and placed on a shelf 1.5 m high. The minimum amount of work required to accomplish this task is
What is Work ?Work done is the amount energy gained (loosed) in bringing the body from initial position to final position. It is denoted by W and its SI unit is joule(J). i.e. Work(W) is force(F) times displacement(s). W=F× s When a body is displaced with 1 newton of force by 1 m, then we can say that work has been done on the body by 1 joule. Writing for it's dimension, W=F× s Force has dimension [L¹ M¹ T²] Displacement has dimension [L¹] multiplying both the dimensions Force and Displacement we get, dimension of Work [L² M¹ T²].
Given,
Weight F = 18 N
Height h = 1.5 m
Work W = F × h = 18 × 1.5 = 27 J
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what is power, and what is its relationship to voltage and amperage?
How far can you get away from your little brother with the squirt gun filled with paint if you can travel at 3 m/s and you have 0.25 min before he sees you?
Answer:
s = 45 m
Explanation:
The velocity given in the question is uniform. Hence, the formula for the uniform velocity shall be used here. The formula is given as follows:
[tex]s = vt[/tex]
where,
s = distance traveled away from the brother = ?
v = constant speed = 3 m/s
t = time taken = (0.25 min)(60 s/1 min) = 15 s
Therefore, using these values in the formula we get:
[tex]s = (3\ m/s)(15\ s)\\[/tex]
s = 45 m
Radio telescopes beam radio waves into space. To calculate the speed of the radio waves in space, which information, if any, is necessary?
Answer:
No more information is needed
Explanation:
Radio waves are electromagnetic energy, lower frequency forms of this type of energy that includes light and cosmic rays on the high frequency end that we are able to detect. So in free space (vacuum), radio waves travel at their fastest velocity, the “speed of light”. The reason for the quotation marks is because when light or radio waves are propagating through matter, we observe them traveling more slowly.
can someone give me 3 examples of newtons first law of motion
Answer:
1. A biker running into a stop sign.
2. A ball rolling down a hill, being stopped by a car running over it and deflating the ball.
3. A boy kicking a soccer ball on a soccer field.
Explanation:
GIZMO
A. Does the car's mass alone determine whether the egg breaks?
B. Does the car's speed alone determine whether the egg breaks?
C. Does the car's momentum determine whether the egg breaks?
D. Does the car's kinetic energy determine whether the egg breaks?
A stationary, 32 kilogram ice skater catches a 0.5 kilogram snowball thrown at a speed of 45 meters per second. The collision is totally inelastic. How fast, in meters per second, does the skater (and snowball) move afterward? Friction of the skater on the ice is negligible.
Answer:
V = 0.69 m/s
Explanation:
Given that,
The mass of a ice skater, m₁ = 32 kg
The initial speed of the ice skater, u₁ = 0
Mass of a snowball, m₂ = 0.5 kg
The initial speed of a snowball, u₂ = 45 m/s
eIt is mentioned that the collision is totally inelastic. Let V be the common speed of skater and the ball. So, using the law of conservation of momentum.
[tex]m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{m_1+m_2}\\\\V=\dfrac{32\times 0+0.5\times 45}{32+0.5}\\\\V=0.69\ m/s[/tex]
So, the common speed is equal to 0.69 m/s.