Answer:
$1.5
Explanation:
how does an ice cube cause hot coffee to become cool and through what heat transfer
What is the net force on a 116 kg woman free falling at 97 m/s who has reached terminal velocity.
Directions: Complete the concept map using the terms listed below.
pushes and pulls
Newton's Laws
inertia
acceleration
unbalanced
mass
pairs
gravity
1.
and
forces
such as
when they are
7.
2.
they
generate
which is a
force of
attraction
motion
can be measure by
between two
objects with
3.
4.
8.
describes
which is a
measure
of
relates force,
mass and
describes
forces in
5.
6.
Answer:
this is confusing
Explanation:
Why is oxygen more chemically reactive than nitrogen?
A. Oxygen needs to gain only 2 electrons to have a full octet, while
nitrogen needs to gain 3.
B. Oxygen needs to gain only 2 electrons to have a full octet, while
nitrogen needs to lose 3.
C. Oxygen needs to lose only 2 electrons to have a full octet, while
nitrogen needs to lose 3.
D. Oxygen needs to lose only 2 electrons to have a full octet, while
nitrogen needs to gain 3.
Oxygen is more chemically reactive than nitrogen because Oxygen needs to gain only 2 electrons to have a full octet, while nitrogen needs to gain 3. The correct option is A.
What are electrons?The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.
Valence electrons are the electrons present in the outermost shell of an atom. They can easily be determined by the number of valence electrons in an atom by looking at the specific group in the periodic table.
The fewer number of electrons in the valance shell, the more reactive is the element.
Oxygen needs to gain only 2 electrons to have a full octet, while nitrogen needs to gain 3.
Thus, Oxygen is more chemically reactive than nitrogen.
Then the correct option is A.
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Answer:
A
Explanation:
Apex built different
Which of the following is required for U.S. citizens to travel outside the United States?
A. Consul
B. Embassy
C. Passports
D. Visas
Answer:
C.
Explanation:
What is elementary entities?
Answer:
Answer: Elementary Entities are any of several entities, such as electrons, neutrons, or protons, that are less complex than atoms and are regarded as the constituents of all matter.
Sugar dissolved in water is an example of?
A. Precipitate
B. Molecule
C. Compound
D. Solution
Answer:
D. Solution
Explanation:
Sugar dissolved in water is an example of solution.
A solution is a homogenous mixture of solutes and solvents.
In a solution the solute particles ae distributed uniformly in the solvents. The solute is the substance and it is the sugar here that is dissolved to make a solution.
The solvent is the water in this instance that helps to dissolve the solute.
Answer:
D. Solution
Explanation:
Dissolving sugar in water is an example of a physical change. Here's why:
A chemical change produces new chemical products. In order for sugar in water to be a chemical change, something new would need to result.
Hi!!I need sum help with this bc my teacher told me it had to be more specific!
I will award brainiest for the beat answer!Thank you!
Question:
Use your knowledge of waves in the graph shown to determine the frequency of wave C. What does it tell you about the speed of the wave?
"Frequency" means how often something happens. When you say how many times it happens every SECOND, you can call the number Hertz, or Hz.
In the graph, there are 10 vibrations in 10 seconds, 20 of them in 20 seconds, and 30 in 30 seconds. This should pretty much shout at you "THERE'S ONE VIBRATION EVERY SECOND !". When you realize that, you can say the frequency of the vibration is 1 Hz.
The graph tells us nothing about the speed of the waves. I suspect there's another picture to the question that you didn't include. If the other part shows the wavelength, then we could figure out the speed. But with just what you're showing us, we can't.
HELP NEEDED ASAP GIVING BRAINLIEST!!
View the video clip below and answer the question.
The video clip above illustrates the process of __________
Exploding planet or astroifd
Complete the following statements for each of these rules
a (?)×(-)=(+)
b (?)×(-)=(×)
c (-)÷(-)=(?)
d (-)×(?)=(-)
e(+)÷(-)=(?)
f(+)÷(+)=?
g(?)÷(+)=(-)
h(-)3=?
i (+)3=?
j(-)2=?
l(+)2=2
Answer:
i dont know
Explanation:
What Types of simple machines are are shown in the following pictures?
Answer:
dryer, scissors, ramp, axe, metal detector, rake, stairs, lid, soccer ball, and egg beater
Explanation:
btw its in that exact order plz make me brainliest
The type of simple machines which are shown in the following image include the wheel and axle, pulley, inclined plane, screw, wedge, and lever.
What is Simple machine?A simple machine is a mechanical device which is responsible for the changes in the direction or magnitude of a force. In general, simple machines can be defined as the simplest mechanisms which can use mechanical advantage to multiply force.
Simple machines which are widely used in daily works include the wheel and axle, pulley, inclined plane, screw, wedge, and lever.
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plllllllllllssssss help will give brainiest if your get correct
Answer:
Electrical energy is transformed into heat and light energy
Explanation:
hope this helps
A car drives in a circle at 56 km/hr. Which of
the following accurately describes the
motion of the car? The car's -
speed and velocity are both constant.
velocity is constant but speed is changing.
speed is constant but velocity is changing.
speed and velocity are both changing.
Answer:
Speed is constant but velocity is changing
Explanation:
Speed is a scalar quantity, meaning magnitude only. Velocity is a vector quantity, meaning magnitude and direction. If you're moving in a circle at a constant speed, the speed is constant but the direction is constantly changing. Therefore, the speed is constant but velocity changes.
Compare the Moon phases from Feb 16 through Feb 20.
Answer:
The phases occur because the Sun lights different parts of the Moon as the Moon revolves around the Earth. That means the reason we see different phases of the Moon here on Earth is that we only see the parts of the Moon that are being lit up by the Sun.
List at least 5 examples of civil rights
Answer:
right to vote, the right to a fair trial, the right to government services, the right to a public education, and the right to use public facilities.
Find the following answer based on the image.
We are given:
Mass of Neptune = 1.03 * 10²⁶ kg
Distance from the center of Neptune (r) = 2.27 * 10⁷
now, computing the value of the acceleration due to gravity (g)
Finding g:
We know the formula:
g = G(mass of planet) / (r)²
g = [6.67 * 10⁻¹¹ * 1.03*10²⁶] / (2.27*10⁷) [since G is 6.67*10⁻¹¹]
g = (6.87 * 10¹⁵) / (5.15 * 10¹⁴)
which can be rewritten as:
g = (6.87 * 10¹⁵ * 10⁻¹⁴) / 5.15
g = (6.87 * 10¹⁵⁻¹⁴) / 5.15
g = (6.87/5.15) * 10
g = 1.34 * 10
g = 13.4 m/s² (approx)
Write 3 things you want to learn about the ocean.
Answer: How it was created, The frequency of the waves, and is the water salty enough to kill someone.
Explanation:
Just from my brain.
Answer: the ecosystem , differnt species of fish, and ship wrecks
Explanation:
:)
If three balls of different materials were dropped at the same time from the same height, which would hit the ground first? (Assume there is no
air resistance.)
Answer:
It depends of the mass and weight of each of the materials
Explanation:
I WILL GIVE BRAINLIEST
This is science but there’s no science category
When does a solar eclipse occur?
When an object in space comes close to Earth's orbit
When an object in space gets too close to the sun
When an object in space comes between two planets
When an object in space comes between the sun and Earth
What is the difference between a chemical change and a physical change? *
A. There is no difference.
B. A chemical change CAN NOT be reversed. A physical change CAN be reversed.
C. A physical change CAN NOT be reversed. A chemical change CAN be reversed.
D. They can both be reversed.
Answer:
I do belive that it is B hrs cn I an gn
Objects in free fall near the surface of the Earth experience acceleration of?
a) 8.9 m/s
b) 9.8 m/s
c) 9.8 m/s/s
d) 8.9 m/s/s
How does information travel during transcription?
a) RNA to amino acid
b) DNA to amino acid
c) DNA to RNA
d) RNA to DNA
10 points
A 61.0 kg box is sitting at rest. In order to change the box's state of
motion, Jamie must apply 75.1 Newtons of force on the box. Which of the
following represents a possible value for the force of static friction when
Jamie applied 75.1 Newtons of force on the box? (**hint- you do not need
to do math for this problem) *
A. 71.9 N
B. 75.1 N
C. 85.3 N
D. 133 N
A possible value for the force of static friction when Jamie applied 75.1 Newtons of force on the box is 75.1N. Option B is correct.
For the box sitting on a horizontal surface, the formula for calculating the force on the box along the horizontal based on Newton's law is expressed as;
[tex]\sum F_x=ma_x[/tex]Since the forces acting along the horizontal are the frictional force and moving force, the formula above will become;
[tex]F_m-F_f=ma_x[/tex]Since the body is static, hence [tex]a_x=0m/s^2[/tex], the equation becomes;
[tex]F_m-F_f=m(0)\\F_m-F_f=0\\F_m=F_f[/tex]Given the force Jamie apply on the box to be 75.1Newtons, this shows that the moving force is 75.1N. Hence;
[tex]F_m =F_f=75.1N[/tex]Hence a possible value for the force of static friction when Jamie applied 75.1 Newtons of force on the box is 75.1N
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A diverging lens has a focal length of 18.6 cm.
An object 1.49 cm in height is placed 353 cm
in front of the lens.
1.Locate the position of the image.
Answer in units of cm.
2.What is the magnification?
3.Find the height of the image.
Answer in units of cm.
A horse pulls a carriage by applying 450 N of force. Find the traveled distance if the horse did 89 kJ of work.
Answer:
distance = 197.8 m
Explanation:
Use the formula for work as the force times the distance the force was acting on the object.
W = F * d
89000 J = 450 N * d
d = 89000/450 m
d = 197.8 m
Speed and velocity use the same formula for calculations. However, an object can have a different average speed and average velocity because of
displacement
True
False
Answer:
true..........................
Speed and velocity use the same formula for calculations. However, an object can have a different average speed and average velocity because of displacement. This is true statement.
What are velocity and speed?As a vector quantity with both magnitude and direction, velocity has both. This term refers to the speed at which an object is moving or shifting positions.
Since speed is a scalar quantity, it lacks direction. It indicates the rate of a moving thing. When a particle's speed is high, it indicates that it is travelling quickly, and when it is low, it indicates that it is going slowly.
The displacement of a body during a period of time divided by the passage of time yields the average velocity of the body during that period.
The distance travelled by a body in a given amount of time, divided by the amount of time, is the body's average speed.
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Beyonce weighs 500 N and is sitting at one end of a see-saw which is 4 m long and balanced in the middle. Jordan is 2000 N. Where should she sit in order to balance the see-saw?
Answer:
11 moments docx has the answer
Explanation:
U must pay money to get through it
A student is using graphs to model the relationship between frequency and wavelength in light waves produced by a source that is changing color over time. The student had completed the graph for frequency shown below. Which graph should the student use for wavelength change during this same period?
Balok diam diatas bidang miring pada sudut kemiringan 40° balok mulai bergerak,tentukan koefisien gesek statis antara balok dan bidang miring
Answer:
0.84
Explanation:
m = Massa balok
g = Percepatan gravitasi
[tex]\theta[/tex] = Sudut kemiringan
[tex]\mu[/tex] = Koefisien gesekan statik antara balok dan bidang miring
Gaya balok karena beratnya diberikan oleh
[tex]F=mg\sin\theta[/tex]
Gaya gesekan diberikan oleh
[tex]f=\mu mg\cos\theta[/tex]
Kondisi dimana balok mulai bergerak adalah ketika gaya balok akibat beratnya sama dengan gaya gesek pada balok.
[tex]mg\sin\theta=\mu mg\cos\theta\\\Rightarrow \mu=\dfrac{mg\sin\theta}{mg\cos\theta}\\\Rightarrow \mu=\tan\theta\\\Rightarrow \mu=\tan40^{\circ}\\\Rightarrow \mu=0.84[/tex]
Koefisien gesekan statik antara balok dan bidang miring adalah 0.84.
atom is of
6000
The results suggested that the diameter of the nucleus of a gold
the diameter of the atom.
The diameter of a gold atom is 0.18 nm
Calculate the diameter of a gold nucleus in nm.
Answer:
The diameter of the gold nucleus is 3.0 × 10⁻⁵ nm
Explanation:
The given parameter of the gold atom are;
The diameter of the gold atom = 1/6,000 × The diameter of the atom
The diameter of a gold atom = 0.18 nm
The diameter of the gold nucleus, [tex]d_{Gold -nucleus}[/tex] = 1/6,000 × 0.18 nm = 0.00003 nm
∴ The diameter of the gold nucleus, [tex]d_{Gold -nucleus}[/tex] = 0.00003 nm = 3.0 × 10⁻⁵ nm.
