Answers
Answer:
A
Explanation:
water released then sunlight splits it into oxygen and hydrogen ions
Related Questions
DRAW the lines of convergence and area of convergence in this picture
PLEASE HELPPP
Answers
Draw lines from each point of the area of convergence to the point of convergence and extend them until they intersect.
How to draw the lines and area of convergence?To draw the lines of convergence and the area of convergence, first draw the line that divides the area into two parts. Then draw the lines that connect the points where the opposing forces meet. Finally, draw a circle around the area of convergence, with the convergence lines drawn from its center to the edges.
Convergence lines:
1. The line that divides the area of convergence into two parts.
2. The line that connects the points where opposing forces meet.
Area of convergence:
The area of convergence is the area where the opposing forces meet and interact. This area can be visualized as a circle, with the convergence lines drawn from its center to the edges. The area of convergence is often characterized by a high level of activity, with the opposing forces keeping each other in check.
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The drawing shows four situations in which two very long wires are carrying the samecurrent, although the direction of the currents may be different. The point P in the drawings is equidistant from each wire. Which one (or more) of these situations gives rise to a zero net magnetic field at P?
Answers
Situation (a) results in a zero net magnetic field at point P. Option 1 is correct.
In situation (a), the two wires are carrying currents in opposite directions. At point P, the magnetic field due to one wire will be in the opposite direction of the magnetic field due to the other wire. Since the two fields are equal in magnitude and opposite in direction, they cancel each other out, resulting in a net magnetic field of zero at point P.
In situations (b), (c), and (d), the currents are either in the same direction or the wires are at different distances from point P. In these situations, the magnetic fields due to the wires do not cancel each other out at point P, resulting in a nonzero net magnetic field. Therefore, only situation (a) gives rise to a zero net magnetic field at point P. Option 1 is correct.
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Two people stand a distance L apart along an east-west road. They both clap their hands at precisely noon in the ground frame. You are driving eastward down this road at speed 4c/5. You notice that you encounter the western person at the same instant (as measured in your frame) that the eastern person claps. Where are you along the road at the instant (as measured in your frame) that the western person claps?
Answers
Answer:
Location along the road = 9/15 L
Explanation:
speed eastward = 4c/5
distance between people standing = L
Location along the road at the instant the western person claps =
= 5/3 L - 16/5 L = 9/ 15 L
attached below is a detailed solution
What kind of telescope uses only lenses?
Answers
Answer: refracting telescope
Explanation: Refracting telescopes use a convex lens to gather light and focus it on an eyepiece, which magnifies the image.
Answer:
refracting
Explanation:
edge 2023 trust
Two stars of masses M and 6M are separated by a distance D. Determine the distance (measured from M) to a point at which the net gravitational force on a third mass would be zero.
Answers
Answer:
0.29D
Explanation:
Given that
F = G M m / r2
F = GM(6m) / (D-r)2
G Mm/r2 = GM(6m) / (D-r)2
1/r2 = 6 / (D-r)2
r = D / (Ö6 + 1)
r = 0.29 D
See diagram in attached file
Four different insect mouthparts are shown which is best adapted for chewing leaves YXWZ
Answers
Answer:
i think its W, in the picture it looks like a cricket
Explanation:
i got it right on edg 2020
Answer:
w
Explanation:
edg 2921
Which of the following involves reflected light waves
Answers
What is energy?
Question 1 options:
force × distance
force
chemical change
the ability to do work
Answers
Answer:
The ability to do work
Explanation:
Energy can be defined as the ability to do work. We apply energy in basically everything we do in life, energy is needed to walk or move from one position to another, it is required to eat and do other basic things of life. The body system converts the food that is being consumed into energy, this energy can be switched from one form to another.
There are various forms of energy which include solar energy , wind energy, electrical energy, mechanical energy, kinetic energy, potential energy etc. This forms of energy can be converted from one form to anothe but cannot be destroyed.
Answer:
ability to work
Explanation:
Which of the the following quantities has the same unit as kilowatt - hour?
(a) Force × time
(b) Force × distance
(c) Force × acceleration
(d) Force × velocity
Answers
Answer:
I think (d) is your answer...
Force × velocity is the quantities has the same unit as kilowatt - hour. hence option D is correct.
What is Force ?A force in physics is an effect that changes the velocity of a mass-moving object, causing it to accelerate from rest, for example. It is a vector quantity since it can be a push or a pull and always has magnitude and direction. It is denoted by the letter F (formerly P) and is measured in newtons (N), the SI unit of force.
The net force exerted on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation. According to this equation, an object's acceleration is precisely proportional to the net force applied on it if its mass remains constant.
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Two horizontal forces are acting on a box. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +5.9 N and the mass of the box is 3.6 kg. Find the magnitude and direction of when the acceleration of the box is +7.1 m/s^2.
Answers
Answer:
sorry I don't know I am only in 7th grade
Which of the following is true about mutations in somatic cells?
A.) They get mutated easily and often, once every minute.
B.) They affect the reproductive cells.
C.) They don't affect offspring.
Answers
Answer:
B.) They affect the reproductive cells.
A hiker with a skin surface area of 1.3 m² is protected from hypothermia (the cold) by a close-fitting sleeping bag 30 mm thick. If her skin temperature is 34°C and she can safely lose 85 W of heat by conduction through the sleeping bag, what is the lowest outside temperature for which the sleeping bag provides adequate protection? Ignore heat losses due to convection or radiation. Coefficient of thermal conductivity of the sleeping bag = 0.019 Wm¹¹°C-¹
Answers
Answer: The lowest outside temperature for which the sleeping bag provides adequate protection is approximately 89.61°C below the hiker's skin temperature of 34°C.
Explanation:
To find the lowest outside temperature for which the sleeping bag provides adequate protection, we need to determine the rate of heat loss through conduction and compare it to the heat loss the hiker can safely tolerate.
The rate of heat loss through conduction can be calculated using the formula:
Q = (k * A * ΔT) / d
Where:
Q is the rate of heat transfer (in Watts)
k is the coefficient of thermal conductivity (0.019 Wm¹¹°C-¹ in this case)
A is the surface area (1.3 m² in this case)
ΔT is the temperature difference (in this case, the difference between the skin temperature and the outside temperature)
d is the thickness of the sleeping bag (30 mm, which needs to be converted to meters by dividing by 1000)
Let's plug in the values:
Q = (0.019 * 1.3 * ΔT) / (30 / 1000)
The hiker can safely lose 85 W of heat, so we can set up the equation:
85 = (0.019 * 1.3 * ΔT) / (30 / 1000)
To solve for ΔT, we can rearrange the equation:
ΔT = (85 * (30 / 1000)) / (0.019 * 1.3)
ΔT ≈ 89.61°C
should scientists be allowed to do anything they can
Answers
Answer:
I think yes for some things like for example if they are trying to make a formula or a vaccine that is important or some type if thing they should be allowed because they try their best and what if someone or their boss tells them not to put something in it and they dont put it but what if that one ingridient was going to complete wha they needed
Answer:
NoExplanation:
If scientist were given the power to do what they wanted to do almost everyone would be lab rats
We discover new things every day which we need to test to see how it helps humans. Sometimes humans are needed for the test .
For example the Russian sleep experiment was a very terrible incident because humans were used.
Some scientist are ma* (forgive my use of foul words) and will go to any length just to make and prove their discoveries
I hope the above points have given you the reason why scientist shouldn't ne given the power to do anything they can .
Thank you :)
Bye <3
Laasya is lifting a table and moving it to another room to expand the space in her room. What mode of
strength-training
is Laasya performing?
Answers
Laasya is performing resistance training by lifting a table and moving it to another room to expand the space in her room. The correct option to this question is D.
Strength training By putting your muscles up against resistance, resistance training builds muscle strength. Free weights, weight machines, resistance bands, and your own body weight are all used in various types of resistance training. To get the most out of their training, beginners should go two or three times per week.Resistance training is founded on the idea that, when called upon, the body's muscles will struggle to overcome a resisting force. Resistance exercise has both advantages and disadvantages.Resistance exercises include planks, sit-ups, squats, push-ups, leg raises, and leg extensions. You and a small amount of room are all that are needed for these strength training exercises.For more information on resistance training kindly visit to
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Complete question : Laasya is lifting a table and moving it to another room to expand the space in her room. What mode of strength-training is Laasya performing?
a. Endurance
b. Isometric
c. Isotonic
d. Resistance
two objects, t and b, have identical size and shape and have uniform density. they are carefully placed in a container filled with a liquid. both objects float in equilibrium. less of object t is submerged than of object b. which of the following statements is true
Answers
The correct statement about the given two object when placed in a container is b)Object B has a greater density than object T. So, correct option is b.
At the point when an item stay balance while lowered, its gravity should be equivalent to the lightness force, which is equivalent to the fluid weight dislodged by the lowered volume:
\(V_s\)ρ\(_l\)g=mg=Vρ₀g
=>\(V_s\)ρ\(_l\)=Vρ₀
=>ρ₀=(\(V_s\)ρ\(_l\))/V
where ρ₀,ρ\(_l\) are densities of the object and liquid, separately. are the volume lowered and the item volume, separately.
In the event that object B is completely lowered, the thickness of article B is equivalent to the fluid thickness (on the grounds that ).
With respect to protest T as it's just to some extent lowered, the mass of the fluid dislodged is same as mass of article. And keeping in mind that the volume uprooted is just a piece of the entire item volume (), this implies that the fluid thickness is more noteworthy than object T's thickness.
Hence, correct option is b.
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(Complete question) is:
Two objects, T and B, have identical size and shape and have uniform density. They are carefully placed in a container filled with a liquid. Both objects float in equilibrium. Less of object T is submerged than of object B, which floats, fully submerged, closer to the bottom of the container. Which of the following statements is true?
a. Object T has a greater density than object B.
b. Object B has a greater density than object T.
c. Both objects have the same density
To understand thermal linear expansion in solid materials. Most materials expand when their temperatures increase. Such thermal expansion, which is explained by the increase in the average distance between the constituent molecules, plays an important role in engineering. In fact, as the temperature increases or decreases, the changes in the dimensions of various parts of bridges, machines, etc., may be significant enough to cause trouble if not taken into account. That is why power lines are always sagging and parts of metal bridges fit loosely together, allowing for some movement. It turns out that for relatively small changes in temperature, the linear dimensions change in direct proportion to the temperature.
For instance, if a rod has length L0 at a certain temperature T0 and length L at a higher temperature T, then the change in length of the rod is proportional to the change in temperature and to the initial length of the rod: L - L0 = αL0(T - T0),
or
ΔL = αL0ΔT.
Here, α is a constant called the coefficient of linear expansion; its value depends on the material. A large value of α means that the material expands substantially as the temperature increases; smaller values of α indicate that the material tends to retain its dimensions. For instance, quartz does not expand much; aluminum expands a lot. The value of α for aluminum is about 60 times that of quartz!
Questions:
A) Compared to its length in the spring, by what amount ΔLwinter does the length of the bridge decrease during the Teharian winter when the temperature hovers around -150°C?
B) Compared to its length in the spring, by what amount ΔLsummer does the length of the bridge increase during the Teharian summer when the temperature hovers around 700°C?
Answers
Answer:
Check the explanation
Explanation:
Kindly check the attached image below to see the step by step explanation to the question above.
"Blue notes" are_____
the bending of pitches
high pitched notes
never played
Answers
Amanda uses a wheelbarrow to lift a load of bricks. The bricks weigh 620 N, which is more than Amanda could normally carry. However, with the wheelbarrow, Amanda can lift the bricks with as little as 120 N. What is the mechanical advantage of the wheelbarrow?
Answers
The mechanical benefit of the barrow is the result of the mechanical benefits of the lever (2), the wheel, and the axle (2). The wheelbarrow thus has a tactical energy of 4.
What is class 8 mechanical advantage?The force amplified by utilising a tool, mechanical device, or machine system is known as mechanical advantage. In order to achieve the appropriate output force amplification, the device simply trades on forces against movement while maintaining the input power.
What is the wheelbarrow's mechanism?The axle and wheel as well as the lever are two straightforward machines that contribute to making the load smaller and simpler to transfer. You are actually using force on the lever when you lift the wheelbarrow by the handle. The wheel will begin to move when you exert tension on the lever.
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Two boxes with masses 20 kg and 5 kg are attached to an ideal rope and pulley system, as shown. The coefficient of kinetic friction between the 20 kg box and the surface is 0.14.
What is the magnitude of the acceleration of the 20 kg box as it moves to the right?
Answers
Answer:
22/25 m/s^
Explanation:
The magnitude of the acceleration of the 20 kg box as it moves to the right is 7.84 m/s².
How to calculate the acceleration?In this system, the force of gravity acts on both boxes, but the tension in the rope is the same on both sides of the pulley, so it cancels out. The frictional force acts only on the 20 kg box, opposing its motion to the right.
To find the acceleration of the 20 kg box, we need to use Newton's second law of motion, which states that the net force acting on an object is equal to its mass times its acceleration:
Net force = mass x acceleration
The net force on the 20 kg box is the force of gravity pulling it down minus the force of friction opposing its motion to the right:
net force = (20 kg)(9.8 m/s²) - (0.14)(20 kg)(9.8 m/s²) = 156.8 N
The net force on the 5 kg box is the force of gravity pulling it down plus the tension in the rope pulling it up:
Net force = (5 kg)(9.8 m/s²) + T
Since the tension is the same on both sides of the pulley, we can set these two equations equal to each other and solve for the tension:
T = (20 kg)(9.8 m/s²) - (0.14)(20 kg)(9.8 m/s²) - (5 kg)(9.8 m/s²) = 93.68 N
Now we can use the net force on the 20 kg box to find its acceleration:
Net force = (20 kg) x acceleration
156.8 N = (20 kg) x acceleration
Acceleration = 7.84 m/s²
Therefore, the magnitude of the acceleration of the 20 kg box as it moves to the right is 7.84 m/s².
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raju is standing at a distance of 1.5 m from a plane mirror find the distance between raju and his image between raju and his image
Answers
Answer:
3.0m
Explanation:
Because the image distance(v) =object distance(u)
v+u=1.5+1.5=3.0m
These ethical theories could endorse something like genocide under the right conditions: (Choose as many as you think are correct) Utilitarianism Cultural Relativism Egoism Natural Rights Theory Kantian Deontology
Answers
According to the utilitarian ethical theory, morality is decided by emphasising results.
This kind of consequentialism exists here. According to utilitarianism, a decision should be made if it would result in the greatest amount of benefit for the largest number of people. The utilitarian perspective holds that you should select the ice cream flavour that would make you feel the happiest if you are making a decision for yourself.
A variation of consequentialism known as utilitarianism holds that actions' results are the only criteria for what is right and bad. Utilitarianism takes into account the interests of every sentient being equally, unlike other consequentialist ideologies like egoism and altruism.
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The block A and attached rod have a combined mass of 50 kg and are confined to move along the guide under the action of the 796-N applied force. The uniform horizontal rod has a mass of 15 kg and is welded to the block at B. Friction in the guide is negligible.
Required:
Compute the bending moment M exerted by the weld on the rod at B. The bending moment is positive if counterclockwise, negative if clockwise.
Answers
Answer:
The bending moment is 459.16 N.m
Explanation:
From the given information;
Let's assume that the angle is 66°
Then, the free body diagram is draw and attached in the file below.
Now, the calculation of the acceleration from the first part of the free body diagram is:
\(\sum F_x = ma_x \\ \\ 796 - 50(9.81) sin 66=50a \\ \\ 796 - 448.094 = 50 a \\ \\ a = \dfrac{347.906}{50} \\ \\ a = 6.96 \ m/s^2\)
Bending moment M:
From the second part of the diagram:
\(\sum M_B = mad \\ \\ M - (15 \times 9.81) (1.5) = (25 \times 6.96)(1.5 sin 66) \\ \\ M - 220.725 = 238.435 \\ \\ M = 238.435 + 220.725 \\ \\ \mathbf{M = 459.16 \ N.m}\)
How might writing an online journal be different than writing in a paper one?
A. It's ok to talk badly about people in an
online journal.
O B. It's easier to communicate online.
O C. You should expect less privacy.
O D. You should expect more privacy.
Answers
Writing in an online journal is different from writing in a paper one in the following way: it is easier to communicate online (option B).
What is a journal?A journal is a newspaper or magazine dealing with a particular subject.
A journal is an efficient medium to communicate the findings or results of an investigation to the public.
However, a journal can be virtual (online) or paper (hard copy). In this 21st century, it is easier to communicate to the masses online because more audience will be captured.
Therefore, writing in an online journal is different from writing in a paper one in the following way: it is easier to communicate online.
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a woman walks south at a speed of 2.0mph for 60 minutes. She then turns around and walks north at a distance of 3000m in 25 minutes. What is the woman's average speed during her entire motion?
Answers
When a woman walks south at a speed of 2.0mph for 60 minutes. She then turns around and walks north at a distance of 3000m in 25 minutes. then the woman's average speed during her entire motion would be 73.15 meters /minute.
What is speed?The total distance covered by any object per unit of time is known as speed.
the mathematical expression for speed is given by
speed = total; distance /total time
As given in the problem a woman walks south at a speed of 2.0mph for 60 minutes
60 min = 1 hour
1 mile = 1.60934 km
The distance covered by her southwards = speed ×time
=2 mph × 60 minutes
= 3.218 km
She then turns around and walks north at a distance of 3000m in 25 minutes
The distance covered northward is 3000m
speed = total distance /total time
=(3218 +3000) /(60+25)
=73.15 meters /minutes
Thus, The average speed of the woman would be 73.15 meters /minute.
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Given the functions f(x)=(1/x-3)+1 and g(x) = (1/1+4)+3
Which statement describes the transformation of the graph of function f onto the graph of function g?
O The graph shifts 2 units right and 7 units down.
O The graph shifts 7 units left and 2 units up.
O
e graph shifts 7 units right and 2 units down.
O The graph shifts 2 units left and 7 units up.
Answers
The statement that describes the transformation of the graph of function f onto the graph of function g is: The graph shifts 2 units right and 7 units down.
To determine the transformation of the graph of function f onto the graph of function g, we compare the two functions f(x) and g(x) and observe the changes in the equations.
The function f(x) = (1/x - 3) + 1 represents a reciprocal function that is shifted vertically 1 unit up and horizontally 3 units to the right. The reciprocal function is reflected about the line y = x.
The function g(x) = (1/(1 + 4)) + 3 simplifies to g(x) = 4 + 3 = 7, which is a constant function representing a horizontal line at y = 7.
By comparing the equations, we can see that the transformation from f(x) to g(x) involves the following changes:
The term 1/x in f(x) is replaced by the constant 1/(1 + 4) in g(x), resulting in a vertical shift of 7 units up.
The term -3 in f(x) is replaced by 3 in g(x), resulting in a vertical shift of 3 units up.
The +1 in f(x) is replaced by +3 in g(x), resulting in an additional vertical shift of 2 units up.
Therefore, the overall transformation is a shift of 2 units to the right and 7 units down.
Hence, the correct statement is: The graph shifts 2 units right and 7 units down.
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A disk of radius 25 cm spinning at a rate of 30 rpm slows to a stop over 3 seconds. What is the angular acceleration?
B. How many radians did the disk turn while stopping ?
C. how many revolutions?
Answers
Answer:
A. α = - 1.047 rad/s²
B. θ = 14.1 rad
C. θ = 2.24 rev
Explanation:
A.
We can use the first equation of motion to find the acceleration:
\(\omega_f = \omega_i + \alpha t\\\)
where,
ωf = final angular speed = 0 rad/s
ωi = initial angular speed = (30 rpm)(2π rad/1 rev)(1 min/60 s) = 3.14 rad/s
t = time = 3 s
α = angular acceleration = ?
Therefore,
\(0\ rad/s = 3.14\ rad/s + \alpha (3\ s)\\\)
α = - 1.047 rad/s²
B.
We can use the second equation of motion to find the angular distance:
\(\theta = \omega_i t + \frac{1}{2}\alpha t^2\\\theta = (3.14\ rad/s)(3\ s) + \frac{1}{2}(1.04\ rad/s^2)(3\ s)^2\\\)
θ = 14.1 rad
C.
θ = (14.1 rad)(1 rev/2π rad)
θ = 2.24 rev
What is sound waves
Answers
Sound waves are a type of mechanical wave that propagate through a medium, typically air but also other materials such as water or solids.
Characteristics of sound wavesFrequency: the frequency of a sound wave refers to the number of cycles or vibrations it completes per second and is measured in Hertz (Hz).
Amplitude: the amplitude of a sound wave refers to the maximum displacement or intensity of the wave from its equilibrium position. It represents the loudness or volume of the sound, with larger amplitudes corresponding to louder sounds and smaller amplitudes corresponding to softer sounds.
Wavelength: the wavelength of a sound wave is the distance between two consecutive points in the wave that are in phase, such as from one peak to the next or one trough to the next. It is inversely related to the frequency of the wave.
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find the average velocity if the take-off velocity of an airplane on a run away is 300 km/hr with an acceleration of 1 m/s^2
Answers
Given:
The takeoff velocity of the plane, v=300 km/hr
The acceleration of the plane, a=1 m/s²
To find:
The average velocity of the plane.
Explanation:
The initial velocity of the plane is u=0 m/s
The take-off velocity of the plane in m/s is
\(\begin{gathered} v=300\times\frac{1000}{3600} \\ =83.33\text{ m/s} \end{gathered}\)The average velocity of an object having a constant acceleration is given by the sum of the initial and final velocity divided by two.
Thus the average velocity of the plane until it takes off is given by,
\(\begin{gathered} v_{av}=\frac{u+v}{2} \\ =\frac{0+83.33}{2} \\ =41.7\text{ m/s} \end{gathered}\)From the equation of motion,
\(v^2-u^2=2ad\)Where d is the takeoff distance.
On substituting the known values,
\(\begin{gathered} 83.33^2-0=2\times1\times d \\ \Rightarrow d=\frac{83.33^2}{2\times1} \\ =3471.9\text{ m} \end{gathered}\)Final answer:
Thus the average velocity of the plane is 41.7 m/s
Thus the takeoff distance is 3471.9 m
A planet of mass m moves around the Sun of mass M in an elliptical orbit. The maximum and minimum distance of the planet from the Sun are r1 and r2, respectively. Find the relation between the time period of the planet in terms of r1 and r2.
Answers
Answer:
the relation between the time period of the planet is
T = 2π √[( r1 + r2 )³ / 8GM ]
Explanation:
Given the data i the question;
mass of sun = M
minimum and maximum distance = r1 and r2 respectively
Now, using Kepler's third law,
" the square of period T of any planet is proportional to the cube of average distance "
T² ∝ R³
average distance a = ( r1 + r2 ) / 2
we know that
T² = 4π²a³ / GM
T² = 4π² [( ( r1 + r2 ) / 2 )³ / GM ]
T² = 4π² [( ( r1 + r2 )³ / 8 ) / GM ]
T² = 4π² [( r1 + r2 )³ / 8GM ]
T = √[ 4π² [( r1 + r2 )³ / 8GM ] ]
T = 2π √[( r1 + r2 )³ / 8GM ]
Therefore, the relation between the time period of the planet is
T = 2π √[( r1 + r2 )³ / 8GM ]
compare the times of all sunsets during the same period what do you observe
Answers
Answer:
Theres no given?
Explanation:
Well, whatever.
I observed the shift of their sunset time.
Examples like:
January to June = their sunset time increased while
July to December = their sunset time decreased