Answer:
A. person in roller coaster
Explanation:
HELP!
How high above the ground would a 500 kg roller coaster car be if it had 61 740 J of
gravitational potential energy?
Answer:
The solved problem is in the photo. Hope it helps.
Sound is what type of wave (Check all that applies)
Transverse
Longitudinal
Electromagnetic
Mechanical
Answer:
It's a longitudinal and mechanical wave. The the sound is transported parallel to the direction that the sound wave moves and require a medium to travel.
Explanation:
Answer:
a ,b ,e sorry if I'm wrong
Explanation:
have a great day peep's :]
An electric circuit through which no current flows is known as?
What types of properties does light have
Answer:
In isotropic substances, there are only two optical properties that can be determined. One of these is the absorption color, as discussed above. The other is the refractive index. Tables of refractive indices for isotropic minerals, list only the refractive index for one wavelength of light.
Explanation:
what type of meter would be connected on both sides of the resistor in a circuit
the answer IS NOT "An ammeter, which measures current"
A ball is sitting at rest on the floor. What will happen if a balanced force is applied to the ball? *
(1 Point)
It will roll in the direction of the weakest force.
It will roll away from the force.
It will remain at rest.
is the process of introducing a non blood fluid into the blood
The process described involves the transfusion of non-blood fluids into the blood, such as saline solution or blood substitutes, particularly in emergency situations where typical blood transfusions are not feasible. The success of such interventions relies on a thorough understanding of fluid dynamics and ongoing medical research to improve safety and effectiveness. Xenotransplantation is also notable for its potential to address organ transplant shortages.
Explanation:Introduction of Non-Blood Fluids into the Bloodstream
The process of introducing a non-blood fluid into the blood is known as transfusion or infusion when it involves substances such as saline solution, nutrition, medications, or blood substitutes. Historically, this was accomplished through techniques like those developed by Blundell using gravity or syringe-based systems to introduce donor blood into recipients. In modern medicine, the intravenous administration of a saline solution is common in emergency situations, such as multiple-vehicle accidents or military engagements, where normal blood plasma needs to be replaced quickly to prevent shock.
Research in the field of medicine continuously seeks to improve the effectiveness and safety of blood transfusions and substitutes. For example, during acute hemorrhage when typical blood transfusions are not an option, medical personnel might use artificial blood products that use hemoglobin-based or perfluorocarbon-based oxygen carriers to mimic the oxygen-carrying function of red blood cells (RBCs). This is important in environments where there's a concern for blood type incompatibility or a lack of available blood supplies.
In the broader scope of fluid dynamics in biology, it's essential to understand how these processes like osmosis, dialysis, and diffusion affect the circulation of blood and the cleansing of blood by the kidneys, as well as in medical applications such as kidney dialysis machines. Furthermore, xenotransplantation represents an area of medical research that explores the infusion of human patients with cells or tissues that have come into contact with animal cells, presenting a potential frontier for addressing organ transplant shortages.
The Doppler effect describes the change in the observed __________ of a wave when there is relative motion between the wave source and the observer. *
4 points
Amplitude
Interference
Wavelength
Frequency
Answer:
Frequency
Explanation:
The Doppler effect describes the change in the observed Frequency of a wave when there is relative motion between the wave source and the observer.
Explanation:
• Doppler described, How the color of the Starlight changed with the Movement of the star.
• Waves comes in variety of forms.
There are two common factors that used to describe all types of waves,
1. Wavelength, 2. Frequency.
• For waves that carries light, the frequency of it determines the color of the light it carries.
In relate the the first and last point of the above contexts,
We conclude that the Doppler effect describes the change in the observed frequency of a wave when there is relative motion between the wave source and the observer
Problem
Which of the following statements is true of a body that accelerates uniformly? Explain your
answer.
a. Its rate of change of position with time remains constant.
b. Its position changes by the same amount in equal time intervals.
c. Its velocity increases by increasing amounts in equal time intervals.
d. Its rate of change of velocity with time remains constant.
Explanation:
The acceleration of a body is defined as the rate of change of velocity per unit time. Its mathematical form is given by :
[tex]a=\dfrac{v-u}{t}[/tex]
Here,
u is initial speed of a body
v is final speed
t is time taken
Uniform acceleration means that the velocity of an object changes by an equal amount in every equal time period. Hence, the correct option is (c) " Its velocity increases by increasing amounts in equal time intervals".
Jamie has a mass of 35kg what is her weight on earth in newtons
How to atoms behave in non-magnetic items?
Answer:
By altering the quantum interactions of the electrons in the atoms of a metal's atoms, scientists from the University of Leeds have generated magnetism in metals that aren’t normally magnetic.
Explanation:
12456787980-1234567890
Answer:11222220090
Explanation:
Answer:
11222220090
Explanation:
Cross country skier moves 32 m west word than 54 m east word and finally 68 m westward what is the distance moved?
Answer:
154m
Explanation:
Distance moved
= 32m + 54m + 68m
= 154m
what is one benefit of lifelong physical activity?
Final answer:
Lifelong physical activity provides multiple health benefits, including cardiovascular and muscular fitness, improved bone density, cognitive function, and weight management, which contribute to a better quality of life and extended life expectancy.
Explanation:
One significant benefit of lifelong physical activity is the improvement of overall health, which manifests in multiple dimensions. Engaging in physical activity from a young age helps in maintaining cardiovascular and muscular fitness, improving bone density and strength, enhancing cognitive function, and aiding in weight management. Moreover, regular exercise contributes to improved quality of life and can extend life expectancy.
For instance, older adults can experience a lower risk of falls and related injuries, while individuals of all ages can enjoy benefits such as reduced risk factors for cardiovascular disease, hypertension, obesity, and certain types of cancer. Additionally, physical activity plays a protective role against mental health issues like depression, due to its potential to increase the synthesis of natural euphoriants in the brain. Crucially, even those with chronic conditions can find physical activity more beneficial than harmful, emphasizing the universal importance of an active lifestyle.
Which of the following statements describes an actual orbit?
O
A. The Moon is a satellite of Earth.
O
B. The Sun is a satellite of Earth.
O
C. Earth is a satellite of the planet Jupiter.
O
D. The planet Jupiter is a satellite of Earth.
The Moon is a satellite of Earth. This statement describes an actual orbit. Hence, option (A) is correct.
What is orbit?An orbit is the curved path taken by an object in celestial mechanics, such as the path taken by a planet around a star, a natural satellite around a planet, or an artificial satellite around an object or location in space, such as a planet, moon, asteroid, or Lagrange point.
Typically, the term "orbit" refers to a trajectory that repeats itself on a regular basis, though it can also apply to a non-repeating trajectory. According to Kepler's rules of planetary motion, planets and satellites roughly follow elliptic orbits, with the center of mass orbiting at a focal point of the ellipse.
Hence, the Moon is a satellite of Earth. This statement describes an actual orbit.
Learn more about orbital here:
https://brainly.com/question/1482725
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Is an 80 dB sound twice as loud as a 40 dB sound? Explain.
Answer:
Yes.
Explanation:
As decibel is a universal unit, 40Db*2=80Db.
A 600 kg car is at rest, and then accelerates to 5 m/s.
What is its original kinetic energy?
What is its final kinetic energy?
How much work was used?
Answer:
0
7500J
7500J
Explanation:
Given parameters:
Mass of car = 600kg
Velocity = 5m/s
Unknown:
Original kinetic energy = ?
Final kinetic energy = ?
Work used = ?
Solution:
The kinetic energy of a body is the energy due to the motion of a body.
It can be solve mathematically using expression below;
K.E = [tex]\frac{1}{2}[/tex] m v²
where m is mass
v is velocity
original kinetic energy;
The car started at rest and v = 0, therefore K.E = 0
Final kinetic energy;
K.E = [tex]\frac{1}{2}[/tex] x 600 x 5² = 7500J
Work done:
Work done = Final K.E - Initial K.E = 7500 - 0 = 7500J
Answer:
0 ; 7500; 7500
Explanation:
Its correct I just completed it.
The highest occupiable floor of any building is in the Sears Tower in Chicago. The elevators of the central tower of the building lift passengers 436.0 m above street level. If a continuous forces of 22310 N is exerted on one of these elevator cars as it travels from the ground to the top floor, how much work is done on the elevator car by the elevator's lifting mechanism?
Answer:
9727160J
Explanation:
Given parameters:
Height of elevator rise = 436m
Force exerted = 22310N
Unknown:
Work done by the elevator lifting mechanism = ?
Solution:
The work done by a body is the force applied to move a body in a specific direction;
Work done = force x distance moved
In this case, the force and distance moved is provided already;
Work done = 22310 x 436 = 9727160J
The work done on the elevator car by the elevator's lifting mechanism is calculated using the work formula which is the product of the exerted force and the distance travelled, resulting in a total work of 9,731,160 joules.
Explanation:The question requires us to calculate the work done on an elevator car by the elevator's lifting mechanism. To find this out, we use the work formula:
Work (W) = Force (F) × Distance (d)
Given:
Force exerted on the elevator car, F = 22310 N Distance the elevator travels, d = 436.0 m
To calculate the work done, we multiply the force by the distance:
W = F × d
W = 22310 N × 436.0 m
W = 9,731,160 J
The work done by the elevator's lifting mechanism is 9,731,160 joules (J).
Why is lightning visible before thunder is heard?
A
Sound cannot reflect off surfaces as easily as light.
B
Sound travels slower than light can travel.
C
Sound is not processed by the brain as fast as light.
D
Sound needs a medium to travel through.
Answer:
B
Explanation:
The volume of a fixed mass of gas is directly proportional to its
temperature if the pressure is kept constant.*
a. Boyle's law
b. Charles's law
c. gay-lucssac's law
Answer: Charles's law
Explanation:
Charles's law is one of the gas laws, and it explains the effect of temperature changes on the volume of a given mass of gas at a constant pressure. Usually, the volume of a gas decreases as the temperature decreases and increases as the temperature also increases.
Mathematically, Charles's law can be expressed as:
V ∝ T
V = kT or (V/T) = k
where v is volume, T is temperature in Kelvin, and a k is a constant.
What happens when two waves pass through each other
The interference of the two waves causes its medium to take on a shape that results from the effect of the two individual waves upon the particles of the medium.
Could someone please fill out this document and give it back to me. I'm willing to give 100 points but all answers need to be correct and show really good working out. I really need to pass this assessment or else I will fail physics.
Hi friend! I'm really sorry, but I was only able to complete the first 2 pages. The whole thing was too big, and I have a curfew (bedtime). Also, I'm only in 9th grade, and I am pretty smart for my age, so I tried to figure everything out, but it was still too confusing for me. Honestly, if you just search the formulas/equations for work, power, volts, watts, joules, etc, it will be easier for you. I have included the doc with my answers below, but the rest of it is blank. Also, I recommend double checking my answers, just to make sure that they are not wrong.
I hope this helps!
- sincerelynini
Which pair of concepts are closely related?
O A. radiation and inertia
B. electric and magnetic forces
C. friction and gravity
D. entropy and momentum
Answer:
I believe it would be C. friction and gravity
Explanation:
They both deal with pulling/pushing objects.
Which interaction can result in a wave that has a larger or a smaller amplitude than the original waves?
Answer:
Physical Science - Chapter 20 - The Energy of Waves
A B
interference a wave interaction that occurs when two or more waves overlap
constructive interference interference that results in a wave that has a greater amplitude than that of the individual wave
diffraction the bending of waves around a barrier or through an openin
Explanation:
a. If you set a cannonball to 1500 m/s, what happens? Explain why you think it moves this way.
Answer:
I beleive it would shoot very far up into the sky
Explanation:
Answer:It slows down and eventually gravity pulls it to ground and it stops
Explanation:
Air resistance slows it down
Which process requires the addition of energy to water?
Water must absorb energy in order to melt, evaporate, or get warmer.
Question 4 of 10
2 Points
Which of the following is a cost of urban development?
O
A. Habitat fragmentation
O B. Entertainment
O C. Employment
O
D. Cultural centers
What is it
Habitat fragmentation is a cost of urban development.
Option: A
Explanation:
Though from the view point or perspective of up gradation and development urban development is much needed but in cost of habitat fragmentation which feels very bitter. As habitat fragmentation leads to the loss of habitat, disruption of ecological cycle and environmental equilibrium.
Actually in the name of urban development we the human use our bread giver environment in a wrong way which causes natural disasters in long run. Animals become endangered , vulnerable and extinct with passage of time. Because they forced to enter into human settlements.
Answer:
A
Explanation:
Which of these is a substance or compound that kills or inhibits bacteria?
A.
an antibiotic
B.
a germ
C.
a microorganism
D.
a vaccine
Answer:
an antibiotic
Explanation:
Final answer:
An A. antibiotic is a substance or compound that kills or inhibits bacteria, and it can be a natural product of microorganisms or synthetically produced in a laboratory.
Explanation:
The substance or compound that kills or inhibits bacteria is known as an antibiotic. Antibiotics are either metabolic products produced by one microorganism to inhibit or kill other microorganisms or can be synthesized chemically in a laboratory. The effectiveness of an antibiotic may vary; some have a broad spectrum of activity against many different kinds of bacteria, while others have a narrow spectrum, targeting specific types of bacteria.
An antibiotic operates by interfering with crucial biological processes of bacteria, often by inhibiting enzymes necessary for their growth, leading to their destruction or prevention of their replication.
4. Solid ‘X’ turns into a liquid at 80 0C and into a gas at 140 0C. Describe the changes in the
particles of X when it is heated from
a. 70 0C to 85 0C
Answer:
Explanation:
The melting point of the solid is 80°C
Vapor point of the liquid is 140°C
What happens to particles of X when heated from 70°C to 85°C?
Firstly, there would be a phase change from solid to liquid. Below the melting point, a substance will exist as a solid. With increase in thermal energy inputted by heat, as the temperature climbs above the melting point, it changes to the liquid. When the solid begins to heat up, the particles of X starts vibrating about their fixed point. At they melting point, they break lose and flow to form a liquid. The particles will have more kinetic energy.Which one of the following is the pigment found in redheads?
a) Keratin
b) Melanin
c) Pheomelanin
d) Cortex
Pheomelanin is the pigment found in redheads. The correct option is C.
Pheomelanin is the pigment found in redheads. It is a cysteine-containing red polymer responsible for red hair and other pigmentation.