Lets find
[tex]\\ \sf\longmapsto Modulus\:of\:elasticity=\dfrac{Stress}{Strain}[/tex]
[tex]\\ \sf\longmapsto \dfrac{\left[ML^{-1}T^{-2}\right]}{\left[M^0L^0T^0\right]}[/tex]
[tex]\\ \sf\longmapsto \left[ML^{-1}T^{-2}\right][/tex]
please answer
during a journey, a car travels at 40 km in 2.5 hours, next 62 km in 3 hours, then took a break for 30 minutes, again travelled the last 120 km in 3.2 hours. calculate the average speed of the car during the journey.
average speed of the car is 23.9 km/h
What mechanism of energy is transferred by mass motion of fluid from one region of space to another?
An imaginary star is four light years from earth. The star has a planet, upon which a large mirror has been installed. The mirror faces earth. A ten year old boy aims his telescope at the mirror. How old will the boy be when he sees his own reflection?
Answer:
14 years
Explanation:
because the light will take four years to reach the earth. And the star is four light years away from the earth.
Hope that helps you please followAn imaginary star is four light years from earth. The star has a planet, upon which a large mirror has been installed. The mirror faces earth. A ten year old boy aims his telescope at the mirror,then the boy would be 14 years old when he will see his own reflection.
What is a light year?
It can be defined as the distance travelled by the light in one year .it is represented in units of distance such as miles or km.
1 light year is calculated by multiplying the speed of light with the time of one year
1 light year = speed of light × one year time period
1 light year = 3×10⁸ ×(365×24×60×60)
=9.461× 10¹⁵ meter
As given in the problem 10 year old boy aims his telescope at the mirror which is 4 light years away then the light has to travel four years to reach the boy ,then the boy would be 14 year old when he would see his own reflection.
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what is linear expansivity
Name of compounds
a. H2Co3
b. NH4OH
c.AlPO4
d.NaOH
e.AuCI3
Answer:
a) Carbonic acid
b) ammonium hydroxide
c) Aluminum phosphate
d) Sodium hydroxide
e) Gold trichloride
Explanation:
I hope this will help you buddy
What is common between the quantities of area, density and speed?
Answer:
They are all s
calar quantities
Why does the weight of a body differ on different celestial bodies of the universe?
the splitting of white light into its constituent colours is called
what do you mean by scattering of light
Answer:
Scattering of light is the phenomenon in which light rays get deviated from its straight path on striking an obstacle like dust or gas molecules, water vapours etc. Scattering of light gives rise to many spectacular phenomena such as Tyndall effect and the “red hues of sunrise and sunset”.
can anyone help me to explain theory of relativity???
Answer:
The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its relation to other forces of nature.It applies to the cosmological and astrophysical realm, including astronomy.
The theory transformed theoretical physics and astronomy during the 20th century, superseding a 200-year-old theory of mechanics created primarily by Isaac Newton. It introduced concepts including spacetime as a unified entity of space and time, relativity of simultaneity, kinematic and gravitational time dilation, and length contraction. In the field of physics, relativity improved the science of elementary particles and their fundamental interactions, along with ushering in the nuclear age. With relativity, cosmology and astrophysics predicted extraordinary astronomical phenomena such as neutron stars, black holes, and gravitational waves
The Doppler effect a. can be applied only to sound waves. b. is the basic explanation for the blue shift of light in our Universe. c. occurs when the frequency of sound waves received is lower if the wave source is moving toward you than if it's moving away. d. occurs when the pitch of a sound gets lower if the source is receding.
Answer:
a. can be applied only to sound waves.
c. occurs when the frequency of sound waves received is lower if the wave source is moving toward you than if it's moving away
d. occurs when the pitch of a sound gets lower if the source is receding.
Explanation:
[tex].[/tex]
7.
What is TRUE about NIBIN?
ОА. .
It inspired the creation IBIS.
ОВ.
It inspired the creation of IBIS.
O C.
It was created by the FBI and the ATF.
OD.
It was used in the early 1900s.
Reset
Answer:
the true about n i b i n is they are Commissioner
Answer:
it was created by FBI and ATF
Explanation:
the closes thing I gound to an answer is:
NIBIN is a nationally networked system administered by ATF to assist law enforcement in solving firearms related violent crimes. IBIS is a collection of electronic images ofballistic evidence recovered from crime scenes and test-fired firearms that have been taken into law enforcement custody in the United States.
define simple machine
Answer:
simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. ... The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw.
Ans it fastly
i need the ans fastly
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12. C
13. A
14. B
15. D
16. D
17. B
3. A microwave oven draws 12 A of current on a 110 V household circuit. What is its power
rating?
Answer:
W = 1320Watts
Explanation:
W = I*V
W = 12A*110V
W = 1320Watts
explain radiation and which is the hotest source in the world
Ramsar has the highest level of natural radiation in the world.
Hot springs located in the Arkaroola Wilderness Sanctuary in Southern Australia are also credited with higher than normal radiation levels, due to spring water coming in contact with rocks rich in uranium and radon.
A ball is dropped from a height of 180m- Calculate the velocity of the ball when it strikes the ground
Answer:
6s , 60mls
Explanation:
hope this helps love
Answer:
0m/s
Explanation:
When the object strikes the ground, it then becomes in uniform motion and when an object is in uniform motion, the velocity is 0
Dos ciclistas se encuentran compitiendo en un velódromo. Considere que el peso de cada ciclista es W1 y el peso de cada bicicleta es W2. En el instante en el que los dos ciclistas se encuentran uno al lado del otro, es correcto afirmar que:A. Las velocidades de ambos ciclistas son iguales B. Las posiciones y las velocidades son iguales C. Las posiciones son las mismas D. Las posiciones como las aceleraciones son iguales
Comenzemos con unas definiciones.
La posición nos dice la ubicación espacial de un dado objeto.
La velocidad nos dice como cambia la posición a medida que pasa el tiempo.
La aceleración nos dice como cambia la velocidad a medida que pasa el tiempo.
Teniendo esto en cuenta, la respuesta correcta La respuesta correcta es la opción C: "Las posiciones son las mismas"
Para poder entender esto, podemos desarrollar:
Ahora, supongamos un ejemplo.
Sea una persona caminando y un auto yendo en la misma dirección, de tal forma que la persona comienza varios metros delante del auto.
A medida que el auto aumenta su velocidad, eventualmente se encontrara al lado de la persona.
Naturalmente, es fácil darse cuenta de que tanto la velocidad como la aceleración del auto serán mayores que las de la persona, pero la posición (almenos en una dimensión) será la misma.
Podemos interpolar esto a cualquier situación similar, sabemos que para dos objetos que estén al lado del otro la posición será la misma, pero sin más contexto no podemos concluir nada sobre la relación entre las velocidades y las aceleraciones.
Con esto en mente, la respuesta correcta es la opción C: "Las posiciones son las mismas"
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mercury is commonly used in thermometer give reasons
Answer:
hi
BECAUSE MERCURY IS USED BECAUSE IT is the only liquid available in room temperatureExplanation:
pls mark as a BRAINLIST
this is physics practical
Answer:
well done buddy
Explanation:
In nonequilibrium, total counterclockwise moments = total clockwise moments. *True False
Answer:
[tex]{ \bf{false}}[/tex]
Explanation:
Because it breaks the law of moments.
In a simple machine the energy input is 120J if the efficiency of the machine is 80% calculate the energy output
Answer:
24J
Explanation:
The energy output will be the 20% it lost in efficiency:
120-80% = 24J
A girl walks 55 m downhill in 3.2 s. What is her average velocity?
Answer:
V = 17.2
Explanation:
Speed = distance(m) / time(s)
= 55m / 3.2s
=17.2 m/s
A body of mass m moves along y such that at time t its position is y(t)= at^2 – bt + c, where a, b, c are constant.
(a) Calculate the acceleration of the body. (b) What is the force acting on it?
Answer:
what do u need help with
Explanation:
A body of mass m moves along X-axis such that its position co-ordiante at any instant t is x = `at^(4)
Hello,Plz Help Which conditions are necessary for rain to form?
The temperature of the air below the cloud is above freezing.
The temperature of the air below the cloud is below freezing.
The sky has no clouds, and the temperature of the air is cold.
There is a warm layer of air and a cold layer of air closer to the ground.
The option There is a warm layer of air and a cold layer of air closer to the ground. is the correct answer
How much power does it take to lift a box with a weight of 50N to put it on a shelf that is 10m high in
10 sec?
We know
[tex]\boxed{\sf Power=\dfrac{Work\:done}{Time}}[/tex]
[tex]\\ \sf\longmapsto Power=\dfrac{Force\times displacement}{Time}[/tex]
[tex]\\ \sf\longmapsto Power=\dfrac{50\times 10}{10}[/tex]
[tex]\\ \sf\longmapsto Power=\dfrac{500}{10}[/tex]
[tex]\\ \sf\longmapsto Power=50W[/tex]
mot o to ro ben luc 6h voi van toc toc 40 km/h
Answer:
? có thể cụ thể hơn ko
Explanation:
In a simple machine the energy input is 120J if the efficiency of the machine is 80% calculate the energy output
Answer:
E_O = 96J
Explanation:
E_O = E_I*(%e/100%)
E_O = 120J*(80%/100%)
E_O = 96J
The T-chart compares the average temperature and humidity of two different environments. Which of the following correctly labels the environments?
a t-chart with one column labeled A listing: High humidity: 70%, Temperature Range: 2 degrees Celsius (35 degrees Fahrenheit) in the winter to 24 degrees Celsius (75 degrees Fahrenheit); and another column labeled B listing: Low humidity (13-15%), Temperature Range: -18 degrees Celsius (-1 degrees Fahrenheit) to 49 degrees Celsius (120 degrees Fahrenheit)
A is a desert, and B is a tundra.
A is a grassland, and B is a desert.
A is a tundra, and B is a rainforest.
A is a tundra, and B is a swamp.
Answer:
A turndra B rainforest
Explanation:
Distance travelled by a free falling object in the first second is: a) 4.9m b) 9.8m c) 19.6m d) 10m
In free fall
[tex]\boxed{\sf s=-\dfrac{1}{2}gt^2}[/tex]
[tex]\\ \sf\longmapsto s=-\dfrac{1}{2}\times 9.8(1)^2[/tex]
[tex]\\ \sf\longmapsto s=-4.9(1)[/tex]
[tex]\\ \sf\longmapsto s=-4.9m[/tex]
Take it positive[tex]\\ \sf\longmapsto s=4.9m[/tex]
Option a is correct