An inclined plane creates a mechanical advantage that reduces the effort required to lift an object to a particular height, but it also lengthens the distance the object must travel.
The slope and height of an inclined plane determine its mechanical advantage. Divide the length of the slope by the height of the slope to determine the ideal mechanical advantage of an inclined plane. A mechanical advantage is created by an inclined plane to lessen the effort required to lift an object to a specific height, but it also lengthens the distance the object must travel. To move the distance and the height of an object going up an inclined plane, the object must move the complete length of the slope of the plane. For instance, if your ramp is 20 meters long and rises 5 meters high, your trade-off is between going 20 meters instead of lifting 5 meters straight up, and your ideal mechanical advantage is 4.
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classify forest of nepal on the basis of height and temperature.
The forest of Nepal has been described here on the basis of the levels of altitude, and different types of climate under the following vegetation zones:
Tropical zone(-1,000m) Subtropical zone (1,000-2,000m) Temperate zone (2,000-3,000m)A 10,000-watt radio station transmits at 535 kHz.
Calculate the energy of a single photon at the transmitted frequency.
A)3.55 × 10-28 J/photon
B)3.55 × 10-31 J/photon
C)6.63 × 10-30 J/photon
The energy of a single photon at the transmitted frequency is
A)3.55 × 10^(-28)J/photon
What is the energy of a single photon?Energy of photon can be rewritten as
E=hv,
Where, h is planck's constant
λ is the wavelength of photon
Where f is the frequency of photon
Thus, the energy of a single photon at the transmitted frequency obtained by using the formula, Energy (E) is equal to Planck's constant (h) times the frequency.
E=6.63×10^(-34)× 535×10^3
E =3.55 × 10^(-28) (J)
Photon energy doesn't depend on the power of radio station
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Energy can come from electricity, but it
can also come from water
false
true
Answer:
the answer is truth
Explanation:
Answer:
I think it might be true...
Why would you have trouble breathing at high altitudes?
A. it is colder at the top of a mountain
B. the oxygen molecules are spread farther apart
C. the oxygen molecules are closer together
Answer:
A. It is colder at the top of a mountain
Explanation:
SE UM CORPO ELETRICAMENTE NEUTRO É CARREGADO COM PROTONS, entao afirmamos; a) fica carregado negativamente b) fica carregado só com cargas positivas c) fica carregado positivamente d) fica com excesso de eletrons e) continua eletricamente neutro
Answer:
c) It gets positively charged
Explanation:
If an electrically neutral body is loaded with protons so it gets positively charged because proton has positive charge. When the protons is added to the neutral body, it can't remain neutral because the quantity of positive charges increases in the nucleus and it gets positively charged while on the other hand, the atom from which protons are taken will acquire negative charge due to presence of more number of electrons and we know that electrons has negative charge.
Question 5 of 10
What are two things that happen when a home computer scanner uses
electromagnetic waves?
A. Red light shines on patterns of black and white, recording the
pattern of reflected light.
B. Objects are exposed to X-rays, which either pass through or are
absorbed by the objects.
C. A silicon chip releases electrons by the photoelectric effect,
producing an image.
D. A charge-coupled device captures visible light that is reflected off
an object
Answer: B. Objects are exposed to X-rays, which either pass through or are
absorbed by the objects.
C. A silicon chip releases electrons by the photoelectric effect,
producing an image.
Explanation:
A car goes from 0 m/s to 13 m/s in 10 seconds. What is the
car's rate of acceleration?
Answer:
V initial = 0 m/s
V final = 13 m/s
Time = 10 s
Vf - Vi / T =
13-0/10 =
1.3 m/s^2
Explanation:
Hey<3
Las ondas tienen elementos de posición y temporales uno de ellos se define como, La distancia recorrida por una onda en un período se llama Opciones: Longitud de onda Frecuencia Período Velocidad
Answer:
Velocidad.
Explanation:
Físicamente hablando, la velocidad es la distancia recorrida por unidad de tiempo. En el caso de las ondas se trata de la distancia recorrida en un período de tiempo.
Por ende, la opción correcta es: Velocidad.
Each gene controls the production of one or more specific ( Blank).
Answer:
Genes are located in the CHROMOSOME
Explanation:
Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes. Every normal human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. A trait is any gene-determined characteristic and is often determined by more than one gene.
Answer:
CHROMOSOME
Explanation:
When acceleration and velocity are in opposing directions, the speed will
Answer:
If the velocity and acceleration are in the same direction (both have the same sign - both positive or both negative) the object is speeding up. If the velocity and acceleration are in opposite directions (they have opposite signs), the object is slowing down.
Please mark my answer brainliest for further answers :)what is the amplitude and wavelength of the wave shown below?
Amplitude: 30 cm; wavelength 110cm.
explain why the rate of diffusion of a gas decreases with decrease in temperature
Temperature: Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion. Solvent density: As the density of a solvent increases, the rate of diffusion decreases.
The half-life of technetium-99 is 6 hours.How much of a 100 milligram sample of
technetium-99 will remain after 30 hours? *
O 3.125 mg
O 12.5 mg
O 6.25 mg
O 1.56 mg
A sports car accelerates at 4.3 m/s2. If the car exerts a force of 4106 N, what is the mass of the sports car?
Answer:
954.88kg
Explanation:
F=ma
Given that,
F = 4106N
and a = 4.3m/s²
By rearranging the equation,
m = F÷a
m = 4106 ÷ 4.3
m = 954.88kg
EASY QUESTION IM GIVING BRAINLIEST!!
20 PTS
Maybe stainless steel :)
A tuba creates a 4th harmonic of frequency 116.5 Hz. What is the frequency of the third harmonic? (Speed of sound = 343 m/s) (Unit = Hz )
Answer:
3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz
Explanation:
Given -
4th Harmonic frequency created by tuba is equal to [tex]116.5[/tex] hertz
1st Harmonic Frequency created by tuba is equal to [tex]\frac{116.5}{4}[/tex] hertz
3rd Harmonic Frequency created by tuba is equal to [tex]3* \frac{116.5}{4}[/tex] hertz
3rd Harmonic Frequency created by tuba is equal to [tex]87.375[/tex] hertz
Answer:
87.375 Acellus
Explanation:
A wave has a frequency of 60 Hz and a wavelength of 1.7 meters. What is the speed of this wave? equation, substitution
Answer:
v = 102 m/s
Explanation:
Given that,
The frequency of a wave, f = 60 Hz
Wavelength = 1.7 m
We need to find the speed of this wave. The formula for the speed of a wave is given by
[tex]v=f\lambda[/tex]
Substitute all the values,
[tex]v=60\times 1.7\\\\v=102\ m/s[/tex]
So, the speed of the wave is equal to 102 m/s.
Why did the lemon battery work and how many volts does one produce?
O The juice of the lemon is an acid and the acid caused 2 volts.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 5 V.
O The juice of the lemon is an electrolytic solution allowing electrons to flow and created around 1.5 V.
O The juice of the lemon is an acid and the acid caused 1 volt.
Answer:
the third one
Explanation:
What is the color of lava at its hottest? Help asap
How is our magnetic field made?
Answer:
REVENGE
Explanation:
HAHAAHAHAAHAHAHA
If the model spacecraft were made ONLY out of plastic (no other materials) would it be repelled by the magnet launcher?
yes or no?
Answer:
no it wont i think
Explanation:
Which of the following skills that you learn while participating in a team sport is also a life skill that employers look for?
A.
Showing respect to others
B. Working well with others
c.
Problem solving
D
All of the above
Answer:
The answer is all of the above
Explanation:
Answer:
D
Explanation:
All waves change speed when they enter a new medium, but they don't always bend. When does bending occur?
A young boy swings a yo-yo horizontally above his head so that the yo-yo has a centripetal acceleration of 200 m/s^2. If the yo-up’s string is 0.33 m long, what is the yo-up’s tangential speed?
Answer:
v = 8.12 m/s
Explanation:
The centripetal acceleration of the yo-yo is given by the following formula:
[tex]a_c = \frac{v^2}{r}\\\\v^2 = a_cr\\v = \sqrt{a_cr}[/tex]
where,
v = tangential speed = ?
ac = centripetal acceleration = 200 m/s²
r = radius = length of string = 0.33 m
Therefore, using the given values in the formula, we get:
[tex]v = \sqrt{(200\ m/^2)(0.33\ m)}[/tex]
v = 8.12 m/s
Can someone please help me with science.
Answer:
The answers to your questions are given below
Explanation:
22. The energy of an electromagnetic wave and it's frequency are related by the following equation:
E = hf
Where:
E => is the energy
h => is the Planck's constant
f => is the frequency
From the equation i.e E = hf, we can conclude that the energy of a wave is directly proportional to it's frequency. This implies that an increase in the frequency of the wave will lead to an increase in the energy of the wave and also, a decrease in the frequency will lead to a decrease in the energy of the wave.
23. Gamma ray and radio wave are both electromagnetic waves. All electromagnetic waves has a constant speed of 3×10⁸ m/s in space.
Thus, gamma ray and radio wave have the same speed in space.
An elevator is rising up a vertical shaft in a skyscraper. Between the 12th and 20th floors, it travels at a constant speed. During this time period:
1.) The only unbalanced force acting on it is air resistance.
2.) The forces acting on it are balanced so the net force is zero.
3.) The upward force is greater than the combined downward forces of gravity and air resistance, making it move upward.
4.) There are no forces acting on it so the net force is zero.
help please :)))))))))))
When steam turns a turbine, what is the energy conversion? *
1. Thermal to mechanical
2. Electrical to mechanical
3. Mechanical to chemical
(pls help)
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-if you answer correctly ill give you brainliest which will give you 23pts-
Answer: wood
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ol
ir Q.No.la ताल भनका क
The unit of density is called derived unit, why?
Answer: Density is measured in kg⋅m−2 . This means that it is derived from fundamental units which are the kilogram and metre. ... hence the kilogram and the metre are SI units and density is a derived unit from these units
Explanation:
they are calculated from the base units mass and length. Density is one derived unit; force, area, volume, specific volume and mass fraction are also derived units. Each derived unit is defined by a quantity equation.
Answer:
Density is obtained through mathematical manipulation.
Explanation:
A derived unit is obtained through mathematical calculation and the result is written with the S.I unit kg/m³