Changes in forms of energy are called energy?
Answers
Answer:
Energy transformation
Explanation:
Energy transformation is when energy changes from one form to another.
Related Questions
What is the solubility of KNO3 at 80 degrees?
Answers
Answer:
100 g H₂O
Explanation:
Please mark me as brainliest
The velocity of a free falling ball at different time intervals on unknown planet is shown in Figure 1.24.
Answer all of the following questions based on the image
A) What is the acceleration due to gravity of the planet?
B)What is the velocity at positions A and B?
C)What happens to the magnitude of velocity with passage of time? Why?
D)What factor(s) can influence the falling object on the Earth?
Answers
Answer:
a1 = (V2 - V1) / 1 s = 3.75 m/s^2
a2 = (V2 - V1) / (t2 - t1) = (7.5 - 3.75) / 1 s = 3.75 m/s^2
a3 = (V2 - V1) / (t2 - t1) = (7.5 - 3.75) / 1 s = 3.75 m/s^2
A) a = (a1 + a2 + a3) / 3 = 3.75 m/s^2
v = a (t2 - t1)
B) after 1 sec v = 3.75 m / sec^2 * 1 sec = 3.75 m/s
after 2 sec v = v0 + a t = 3.75 m/s + 3.75 m/s^2 * 1 s = 7.5 m/s
C) The velocity increases proportionaly to the time
D) One factor depends on the variation of the acceleration due to gravity because of different positions of measurement (on earth)
A much larger factor is due to air resisance of the air on the falling object
An object on the end of a spring is oscillating in simple harmonic motion. If the amplitude of oscillation is doubled, how does this affect the object’s maximum speed?
Answers
Answer:
The maximum speed of the oscillating object doubles as well.
Explanation:
The oscillatory motion of the object on the spring can be modelled using this equation below:
\(Vmax= A\omega\)
Where
Vmax = the maximum speed of the oscillating object.
A = Amplitude of the oscillating object.
\(\omega\) = angular velocity of the oscillating object.
If the amplitude, A becomes doubled, the new amplitude will be = 2A.
As a result, \(Vmax = 2 A \omega\)
This shows that the maximum speed has doubled in its value
During a laboratory experiment, the temperature of the gas in a balloon is varied and the
volume of the balloon is measured.
A)
Which quantity is the independent variable?
B)
Which quantity is the dependent variable?
Answers
B. The DV is the volume of the balloon.
This is because the temperature of the gas is the variable being manipulated in the experiment (Independent) and the volume is changing based on the shifts of the temperature (thus volume is Dependent).
What are other names For Neurofibromatosis?
Answers
Answer:
neurofibromatosis also calles von Recklinghausen's disease.
Prove me wrong:
So you know how you can't really breathe in smoke or it'll make u sick right? and let's use wood for example, when you burn wood, it kinda shrinks, right? so when it burns, it's kinda like it's evaporating, and when something evaporates, it has to go somewhere, right? so, in conclusion, the reason you cant breathe in the smoke from wood is that if you do, a piece of wood will form in your lungs and kill you.
Answers
PLEASE HELP
atoms are split at power plant to create electricity
A. radiant to mechanical
B. nuclear to electrical
C. chemical to radiant
D. mechanical to electrical
Answers
Answer:
C. nuclear to electrical
Answer:
c its c noob
Explanation:
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)
Answers
Answer: According to http://www.scifun.org, "Bernoulli's Principle says that the pressure decreases inside a stream of flowing air. When the balloon begins to move out of this low pressure stream, the higher pressure of the air in the room pushes it back into the moving stream"
The work function for chromium metal is 4.37 ev. What wavelenght of radation must be used to eject?
Answers
Wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s is 63.9nm.
Equation :Einstein's equation for the photoelectric effect
hv = A + W
Where,
Energy of photon : E = hvx = hxc/λ
The work function for chromium is A
Planck's constant h= 6.626X 10⁻³⁴ Js
speed of light c = 2.998X10⁸ m/s
Velocity of 2300 km/s = 2300 X 10⁶ m/s
The kinetic energy of emitted electron
W = mv²/2 = (9.10939 X 10⁻³¹ kg X (2300X10⁶ m/s)²)/2 = 2.409X10⁻¹⁸
Hence,
λ = ch/A+W
λ = (6.626X10⁻³⁴JsX2.998X10⁸m/s)/(7X10⁻¹⁹J + 2.409X10⁻¹⁸J)
= 19.865X10²⁶Jm/3.109X10⁻¹⁸J = 6.39X10⁻⁸= 63.9 nm
Wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s is 63.9nm
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I understand that the question you are looking for is "The work function for chromium metal is 7.0 x 10-19 J (4.37 eV). What wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s?"
Ill mark the brainliest pls lmk what answer ty
Answers
2800 m
Further explanationGiven
time = 80 s
average velocity = 35 m/s
Required
total distance before it broke down
Solution
Average velocity : total displacement : total time
Can be formulated
avg velocity = Δx : Δt
Input the value :
Δx=avg velocity x Δt
Δx = 35 m/s x 80 s
Δx = 2800 m
In addition, if we are asking for velocity, we must know the starting and ending points (displacement)
But if we calculate the total distance, what is written is the average speed
avg speed = total distance : total time
average method and it reports the tollowing unit data tor the rorming department. Units completed in the torming department are transferred to the painting department. Production cost information for the forming department follows. . Calculate the equivalent units of production for both direct materials and conversion for the Forming department. o. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming department c. Using the weighted average method, assign costs to the forming department's output-specifically, its units transferred to painting and its endina work in brocess inventorv. Calculate the costs per equivalent unit of production for both direct materials and conversion for the For Jsing the weighted average method, assign costs to the forming department's output-specifically, its 4 d its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the equivalent units of production for both direct materials and conversion for the forming department. a. Calculate the equivalent units of production for both direct materials and conversion for the Forming departm b. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming c. Using the weighted average method, assign costs to the forming department's output-specifically, its units tra and its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the costs per equivalent unit of production for both direct materials and conversion for the forming department Required information Using the weighted average method, assign costs to the forming department's output-specifically, its units trar painting and its ending work in process inventory.
Answers
Given information: The average method reports the following unit data for the forming department. Units completed in the forming department are transferred to the painting department. Production cost information for the forming department follows.
Direct materials:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Direct materials cost = $202,500
Conversion costs:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Conversion cost = $189,000
a. Calculation of equivalent units of production for both direct materials and conversion for the forming department:
Equivalent units of production = Units completed during the period + (Ending work in process inventory * Degree of completion)
Direct materials:
Equivalent units of production = 45,000 + (5,000 * 50%) = 47,500 units
Conversion costs:
Equivalent units of production = 45,000 + (5,000 * 60%) = 48,000 units
b. Calculation of the cost per equivalent unit of production for both direct materials and conversion for the forming department:
Cost per equivalent unit of production = Total cost for the period / Equivalent units of production
Direct materials:
Cost per equivalent unit of production = $202,500 / 47,500 units = $4.26 per unit
Conversion costs:
Cost per equivalent unit of production = $189,000 / 48,000 units = $3.94 per unit
c. Calculation of the cost assigned to the forming department's output using the weighted average method:
Total cost = Cost of units transferred out + Cost of ending work in process inventory
Cost of units transferred out = Number of units transferred out * Cost per equivalent unit of production
Cost of ending work in process inventory = Number of units in ending work in process inventory * Cost per equivalent unit of production
Direct materials:
Cost of units transferred out = 40,000 * $4.26 per unit = $170,400
Cost of ending work in process inventory = 5,000 * $4.26 per unit = $21,300
Total cost = $170,400 + $21,300 = $191,700
Conversion costs:
Cost of units transferred out = 40,000 * $3.94 per unit = $157,600
Cost of ending work in process inventory = 5,000 * $3.94 per unit = $19,700
Total cost = $157,600 + $19,700 = $177,300
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How long will it take a runner to complete a marathon race of 42. 2 km if that runner can maintain an average speed of 4. 1 m/s?
Answers
It would take the runner approximately 10,268.29 seconds (or about 2 hours, 51 minutes, and 8 seconds) to complete a marathon race of 42.2 km, maintaining an average speed of 4.1 m/s.
We can use the formula:
time = distance ÷ speed
to calculate the time it would take the runner to complete a marathon race of 42.2 km, given an average speed of 4.1 m/s.
First, we need to convert the distance to meters, as the speed is given in meters per second:
42.2 km = 42,200 m
Now, we can substitute the values into the formula:
time = distance ÷ speed
time = 42,200 m ÷ 4.1 m/s
time ≈ 10,268.29 s
Thus the time that the runner would take is 10,268.29 seconds to complete a marathon race.
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Una carga positiva de 4 x 10-5 C, se encuentra a 0.05 m de otra carga positiva de 2 x 10-5 C. Calcular la fuerza que se ejerce entre las dos cargas
Answers
Answer:
La fuerza que se ejerce entre las dos cargas es 2880 N.
Explanation:
La ley de Coulomb indica que los cuerpos cargados sufren una fuerza atractiva o repulsiva al acercarse. La fuerza es atractiva si las cargas son del signo opuesto y repulsión si son del mismo signo. El valor de la fuerza es proporcional al producto del valor de sus cargas e inversamente proporcional al cuadrado de la distancia que los separa. Esto se expresa matemáticamente como:
\(F=k*\frac{Q*q}{r^{2} }\)
donde:
F es la fuerza eléctrica de atracción o repulsión. Se mide en Newtons (N). Q y q son los valores de las dos cargas puntuales. Se miden en culombios (C). r es el valor de la distancia que los separa. Se mide en metros (m). k es una constante de proporcionalidad llamada constante de la ley de Coulomb.En este caso:
F= ?Q= 4*10⁻⁵ Cq= 2*10⁻⁵ Cr= 0.05 mk= 9*10⁹ \(\frac{N*m^{2} }{C^{2} }\)Reemplazando:
\(F=9*10^{9} \frac{N*m^{2} }{C^{2} }*\frac{4*10^{-5} C*2*10^{-5}C }{(0.05 m)^{2} }\)
F= 2880 N
La fuerza que se ejerce entre las dos cargas es 2880 N.
Find the center of mass of a 50-cm long rod, made of 25 cm of iron (density 9 g/cm3) and 25 cm of aluminum (density 3.2 g/cm3). Express the location of the center of mass as measured from the left of the rod, assuming that the iron part of the rod is on the left and the aluminum part is on the right.
Answers
Answer:
The center of mass is at -1.58 cm, that is towards the left of the origin, or towards the copper end.
Explanation:
Given information: Let the length of the rod is 2l = 100cm
The greatest variation in size, mass, and luminosity occurs in:.
Answers
The greatest variation in size, mass, and luminosity occurs in elliptical galaxies.
What is Variation?
This is defined as the difference from the norm which is exhibited by objects.
In the solar system, variation in features such as size, mass, and luminosity occurs mostly in elliptical galaxies due to presence of array of stars thereby making it the most appropriate choice.
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At what distance from a 27 mw point source of electromagnetic waves is the electric field amplitude 0. 060 v/m ?
Answers
The distance from a 27 mw point source of electromagnetic waves where the electric field amplitude 0. 060 v/m will be 21.21 m .
Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.
The highest point of a wave is known as 'crest' , whereas the lowest point is known as 'trough'. Electromagnetic waves can be split into a range of frequencies. This is known as the electromagnetic spectrum.
c = 3 * \(10^{8}\) m/s
∈ = 8.85 * \(10^{- 12}\) \(C^{2}\) / N/ \(m^{2}\)
E = 0. 060 v/m
I = P / 4π\(r^{2}\)
Also , I = c ∈ \(E^{2}\) /2
\(r^{2}\) = P / 4π I equation 1
substituting the value of I in equation 1
\(r^{2}\) = 2 P / 4π (c ∈ \(E^{2}\) )
\(r^{2}\) = 2 * 27 * \(10^{-3}\) / 4 * 3.14 * 3 * \(10^{8}\) * 8.85 * \(10^{- 12}\) * \((0.06)^{2}\)
r = 21.21 m
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Emily easygo can paddle her canoe at 8 m/s in still water. with this speed she then paddles upstream in a river that runs downstream at 6 m/s. her friend sitting on shore sees her speed as:_________
Answers
The friend sitting on the shore sees Emily's speed as 2 m/s when she paddles upstream in a river that runs downstream at 6 m/s.
The relative velocity of Emily's canoe with respect to the shore observer can be calculated by considering the velocities of the canoe and the river. When Emily paddles upstream, her speed relative to the water is the difference between her canoe's speed and the downstream flow of the river. In this case, Emily's speed relative to the water is 8 m/s - 6 m/s = 2 m/s. Since the observer on the shore is stationary relative to the water, they see Emily's canoe moving at the same speed relative to them as it does relative to the water, which is 2 m/s.
Using the formula for relative velocity, which is given by \(\[v_{\text{relative}} = v_{\text{object}} - v_{\text{reference}}\]\), we subtract the downstream velocity of the river from Emily's canoe's speed to find her speed relative to the water. The observer on the shore sees Emily's speed as the same as her speed relative to the water, as they are stationary relative to the water. Thus, the friend sitting on the shore sees Emily's speed as 2 m/s.
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wind turbines convert the wind's __________ energy into electricity.
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Wind turbines convert the wind's kinetic energy into electricity. This conversion of wind energy into electricity occurs through the principles of electromagnetic induction.
Wind turbines harness the kinetic energy of the wind and convert it into electrical energy. The process involves several key components. As the wind blows, it causes the turbine's blades to rotate. The rotation of the blades is driven by the kinetic energy of the wind. The spinning motion of the blades is connected to a generator, which converts the mechanical energy into electrical energy.
The conversion of wind energy into electricity occurs through the principles of electromagnetic induction. Inside the generator, the rotating motion of the turbine's blades induces a magnetic field. This magnetic field interacts with coils of wire, generating an electric current. This current is then conducted through a system of wires and transformers, ultimately delivering usable electricity to homes, businesses, or the power grid.
By harnessing the wind's kinetic energy, wind turbines provide a renewable and sustainable source of electricity. They play a significant role in generating clean energy and reducing reliance on fossil fuels, contributing to the transition to a more environmentally friendly power generation system.
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a girl throws a rock horizontally, with a velocity of 8.0 m/s, from a bridge. it falls 20 m to the water below. how far does the rock travel horizontally before striking the water, assuming negligible air resistance?
Answers
The rock thrown horizontally at 8.0 m/s from a bridge before it hits the water = 16.15 m.
Free fall motionFree fall motion is a motion that falls from a height without having an initial velocity. As long as the object is falling, air resistance is negligible, its acceleration is constant and the magnitude is equal to the acceleration due to gravity. In addition, the time it takes for an object to fall does not depend on its mass, but depends on its height.
We have,
The velocity of the rock = 8.0 m/s ⇒ v
Fall height of the rock = 20 m ⇒ h
And, to determine how far does the rock travel horizontally before striking the water, we use the equation:
d = v x t
We have the velocity (v), but don't have the time (t).
So, determine the time first
Use the equation to determine the height:
h = ½ gt²
20 = ½ (9.8)t²
t² = 4.08
t = \(\sqrt{4.08}\)
= 2.01 s
So, the distance the stone traveled before striking to the water:
d = (8.0) (2.01)
= 16.15 m
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Can anyone answer my questions that I've asked?
Answers
Answer:
76 N north-east
Explanation:
V = √(44²+62²) = 76 N
Supposed that you are an on-the-job trainee in a private investigating company tasked to investigate a "hit and run" case. The alleged suspect was captured by a CCTV camera driving a road leading to the place of incident. The suspect denied the allegation, saying that he was driving very slowly with a constant speed. Because of the short time difference when he was caught by the camera and when the accident happened, he insisted that it was impossible that he would already be at the place when the crime took place. But when you are viewing the CCTV footage, you noticed that his car has left oil spots on the road. When you checked the spots on the site of the accident, you found out that they are still evident. So, you began to wonder if the spots can be used to investigate the motion of the car driven by the suspect and check whether he was telling the truth or not
Answers
The oil spots left by the suspect's car can potentially be used to investigate the motion of the car and determine whether the suspect's claim of driving slowly with a constant speed is true or not.
The oil spots left by a moving vehicle can provide valuable information about its motion. By examining the size, shape, and distribution of the oil spots, it is possible to gain insights into the car's speed, acceleration, and direction of travel. If the suspect's car was indeed moving slowly with a constant speed, the oil spots would be expected to exhibit a pattern consistent with that type of motion.
To investigate the motion of the car, the investigator can analyze the spacing between the oil spots, their shape and size, and any patterns they form on the road. If the spots are closely spaced, it may indicate that the car was moving slowly. Conversely, widely spaced frequency spots could suggest a higher speed. The shape and size of the spots can also provide information about the car's acceleration and braking.
By comparing the characteristics of the oil spots on the road near the accident site with the recorded footage from the CCTV camera, the investigator can determine if the car's motion aligns with the suspect's claim of driving slowly with a constant speed. This analysis can help in assessing the credibility of the suspect's statement and provide valuable evidence in the hit-and-run investigation.
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Hierarchy of the universe this is due today pls help me
Answers
Answer:
what is the question.
Explanation:
2 evidences of rectilinear propagation off light
Answers
Hope it helps:)
A car and a truck move on the road in the same direction at the same
speed. Both vehicles slow down with the same stopping force.
Which statement best explains why the truck needs to more time to stop?
Answers
Answer:
The statements are not given, so I will answer in a general way.
We know that when one object is moving with a velocity V, and it wants to come to stop, it needs to accelerate in the opposite direction to the initial velocity (Or decelerate).
As larger this acceleration is, the faster the object will come to a full stop.
Now we have a car (with a mass m) and a truck (with a mass M) are moving with a velocity V.
We can assume that the mass of the truck is larger than the mass of the car, then:
M > m.
Now also remember Newton's second law:
F = m*a
Force equals mass times acceleration.
And we know that both vehicles stop with the same stopping force.
Then the acceleration (deceleration actually) that experiences the car is:
a = F/m
While the acceleration that experiences the truck is:
a' = F/M
Because M is larger than m, we will have:
a' < a
Then the deceleration of the truck is smaller than the one of the car, which means that the car will come to a full stop faster than the truck (or the truck needs more time to stop)
While frying French fries, Wanda burned her hand. Burns are examples of a:
a. skin abnormality.
b. homeostatic balance.
c. skin infection.
d. homeostatic imbalance.
Answers
Answer:
d. homeostatic imbalance
Explanation:
Answer:
It's D
Explanation:
I'm pretty sure but if im wrong I'll give you the points back <3
Based on the displacement graph below, which divider is likely to experience the greatest negative acceleration?
A. The divider originally located at 1 unit.
B. The divider originally located at 4 units.
C. The divider originally located at 7 units.
D. The divider originally located at 10 units.
Answers
Answer:
The answer I'ts going to be A
Explanation:
because i just did it lol
Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patients sometimes wish to treat with acupuncture. To determine whether acupuncture relieves migraine pain, resea
Answers
Acupuncture can be considered as an effective method to reduce the frequency and severity of migraines.
Migraine is a debilitating condition that can affect a person's quality of life. Acupuncture is a traditional Chinese medical practice that has been used for centuries to treat various ailments, including migraines. Studies have shown that acupuncture can reduce the frequency and severity of migraines. The treatment involves inserting fine needles into specific points on the body to stimulate nerve endings and increase blood flow.
The needles are left in place for about 20-30 minutes, and patients may experience a tingling or dull ache during the procedure. Two key concepts in acupuncture are "qi" and "meridians." Qi is the energy that flows through the body, and meridians are the pathways through which qi flows. By stimulating certain points on the body, acupuncture can help balance the flow of qi and relieve pain. In conclusion, acupuncture can be a safe and effective alternative treatment for migraines.
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Find the volume of the following shape.
7 km
5 km
1.9 km
3 km
3 km
Round to the nearest hundredth.
Answers
The volume of the triangular shape is 10.35 km³.
In geometry, volume is the amount of space enclosed by a three-dimensional object. It is measured in cubic units, such as cubic meters or cubic centimeters. The volume of a regular object can be calculated using a formula, while the volume of an irregular object can be calculated by dividing it into smaller regular objects and adding up their volumes.
For example, the volume of a cube with a side length of 1 meter is 1 cubic meter. The volume of a sphere with a radius of 1 meter is 4/3π cubic meters. The volume of a cylinder with a radius of 1 meter and height of 2 meters is 2π cubic meters.
The formula gives the volume of a triangular shape:
V = 1/2 * b * h * t
where:
b is the base of the triangle
h is the height of the triangle
t is the thickness of the triangle
In this case, we have:
b = 7 km
h = 1.9 km
t = 3 km
So now, the volume of the triangular shape is:
V = 1/2 * 7 km * 1.9 km * 3 km = 10.35 km³
Therefore, the volume of the triangular shale is 10.35 km³.
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When you know both the speed and direction of an object’s motion, you know the
Answers
Answer:
When you know both the speed and direction of an object's motion, you know the velocity of the object.
When you know both the speed and direction of an object’s motion, you know the magnitude of the speed and direction in which it is moving.
What is Speed ?Speed is a rate of change of distance with respect to time. i.e. v =dx÷dt.
Speed can also be defined as distance over time
i.e. speed= distance ÷ time
it is denoted by v and its SI unit is m/s. it is a scalar quantity. i.e. it has only magnitude not direction. ( velocity is a vector quantity, it has both magnitude and direction. when we define velocity, we should know about its direction)
Speed shows how much distance can be traveled in unit time.
As speed is scalar quantity it has nothing to do with the direction. but when magnitude of speed is given and the direction as well, then we can say that a car or body is moving with this much speed at this direction(east, north, west, south).
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Nearly the entire world uses the metric system for their measurements. The US is 1 of 3 countries that does not use metric. Would you support changing school curriculum to teach the metric system as the primary measurement system in the US? Why or why not?
Answers
The answer is yes, I would suggest using the same metric system because in whole world the metric system is same then it will be easy to solve the problems.
What is metric system?The progressions metric system, which had been implemented in France in the 1790s, was the measuring system that was replaced by the metric system. The International System of Units (SI), which was created in the middle of the 20th century with the help of an international standards body, was the historical culmination of the evolution of these systems. The term "metrication" refers to the adoption of the metric system.
The acknowledgement of various principles is the result of the historical development of metric systems. One base unit of measurement can be used to express each of nature's essential dimensions.
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