Answer: -25.4
Explanation:
Acellus don’t forget the negative sign
Answer:
-25.4
Explanation:
Acellus
Give the man above me brainliest!
how are speed and distance similar?
Answer:
When an object moves in a straight line at a steady speed, we can calculate its speed if we know how far it travels and how long it takes. This equation shows the relationship between speed, distance traveled and time taken: Speed is distance divided by the time taken.
Explanation:
Thats what goog.le said so if its wrong blame G O O G L E
Two resistors, R1 and R2, are
connected in parallel. R1 = 35.0
ohms, and the equivalent resistance
of the combination is 14.5 ohms.
What is the value of R2?
(Unit = ohm)
Answer:
The value of R₂ is equal to 24.75 ohms.
Explanation:
Given that,
Two resistors, R₁ and R₂, are connected in parallel.
The equivalent resistance is 14.5 ohms
We need to find the value of R₂.
When two resistors are connected in parallel. The equivalent resistance is given by :
[tex]\dfrac{1}{R_{eq}}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\\\\\dfrac{1}{14.5}=\dfrac{1}{35}+\dfrac{1}{R_2}\\\\\dfrac{1}{R_2}=\dfrac{1}{14.5}-\dfrac{1}{35}\\\\\dfrac{1}{R_2}=0.04039\\\\R_2=\dfrac{1}{0.04039}\\\\R_2=24.75\ \Omega[/tex]
So, the value of R₂ is equal to 24.75 ohms.
Science If you want to find the energy quantum of light, you multiply the frequency of the radiation (v) by "h". What is "h"?
Answer:
"h" signifies Planck's constant
Explanation:
In the equation energy E = h X v
The "h" there signifies Planck's constant
Planck's constant is a value, that shows the rate at which the energy of a photon increases/decreases, as the frequency of its electromagnetic wave changes.
It was named after Max Planck who discovered this unique relationship between the energy of a light wave and its frequency.
Planck's constant, "h" is usually expressed in Joules second
Planck's constant = [tex]6.62607015 \times 10^{-34} J.s[/tex]
On 7th June 2017 more than 50% of the electricity generated in the UK was from renewable sources. (a) Suggest two environmental conditions in the UK on 7th June 2017.
Answer:
high sunlight intensity
high wind speed
Explanation:
The environmental conditions in the UK on 7th June 2017 are improved because the electricity generation in the UK is done by the renewable sources of energy.
What are renewable resources?A renewable resource, is a type of natural resource that will refill to replace the fraction destroyed by consumption in a finite length of time in a human timescale, either naturally or other periodic processes.
The environmental conditions in the UK are improved on 7th June 2017 due to following reasons ;
1. The renewable energy sources create comparatively low amounts of Gas (GHG) emissions and traditional pollution,
2. During manufacture and transportation. They do emit some emissions and pollutants.
3. Using fossil fuels to generate electricity that creates no greenhouse gas emissions and lowers some forms of air pollution.
4. Increasing energy diversity and minimizing reliance on foreign fuels.
To learn more about the renewable resources, refer to the link;
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The graph represents the reaction 2H20 + 02->2H2O2 as it reaches
equilibrium. Based on the graph, which two statements about this réaction
are true?
Answer:
At point 3, the reactants and products reach their equilibrium concentrations.
At point 1 the reaction proceeds mostly in the forward direction.
Explanation:
What is the total resistance of the circuit shown below?
Answer:
R = 12 ohm
Explanation:
Resistance are in parallel
1 ÷ Resistance = 1 ÷ 20 + 1 ÷ 30
1/R = 50/600
1/R = 1/12
R = 12 ohm
Pleas answer all three no links I will report you brainliest if right and 50 points
Answer:
1. 30,000 Kelvin, or 53,540 Farenheit, or 29,726 Celcius
2. i'm not sure, I'm sorry. I know that there are several, and one of them is helium.
3. This fusion changes the inner composition of the star, eventually it becomes a red giant or supergiant
Explanation:
Hope this helps :)
RUE or FALSE: Red hair and freckles is a helpful (good) mutation.
A force of 12 N is applied to a ball which has a mass of 6 kg. What is the acceleration of the ball?
Answer:
The acceleration of the bowling ball is
1.875 m/s2
How would you design an experiment to condition a rabbit to salivate to the ringing of a cell phone?
7. The Voyager 1 space probe was launched in the 1970's and is now the furthest
man-made object from earth - it has actually left the solar system. At its current speed it
could travel across the US, a distance of about 4500 km in 265 seconds (a little less
than 5 minutes!) What is its average speed in kilometers per second?
PLEASE HELP I NEED THE FORMULA AND ANSWER THANK YOU!!
Answer:
v = 16.98 km/s
Explanation:
Given that,
Distance, d = 4500 km
Time, t = 265 s
We need to find its average speed. The total distance covered divided by total time taken is called average speed of an object. So,
[tex]v=\dfrac{4500\ km}{265\ s}\\\\=16.98\ km/s[/tex]
So, the average speed is 16.98 km/s.
Fill in the term that completes the statement. The north and south poles of a magnetic field produced by an electromagnet will switch when the direction of the changes.
Answer:
when the direction of the Current changes.
Explanation:
Electromagnet refers to an iron ore wrapped around with a coil of wire, in presence of electric current. As it acts like a magnet, when current is passed through it.
The north & south poles of magnetic fields produced by such magnet, change with direction of current passed through it.
Answer:
current
Explanation:
edge2021
Which of the following has 5 significant digits?
O 0.00030
O 50,000
O 100.0300
O 500.00
Answer:
50,000
Explanation:
when we say significant digits we mean the numbers that matter when stating the value of the number.
0.00030 can be written as 0.0003 without affecting it's value, the last zero is not significant.
50,000 all of the numbers here are significant to its value if we take away a zero it becomes 5,000 which is not equal to 50,000. so every digit here is significant
100.0300 can be written as 100.03 without loosing any value
500.00 can be written as 500 without loosing any value. ( think of this as $500.00, this also equals $500)
If Europium (Eu) undergoes proton decay and loses 3 protons, which element will it become?
Answer:
Neodymium (Nd)
Explanation:
An element is made up of atom, which contains three subatomic particles namely; proton, electron, and neutron. In a neutral atom, the number of protons determines the atomic number of that element and the atomic number of an element is the identity of that element in the periodic table.
Hence, a change in the proton number of an element means a change in the atomic number and ultimately a change of that element. In this question, Europium (Eu) element with atomic number, 63, loses three protons. This means that that atom now has 60 protons, which denotes the atomic number of another element called Neodymium (Nd).
Therefore, Europium (Eu) element has become Neodymium (Nd) due to loss of protons.
A bicycle possesses 1000 units of momentum. What would be the bicycle's momentun if,it's velocity is doubled?
Explanation:
p = mv ---> let v --> 2v (velocity is doubled) then
p' = m(2v)
= 2(mv)
= 2p
so the momentum also doubled
During an extremely foggy day during the medieval era, an architect wants to determine the height of a building. He cannot see to the top of his building, but he stands on the roof and lowers a pendulum to the ground. If the pendulum swings with a period of 12 seconds, what is the height of the building?
Answer:
Height of the building = 35.78 m
Explanation:
Given that,
The time period of a pendulum is, T = 12 s
We need to find the height of the building. The formula for the time period of a pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
l is the height of the building
[tex]l=\dfrac{T^2g}{4\pi^2}\\\\l=\dfrac{(12)^2\times 9.8}{4\times 3.14^2}\\\\l=35.78\ m[/tex]
So, the height of the building is 35.78 m.
For each 1 degree Celsius that temperature incileases, the speed of
sound ___ by 0.6 m/s.
Answer:
A: For each 1 degree Celsius that temperature decreases, the speed of sound decreases by 0.6 m/s. So sound travels through dry, -20 °C air at a speed of 319 m/s
Explanation:
What is the speed of light (f = 5.09 E14 Hz) in glycerol?
Answer:
The speed of light in glycerol is 2.04×108 m/s .
Explanation:
The speed of light in glycerol will be 2.03 ×10⁷ m/sec. The speed of light is found as the ratio of the speed of light in air and the refractive index.
What exactly is the Refractive Index?The level of bending of a light beam as it goes from one medium to another is known as the refractive index of the medium.
The frequency of the wave is given as;
[tex]\rm f = 5.09 \times 10^{14} Hz[/tex]
The refractive index of ethyl alcohol is n=1.4722
The substance's index of refraction yields the ratio of light speed in a vacuum to light speed in that medium, the speed of light is sound as;
[tex]\rm n = \frac{C}{v} \\\\ \rm v = \frac{C}{n} \\\\ \rm v = \frac{3 \times 10^8}{1.4722} \\\\ v= 20377660.00\ m/sec \\\\ v= 2.03 \times 10^7 m/sec[/tex]
Hence, the speed of light in glycerol will be 2.03 ×10⁷ m/sec.
To learn more about the refractive index, refer to the link;
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A racer covers one lap of a 1200 meter track at a speed of 27 meters per second. How long does it take to ride one lap?
Answer:
44.44 seconds
Explanation:
You just do 1200/27
Body types can be described as _____ (check all that are correct)Immersive Reader
(1 Point)
apple
pear
rectangle
hourglass
stump
oblong
lean
body builder
Pluto has a gravitational field strength (g) of 0.61. If you have a weight of 1000 N on the Earth (g = 10), what will your weight be on Pluto?
A. 0.61 N
B. 6.1 N
C. 61 N
D. 610 N
Reset Selection
Answer: Alternative D.
------------------------------------------------
To calculate the gravitational weight of other planets, the formula is used:
[tex]\large\boxed{{\mathbf{P = m \cdot g}}}[/tex]
Data:
Mass(m): 1000 N
Gravity(g): 0.61
Weight(p): ?
We replace data:
P = m × g
P = 1000 N × 0.61
P = 610 N
Result: Its weight on Pluto will be 610 Newtons (Alternative D).
Anyone??????????????????
Explanation:
I believe it is b or c. most likely b
Heat from a fire is transferred as the air warmed by the fire rises. Which type
of heat transfer is occurring?
A. Refraction
O B. Covection
O C. Conduction
D. Radiation
i’ll give brainliest!! please help and answer correctly! plsss answer quick
Answer: The motion of the object will remain the same
Explanation:
A stone is dropped from the top a 45m hign building how fast will it moving when it reaches the ground? Ande what will its velocity be?
Answer:
29.7 m/s fast, velocity is 29.7 m/s
Explanation:
Applying,
v² = u²+2gs...................... Equation 1
Where v = final velocity, u = initial velocity, g = acceleration due to gravity, s = distance.
Given: u = 0 m/s (dropped from height), s = 45 m
Constant: g = 9.8 m/s²
Substitute these values into equation 1
v² = 0²+2×9.8×45
v² = 882
v = √(882)
v = 29.7 m/s.
Hence the stone will be moving 29.7 m/s fast and the velocity is also 29.7 m/s
the volume of the container was 2.5 L at a temperature of 350K. At what temperature will the volume of the container be double its initial value, knowing that pressure remains constant ? (Find the temperature in Celsius ) Show your work below.
Answer:
Explanation:
Given the following data;
Initial volume = 2.5 L
Initial temperature = 350 K
Final volume = 2V1 = 2*2.5 = 5 L
To find the final temperature, we would use Charles law;
A wave has a wavelength of 5m and frequency of 5 Hz. What is the speed of the wave?
How high should a box of mass 20kg is lifted to store energy of 10,000 J? (g=10m/s)
Answer:
Height, h = 50 meters.
Explanation:
Given the following data;
Mass = 20kg
Potential energy = 10,000 J
Acceleration due to gravity, g = 10m/s²
To find the height of the box;
Potential energy can be defined as an energy possessed by an object or body due to its position.
Mathematically, potential energy is given by the formula;
[tex] P.E = mgh[/tex]
Where,
P.E represents potential energy measured in Joules.m represents the mass of an object. g represents acceleration due to gravity measured in meters per seconds square. h represents the height measured in meters.Substituting into the formula, we have;
10000 = 20*10*h
10000 = 200h
Height, h = 10000/200
Height, h = 50 meters.
Qué esperas que pase cuando las partículas alfa de poca energía se acerquen a un núcleo con muchos protones?
Answer:
Sufrirá una deflección en su recorrido.
Explanation:
Las partículas alfa son nucleos de He (dos protones mas dos neutrones), por lo tanto tienen una carga neta positiva.
Ahora, al acercarse al nucleo de un átomo con muchos protones y con baja energía, la partícula alfa sufrirá una deflección en su recorrido debido a las fuerzas de repulsión electrostática que siente la partícula, ya que el nucelo posee caraga positiva.
Espero te haya sido de ayuda.
[PLEASE HELP ASAP TY]
light is shone on a diffraction grating with d=2.25 x 10^-6 m. the first order (m = 1) maximum occurs at a 15.7 angle. what is the wavelength of the light in nanometers? (hint: the answer will be between 400 and 700)
[?] nm
Answer:
608.9 nm
Explanation:
trust me cutie
The wavelength of light in nanometers is 0.017 x [tex]10^{3}[/tex] nm.
We have -
d = [tex]2.25\times 10^{-6}[/tex]
n = 1 = order
θ = 15.7 degrees
We have to calculate the wavelength of light (λ) in nanometers.
What is diffraction?Diffraction is defined as the bending or spreading of light waves as it passes through the edge of an object or through a small slit (size of slit should be very very less then wavelength of light) is called diffraction.
According to the question, we can use the following relation to calculate wavelength as -
d sinθ = nλ
λ = [tex]\frac{dsin\theta}{n}[/tex]
λ = d sinθ (since n = 1)
λ = [tex]2.25\times 10^{-6}[/tex] x sin (15.7)
λ = 0.0079 x 2.25 x [tex]10^{-6}[/tex]
λ = 0.0177 x [tex]10^{-6}[/tex] m
We know that -
1 nanometer = [tex]10^{-9}[/tex] m
1 m = [tex]\frac{1}{10^{-9} }[/tex]
0.017 x [tex]10^{-6}[/tex] m will be equal to = [tex]\frac{0.017\times 10^{-6} }{10^{-9} }[/tex] = 0.0177 x [tex]10^{3}[/tex] nm
Hence, the wavelength of light in nano meters is 0.0177 x [tex]10^{3}[/tex] nm.
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