Answer:
I'm not sure, but "Add coefficient 2 to O2...". You didn't really write out the equation properly.
A tugboat is pushing a barge in to a harbor.The barge is exerting a force of 3000 N against the tugboat.which force would most likely allow the tugboat to move the barge into the harbor
Answer: The Answer is -4500 N
A book with a mass of 1.2 kg sits on a bookshelf. If it has gravitational potential energy of 50 j, how high is the shelf ? The acceleration of gravity is 9.8 m/s 2
Answer:
B
Explanation:
The shelf will be b) 4.3 m high
What is Gravitational potential energy ?
Gravitational potential energy is the energy possessed or acquired by an object due to a change in its position when it is present in a gravitational field.
given
mass = 1.2 kg
gravitation potential energy = 50J
h = ?
acceleration of gravity is 9.8 m/s 2
gravitation potential energy = m*g*h
50 J = 1.2 kg * 9.8 m/s^2 * h
h= 4.251 m
h ≈ 4.3 m
The shelf will be b) 4.3 m high
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Aray diagram is shown.
What does the letter red line represent?
Answer:
Red line is reflected ray.
Explanation:
According to the given figure, the blue line represent the incident ray. It strikes the surface and reflection occurs. The dotted line shows normal.
After reflecting the surface, the ray of light is reflected. Red line shows the reflected light.
In this case, the laws of reflection follows i.e. the angle of incidence is equal to the angle of reflection.
PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: I believe the answer is B (the second option)
side note: this shows a physics question . . . it is not
How does increasing the distance between charged objects affect the electric force between them?
OOOO
The electric force increases because the distance has an indirect relationship to the force.
The electric force increases because the distance has a direct relationship to the force.
The electric force decreases because the distance has an indirect relationship to the force.
The electric force decreases because the distance has a direct relationship to the force.
Answer:it’s c :)
Explanation:
Answer:
the electric force decreases because the distance has an indirect relationship to the force
Explanation:
Please help due in a few hours! 90 points!
A 600 N block is life’s by the friction-free pulley system shown.
What is the tension in the end held by the man? If the man exerts 60 J of work what will the increase of potential energy of the 600 N weight?
Answer:
+540n
Explanation:
Can someone answer this for me pls?
Answer:
near the 11'th mark I believe. I can't be sure until I see the options It'll be close to the 2n weight.
Explanation:
hope this helps I Can't answer so I don't want a thanks.
Protons have electrical charge; electrons have. electrical charge
Answer:
true
Explanation:
they both have an electrical charge
protons have a positive charge while electrons have a negative charge but both still have an electrical charge
When a ball is tossed upward, along the way
A. the amount of kinetic energy and the amount of potential energy change
B. all of its energy is lost to friction with the air, and both kinetic and potential energy are zero at the highest point of travel.
C. its potential energy decreases and reaches zero at the highest point of travel D. its total energy increases and is at a maximum at the highest point of travel
Answer:
A
Explanation:
going upward, kinetic energy decrease and potential energy increase
Answer:
A
Explanation:
As a ball is thrown into the sky, potential energy increases and kinetic energy decreases. But, the mechanical energy ( that is the sum of the potential and kinetic energy) remains the same....
Anthony is standing on the top of a building 10 m high holding a 7 kg bowling ball. Mildred dug a 2-m-deep hole next to the base of the building. What is the gravitational potential energy of the bowling ball relative to the bottom of the hole? P.E = mgh
A. 137.2 J
B. 548.8 J
C. 686.0 J
D. 823.2 J
Answer:
B
Explanation:
Can someone please help me with this?
Answer:
the answer is A.
Answer:
The Answer Is B.
It's Hard To Explain You Just Have To Trust Me
Explanation:
If It's Correct (Which i am certain that it is) can you plz award me with Brainliest
Which statements accurately describe trends found in the periodic table? Check all that apply.
Henry Moseley established a periodic table that arranges the elements by atomic number.
The atomic mass decreases from left to right on the periodic table.
The atomic number increases from left to right on the periodic table.
Nonmetals create a “staircase” down the periodic table.
Metalloids have the characteristics of both metals and nonmetals.
Answer:
A.)Henry Moseley established a periodic table that arranges the elements by atomic number.
C.)The atomic number increases from left to right on the periodic table.
E.)Metalloids have the characteristics of both metals and nonmetals.
Explanation:
Direct notes from edge:
-Metalloids have characteristics of both metals and nonmetals
-As you move left to right, the atomic number of each element increases by 1
-Henry Moseley Arranged elements in order of increasing atomic number
An airplane moves in straight level flight at constant velocity. What is the
net force acting on it if the mass of the plane is 1000 kg and the frictional
drag of the air is 1800 N? *
Answer:
Net force = 0
Explanation:
We have, an airplane moves in straight level flight at constant velocity.
Mass of the plane is 1000 kg
The frictional force acting of the air is 1800 N.
It is required to find the net force acting on it. We know that net force is given by the product of mass and acceleration. But here the airplane moves with constant speed, it means its acceleration is equal to 0 such that net force is equal to 0.
In a science experiment showing the splitting of water into Oxygen and hydrogen, two inverted test tubes of water were placed over the site of the reaction. (see the pic) How can you tell which one was catching the oxygen and which one was catching the hydrogen?
The hydrogen is a positive ion and will be located close to the negative terminal of the battery.
The oxygen is a negative ion which will be located next to the negative terminal of the battery.
There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.
The hydrogen, being a smaller atom, will take up less space than the oxygen. It will push the water down less.
Answer:
There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.
Explanation:
Electrolysis refers to the decomposition of a solution (electrolyte) owing to the passage of direct current through the solution.
Water is decomposed into its constituents; hydrogen and oxygen by electrolysis. However, a battery is connected to drive the process and other electrolytes such as dilute acids are added to improve the conductivity of water.
In the electrolysis of water, two moles of hydrogen gas is produced for each mole of oxygen gas produced. Hence the ratio of hydrogen to oxygen gas produced is 2:1 by volume. This implies that the space occupied by oxygen is half the space occupied by hydrogen. The hydrogen will thus occupy more space, pushing the water much lower than oxygen.
(05.03 MC)
The color of four stars is shown in the table below.
Color of Stars
Star Color
W Yellow
X White
Y Blue
Z Orange
What is the correct order of the surface temperature of the stars, starting from the highest to the lowest?
Group of answer choices
Y, Z, W, X
X, W, Z, Y
Y, X, W, Z
Z, W, X, Y
Answer:
C is correct
Explanation:
The order of the surface temperature of the stars, starting from the highest to the lowest is Y > X > W > Z.
What is Wien's displacement law ?Wien's displacement law states that, the black-body radiation curve for different temperatures will have different peaks of wavelengths and the wavelength is inversely proportional to the surface temperature.
Here,
According to Wien's displacement law,
The wavelength of the star is inversely proportional to its surface temperature.
λ [tex]\alpha[/tex] 1/T
where T is the surface temperature.
Therefore, the star with lowest wavelength will have the highest surface temperature.
Consider the wavelengths of each stars given,
The increasing order of their wavelengths can be written as,
λ(Orange) > λ(Yellow) > λ(White) > λ(Blue)
Therefore the increasing order of their surface temperatures will be,
T(Blue) > T(White) > T(Yellow) > T(Orange)
Hence,
The order of the surface temperature of the stars, starting from the highest to the lowest is Y > X > W > Z.
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In unsaturated fats, the fatty acid chain is missing some atoms of _____.
hydrogen atoms.
Explanation:
This is because unsaturated fatty acids have at least two double-bonded carbon atoms, so they cannot bond with the maximum number of hydrogen atoms.
Answer:
hydrogen atom
Explanation:
they have at least two double bonded carbon atoms,so they they can't bond with the maximum number of hydrogen atom
height of the image formed by a lens is-2cm.0what is the nature of the image?
Answer:
As the height is negative , image is inverted. This means it is inverted and real
A loop with a break in it that prevents current from flowing is called a(n)_______
circuit.
Answer:
an open circuit
Explanation:
The scientific theories to the law of parsimony?
Answer:
vfx local KFC kid lsd Ltd Ltd KFC
the upper body primal movement patterns are
Answer:
Bend to extend. Bending with a hips back movement, back straight, feet flat and forward. ...
Squat. This is a hips down motion. ...
Lunge. This is a long, linear stride, lowering your back knee to just above the ground, with a completely upright torso. ...
Rotate. ...
Push. ...
Pull. ...
Gait.
Hi, I need some science help ASAP. Here's the question:
Vanessa pushes a box with 50 N of force. The box accelerates 2 m/s2 for 10 seconds. What is the mass of the box?
5 kg
20 kg
25 kg
100 kg
Answer:
Mass of the box is 25kg
Explanation:
From Newton's second law of motion
Force= mass. acceleration
With the symbol
F=m.a
m=F/a m=(50N)/(2m/s²)
m=25kg
Answer:
25k
Explanation:
What is TRUE with regard to Bronfenbrenner's social ecological model applied to the context of relationships?
Answer:The affects of proximal factors on a relationship are affected by distal factors
Explanation:
pls what is a friendly relationship
Answer:
A relationship where both members are freindly and supportive towards each other.
Explanation:
Brainliest?
Answer:
i do not know is your are talking about boyfriend and girlfriend relationship of you are talking about friendship i am just going to say both so for a friendship they do not have to like the same thing but if they do that is cool they have to be nice to each other and understand what one of them wants to do and they have to get along if they want to have a goof friendship so for boyfriend and girlfriend it is okay for them to fight and not understand each other they have to be friends so they can no what they like to do with each other then they can go on dates together
Explanation:
hope i help sorry very long
Traveling in circle requires a net force
Answer:
Circular motion requires a net inward or "centripetal" force. Without a net centripetal force, an object cannot travel in circular motion. In fact, if the forces are balanced, then an object in motion continues in motion in a straight line at constant speed.
Explanation:
A wave that is traveling toward an interface is called the...??
Answer:
Surface wave
Eg ocean wave
Pretend you are explaining to a friend an object's energy can change depending on the position of the object. Use details from the text to help you write your conversation below.
The text is the picture
I WILL MARK YOU AS BRAINLIEST
Answer:
sorry, need better iinformation
Explanation:
.
Answer:
i am confused
Explanation:
Which of the following is NOT an important component of planning ahead?
A figuring out necessary steps
B. setting plausible limits
C. constructing an inflexible plan
D. deciding what you want to accomplish
Answer: B setting plausible limits
Explanation: because when you are planning ahead you must only think how to do the thing correctly if you do all of your steps correctly you won't have any limitations.
Answer:
The correct answer is constructing an inflexible plan. Planning is a huge part in an individual’s life and also the life of a company. Though we want to plan for everything that could possibly happen, there needs to be flexibility as situations can change. Due to the fact planning can have a positive affect on a business for future happenings, it must also have variable and flexible room incase there are changes that need to be made.
Explanation:
Which equation is balanced?
H2+ O2 + H2O + O2
H2+ O2 + H2O
2H2 + O2 + 2H2O
4H2 + O2 + H2O +O
Answer:
2H2+O2➡️2H2O is balanced. I think.
A girl is bouncing on a trampoline where is her gravitational potential energy a maximum and where is her kinetic energy maximum
Answer:
When you jump down, your kinetic is converted to potential energy of the stretched trampoline. The trampoline's potential energy is converted into kinetic energy, which is transferred to you, making you bounce up. At the top of your jump, all your kinetic energy has been converted into potential energy. Right before you hit the trampoline, all of your potential energy has been converted back into kinetic energy. As you jump up and down your kinetic energy increases and decrease.
How much current must be applied across a 60 Ω light bulb filament in order for it to consume 55 W of power? Unserious answers will be deleted, and reported. (Please show some work)
Answer: current I = 0.96 Ampere
Explanation:
Given that the
Resistance R = 60 Ω
Power = 55 W
Power is the product of current and voltage. That is
P = IV ...... (1)
But voltage V = IR. From ohms law.
Substitutes V in equation (1) power is now
P = I^2R
Substitute the above parameters into the formula to get current I
55 = 60 × I^2
Make I^2 the subject of formula
I^2 = 55/60
I^2 = 0.92
I = sqr(0.92)
I = 0.957 A
Therefore, 0.96 A current must be applied.
