Answer:
spoon and scissors belong to first class lever.
hope it is helpful to you
Wo do u think the best male tennis player currently still playing?
1. Rafael nadal
2.Roger federer
3.Novak Djokovic
Answer:
--..-...-...-.---..-...-...
Answer: right now its djokovic
Explanation:
I am a federer and nadal fan but djokovic is dominating. federer has retired and nadal isnt at his best due to injuries and his age.
Why is the global temperature increasing? Explain the science behind it.
How much power is needed to lift a 20-kg object to a height of 4.0 m in 2.5 seconds?
Answer:
313.92w
Explanation:
Formula for power:
P=W/∆t = Fv
Givens:
m=20kg
∆y=4.0m
∆t=2.5s
a=9.81m/s²
In order to find power, we first need to solve for work.
W=Fd (force*displacement), f=mg
W=mg∆y
W=(20kg)(9.81m/s²)(4.0m)
W=784.8J
P=W/∆t
P=784.8J/2.5s
P=313.92 watts
If the velocity of a car is 45km/h west, how far can it travel in 0.5 hours
Answer:
22.5km
Explanation:
Since 0.5 of an hour is half of an hour, you have to divide 45 by half, and you would get 22.5 km
who invented Pascal??
Define 1 pascal pressure
Answer:
Hey mate....
Explanation:
This is ur answer.....
A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa.
Hope it helps you,
mark me brainliest plz.....
Follow me! :)
pascal is the SI unit of pressure symbolized by Pa
1 Pa=1N/m^2
1Pa=1kg/ms^2
In a series circuit, there is a 2-ohm resistor with a current of 5A. If there is another resistor with a resistance of 5 ohms, what is the current inside that resistor?
Answer:
if 2ohms gives 5A
then 5ohms will give 12.5A
since its directly proportional
V=IR
what is the mass of modelling clay?
the mass of modelling clay is 500g
Define atmospheric pressure
Answer:
tmospheric pressure, force per unit area exerted by an atmospheric column (the entire body of air above the specified area)
Define heat according to molecular theory .
I think ....... the answer will be ......
like a theory
An organism with the alleles Aa is called __________, while one with AA or aa is called __________.
A. heterozygous, hom/ zygous
B. heterozygous, homo/zygous
Answer:
Hetefrozygous, homofzygous
Could someone please help me..?
The effect an electric charge has on other charges in the space around it is the charge's:
friction
electric current
electric field
induction
¿Qué función trigonométrica describe la manera como el voltaje y la corriente varían con el tiempo en un circuito CA?
Answer:
función sinusoidal
Explanation:
En un circuito de CA, la corriente y el voltaje tienen un voltaje máximo y mínimo. A intervalos regulares, la corriente y el voltaje invierten la dirección y cambian su magnitud continuamente con el tiempo.
Por lo tanto, para representar la corriente y el voltaje en un circuito de CA, se utiliza una función sinusoidal. Una función seno es una función continua con oscilaciones periódicas.
What is the atomic number the atom shown?
A. 3
B. 13
C. 14
D. 27
Answer:
13
Explanation:
Brainlest pls
Answer:
B-13
Explanation:
The protons listed in the atom are 13, and the protons are the same number as the atomic number.
Where is the most and the least KENETIC ENERGY
Answer:
Where is kinetic energy the least?, and most?
Explanation:
Least : When the Moon is farthest from Earth in its nearly elliptical orbit, its speed is least. Its kinetic energy has become least, and its potential energy is greatest.
Further : Kinetic energy, form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy.
May be different for you, but i really hope I helped out.
Use the term chemical bond in a complete sentence
will mark as brainliest . pls help
Answer:
answer D
Explanation:
circuit breaker is useful when you do something with your domestic electric circuit..
Una bola se lanza verticlamente de la parte superior de un edificio con una velocidad inicial 25 m/s la bola impacta al suelo en la base del edificio 7 segundos despues de ser lanzada ¿que altura subio la bola
Answer:
S = 415.1 meters
Explanation:
Dados los siguientes datos;
Velocidad inicial = 25 m/s
Tiempo, t = 7 segundos
Para encontrar la altura (desplazamiento) de la pelota, usaríamos la segunda ecuación de movimiento;
[tex] S = ut + \frac {1}{2}at^{2}[/tex]
Dónde;
S representa el desplazamiento o altura medida en metros.
u representa la velocidad inicial medida en metros por segundo.
t representa el tiempo medido en segundos.
a representa la aceleración medida en metros por segundo cuadrado.
Sustituyendo en la ecuación, tenemos;
[tex] S = 25*7 + \frac {1}{2}*(9.8)*7^{2}[/tex]
[tex] S = 175 + 4.9*49 [/tex]
[tex] S = 175 + 240.1 [/tex]
S = 415.1 meters
13.If a jet plane with a velocity of 20 m/s at t = 0 accelerates at a rate of 40 m/s²
for 3 seconds, what is its veloaty at time = 3 seconds?
Answer:
140m/s
Explanation:
V=V0+at. V=20+40*3=140m/s
does a wall or door have more inertia?
Answer:
door
Explanation:
What is a key difference between transverse and longitudinal waves?
A.) Transverse move up and down while longitudinal can do in any direction.
B.) Transverse can e described as troughs and crest while, longitudinal waves can be described as compression and rarefactions.
C.) There is no difference, it depends on the scientific uses and calculations involved.
D.) Transverse waves can only represent sound while longitudinal are represented by ocean waves, light and other waves
Answer:
B.) Transverse can e described as troughs and crest while, longitudinal waves can be described as compression and rarefactions.
I need help plssss!!!!
Answer:
C
Explanation:
The other answers don’t make sense
10 Points
The low density gas layer surrounding a star is known as the
O A. Corona
B. Core
C. Convective zone
o
D. Radiative zone
Reset Selection
As the ball moves from point A to point B, kinetic energy...
Answer:
KE=1/2mv*
Explanation:
write the numbers inorder to the symbols
Ans use this formula to solve the problem
Un tren de alta velocidad (TAV) o tren bala es aquel que alcanza velocidades iguales o superiores a 200 km/h. La energía que tiene el tren en su recorrido habitual es: *
Answer:
B. Cinética, debido a que esta energía está asociada con la velocidad que posee el tren.
Explanation:
Un tren de alta velocidad (TAV) o tren bala es aquel que alcanza velocidades iguales o superiores a 200 km/h. La energía que tiene el tren en su recorrido habitual es
A. Cinética, debido a que existen trenes elevados los cuales poseen altura y la altura está asociada con la energía cinética.
B. Cinética, debido a que esta energía está asociada con la velocidad que posee el tren.
C. Rápida, porque la energía cinética es sinónimo de rápido.
D. Potencial, debido a la potencia que tiene el tren para moverse.
Solution:
La energía cinética es la energía contenida en un objeto en movimiento. La energía cinética se puede definir como la cantidad de energía necesaria para que un objeto se acelere desde el reposo hasta su velocidad final.
La energía cinética (KE) viene dada por:
KE = (1/2) * masa * velocidad²
Podemos ver que la energía cinética depende de la masa del objeto y la velocidad del objeto.
El tren de alta velocidad posee energía cinética debido a la velocidad del tren.
Sunlight is a form of electromagnetic energy.
Please select the best answer from the choices provided
T
F
Answer: True
Explanation: Hope this helps :)
A force of 120 N is acting on a surface of area 100 cm 2 . Calculate the pressure acting on the surface.
Answer:
Thrust is the force acting normally to a surface. So, Thrust = 1200 N. And , Pressure = Thrust / Area. = 1200 / 0.001. = ...
Explanation:
this right like me
A disturbance that generates a wave may be a simple pulse or shock
True or false
Answer:
That would be true.
-- a bell starts ringing (wave) when you tap it (simple pulse)
-- a pond starts rippling (wave) when a stone drops in (simple shock)
-- a guitar strings starts waving when you pluck it
Putting the moon back to its original size, if it were suddenly to move to twice the
distance from the earth, how would that effect the force of gravitation with the
earth?
A magnet can move in a coil of wire to produce electricity in which system?
A. Generator
B. Motor
C. Magnet
D. Transformer
Answer:
A. Generator
Explanation:
Hope this will help
Answer:
A. Generator
Explanation:
That is the correct answer