Answer:
Ryan is examining the energy of the particles in a bar of gold. Ryan is most likely studying internal energy
Explanation:
Ryan is examining the energy of the particles in a bar of gold. Ryan is most likely studying internal energy.
What is energy?The energy is the ability to do work. It can be external or internal.
Any object is made up of atoms or molecules or particles equal to the Avogadro number. It has the energy occupied into its volume. This energy is contained by each and every particle of the atom.
The study of the gold particles is the study of internal energy.
Thus, Ryan is most likely studying internal energy.
Learn more about energy.
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need asap !
a television of mass 15 kg sits on a table the coefficient of static friction between the table and the television is 0.35 what is the minimum applied force that will cause the television to slide?
a. 79 n
b. 38 n
c. 147 n
d. 51 n
D. 51 N. The minimum applied force that will cause the television slide is 51 N.
In order to solve this problem we have to use the force of static friction equation Fs = μs*n, where μs is the coefficient of static friction, and n is the normal force m*g.
With μs = 0.35, and n = 15kg*9.8m/s² = 147 N
Fs = (0.35)(147 N)
Fs = 51.45 N
Fs ≅ 51 N
The answer is D) 51 N
mackinzie walks 4 blocks west, then 2 blocks south, then 4 blocks east, and, finally, 1 block south. what is the magnitude of her total displacement (in blocks)?
the magnitude of her total displacement in blocks is 3.
Answer:
3 blocks towards south
Explanation:
Displacement is the shortest distance between the final position and initial position.
Initially mackinzie moves 4 blocks west, then 2 blocks south, the 4 blocks east and then 1 block south. Net displacement in East-west direction = 4 - 4 = 0.
In North South direction, net displacement = 2+1 = 3 blocks towards south
help meeee pleaseeee
Carbonation, Hydrolysis and Oxidation all relates to chemical reactions with the rocks - so these are forms of Chemical weathering
Frost wedging is where the rocks and earth is broken apart by water freezing and turning to ice. It has nothing to do with rocks themselves changing in their chemical composition. So this is a type of physical weathering.
------------------------------------------------------
Answer:
Frost wedging is a type of physical weathering.
Hydrolysis, oxidation and carbonation are all under chemical weathering
Therefore; frost wedging is a type of physical weathering
How many feet are in a mile
Hello There!
There are 5,280 feet in 1 mile.
Have A Great Day!
What does every magnet possess?
A. iron metal
B.strong magnetic field
c.repulsion
D.north and south poles
Answer:
North and South poles
Explanation:
It wouldn't be a magnet if it did not have the poles, also not every magnet has a strong magnetic field, along with all above besides D
Suppose the tourist in question #1 instead threw the rock with an initial velocity of 8.0
m/s (down). Determine the velocity and displacement of the rock at 4.0 s (Remember
the v; is down and must become a -8.0 m/s)
Answer:
Explanation:u=8m/s, a=8m/s*s, t=4s
Using v= u + at
v=8+-8*4
v=-24m/s
Displacement=s
Using s=½(u+v)t
s=½(8-24)4
s=½*-16*4
s=-8*4
s=32m( you can solve without observing the negative sign)
Which of the following is a measure of the amount of light a star directly emits?
A. Luminosity B. Intensity C. Wavelength D. Brightness
Luminosity is the amount of light a star directly emits from its surface.
Luminosity is a measure of the amount of light a star directly emits.
Answer : Option A
Explanation:
Light intensity is similar to brightness of the light where it is a measure of amount of light focused with respect to area and its unit is called as lux represented by lx.
Different light has different wavelengths according to the electromagnetic spectrum. Luminosity is the best option from the given ones as is a measure of amount of light emitted from an object which is here referred to a star.
Which circuit is a series circuit ?? plz help
In a series circuit, all of the components are connected in the same 'loop' and the current only has one direction/path it can flow through.
In the first three options, the current has multiple paths it can go through. So these three circuits are parallel and not series.
In the last option, the current only has one path where it can flow through, so that circuit is in series.
So Circuit D is a series circuit.
----------------------------------------
Answer
Circuit D
Answer:the last one
Explanation:in a series circuit, only one current flows through it. i.e it connected by a single wire
An ionic compound can conduct electricity when
A it is dissolved in water
B its crystals are ground into powder
C it is in solid form
D it is heated to just below its melting point
Answer:A it is dissolved in water
2 FULLS
What is the term given to vectors that don't lie in a straight line but instead
point in different directions?
A. One-dimensional
B. Resultants
C. Two-dimensional
D. Displacements
Answer:
Two vectors not lying in the same line and pointing in different direction
C. Two-dimensional
Explanation:
One-Dimensional vectors will point in a single direction only. There magnitude will simply add up.
In case of opposite directions, both the vectors must be lying on a straight line. There magnitude will be subtracted from each other,
Two dimensional vectors are quantities with magnitude and direction and they are represented by two components, x and y.
So, vectors which are not in a straight line and point in different directions are called Two-dimensional vectors.
Suppose that the half-life of an element is 1000 years. How many half-lives will it take before one-eighth of the original sample remains?
8
125
12.5
3
Answer:
3
Explanation:
The half-life of a radioactive isotope is the time it takes for the mass of the sample to halve.
This can be rewritten as follows:
[tex]m(t) = m_0 (\frac{1}{2})^n[/tex]
where
m(t) is the mass of the sample at time t
m0 is the original mass of the sample
n is the number of half-lives that passed
We see that if we take n=3, the amount of original sample left is
[tex]m(t) = m_0 (\frac{1}{2})^3 = m_0 (\frac{1}{8})[/tex]
So 3 (3 half-lives) is the correct answer.
Answer:
the answer is 3
Explanation:
Why can light travel through outer space, but sound cannot?
Answer: Sound has vibrations of molecules and it spread through the air
Explanation: Pretty much what this means you need molecules to produce sounds and in space there isn't any. On the other hand light is a electromagnetic waves and those waves do not need a medium to travel through
Light can travel through outer space, unlike sound, because light is composed of electromagnetic waves that don't need a medium to propagate. In contrast, sound waves are mechanical and require a medium to travel through, which is absent in the vacuum of outer space.
Explanation:The reason light can travel through outer space, but sound cannot is due to the type of waves these two are and what they require to propagate. Light is composed of electromagnetic waves, which are generated by charged particles and do not require a medium to propagate. This quality allows light to travel in a vacuum, such as outer space.
On the other hand, sound waves are mechanical waves. This means they require a medium—be it solid, liquid, or gas—to transmit their energy and thus, to propagate. In the vacuum of outer space, where there is no air or other medium for sound waves to travel through, sound cannot be propagated.
To illustrate, if you're observing a fireworks display, you'll see the burst of light before you hear the sound because light travels faster and does not need a medium like sound does. In the vacuum of outer space, you would see the light from the fireworks, but never hear the explosion.
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what is the momentum of a dog of mass 20 kg that is running east with a speed of 3 m/s?
Answer:
60 kg.m/s
Explanation:
Momentum is the product of mass and velocity
p=m*v where m is mass in kg and v is velocity in m/s
Given that;
m=20kg and v=3m/s then;
p= 20×3= 60kgm/s
Answer:
60 kg * m/s east.
Explanation:
Momentum is a vector quantity, so you must include direction in the answer. Work by the guy above me ^_^
Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? +8.6 m/s +5.7 m/s –5.7 m/s –8.6 m/s.?
Answer:
+5.7 m/s
Explanation:
According to the law of conservation of momentum is that the momentum before the collision is equal to the momentum after the collision. In an equation form it would look like this:
M₁V₁+M₂V₂ = M₁V₁'+M₂V₂'
Where:
M₁ = mass of object 1 (kg)
V₁ = velocity of object 1 before the collision (m/s)
V₁' = Final velocity of object 1 after the collision (m/s)
M₂ = mass of object 2 (kg)
V₂ = velocity of object 2 before the collision (m/s)
V₂' = Final velocity of object 2 after the collision (m/s)
According to your problem you have the following given:
M₁ = 5 g = 0.005kg
V₁ = 3 m/s
V₁' = -5m/s (It bounced off so it is going the other direction)
M₂ = 6g = 0.006kg
V₂ = -1 m/s (It is coming from the opposite direction of the 3-ball)
V₂' = ?
So we plug in what we know and solve for what we don't know.
[tex]M_1V_1+M_2V_2 = M_1V_1' + M_2V_2'\\\\(0.005kg)(3m/s)+(0.006kg)(-1m/s) = (0.005kg)(5m/s)+(0.006kg)(V_2')\\\\(0.015kg\cdot m/s)+(-0.006kg\cdot m/s)=(-0.025kg\cdot m/s)+(0.006kg)(V_2')\\\\0.009kg\cdot m/s+0.025kg\cdot m/s = (0.006kg)(V_2')\\\\\dfrac{0.034kg\cdot m/s}{0.006kg} = V_2'\\\\5.7m/s = V_2'[/tex]
Answer:
+5.7 m/s
Explanation:
Just did the assignment :)
A cup of water with holes cut in the bottom will leak because the water is
heavier than the cup.
O A. True
O B. False
Answer:
Salutation
Explanation:
This statement would be incorrect see because water would drip through a cup no matter how heavy because its a liquid and with it having no natural shape it can squeeze through the holes of the cup
The given statement is false.
The water will leak through the holes in bottom not because it is heavier than the cup but because for the reason it is a liquid.
Explanation:
The water is a liquid with a standard viscosity, even with lighter viscosity or heavy viscosity, it will eventually leak out of the cup with the hole in the bottom as the liquid holds the shape of the container unlike solid and thus with hole, leaks out.
GUESS WHAT??? I'LL MAKE YOU BRAINLIEST!!! PLEASE HURRY!
The summer is caused by __________.
A) direct sunlight striking Earth
B) indirect sunlight striking Earth
C) Earth's closeness to the sun
D) Earth's far distance from the sun
Answer:
A) direct sunlight striking Earth
Explanation:
The summer is caused by direct sunlight striking Earth.
Answer:
A) direct sunlight striking Earth
Explanation:
Think about why there are seasons.
Here is proof that my answer is correct:
An athlete performing a long jump leaves the ground at a 27.0 degree angle and lands 7.80m away. What was the takeoff speed?
Answer:
=9.72 m/s
Explanation:
From the Newton's laws of motion;
x=2(v²cos∅sin∅)/g
Using geometry we see that 2 cos∅sin∅ = sin 2∅
Therefore, x= (v²sin 2∅)g, where v is the take off speed x the range and ∅ the launch angle.
Making v the subject of the formula we obtain the following equation.
v=√{xg /(sin 2∅)}
x=7.80
∅=27.0
v=√{7.8×9.8/sin(27×2)}
v=√94.485
v=9.72 m/s
To find the takeoff speed of an athlete performing a long jump, we can use the principles of projectile motion.
Explanation:To calculate the takeoff speed of an athlete performing a long jump, we can use the principles of projectile motion. Since the jump is treated as a projectile, we can break down the motion into horizontal and vertical components.
First, we need to find the vertical component of the takeoff speed. We know that the jumper leaves the ground at a 27.0 degree angle and lands 7.80m away. The vertical displacement can be calculated using the equation:
Δy = v0y * t - (1/2) * g * t^2
The horizontal component of the takeoff speed can be found using the equation:
Δx = v0x * t
By combining these two equations and solving for the takeoff speed, we can determine the answer.
Which statement about covalent bonds is true
Answer:c
Explanation:
i did the usatestprep
HEY.. ♥️♥️
PLEASE HELP ME IN SOLVING THIS QUESTION
Let Vb = the velocity of the boat.
Vw = the velocity of the flow of the stream.
X = the distance the boat traveled downstream.
So X = (Vb+Vw)T
After turning, the boat takes t time to get back to the float.
Then x -l = (Vb-Vw)t
and l = Vw * (T+t)
Replacing the equations for their variables you get (Vb+Vw)T-Vw(T+t) = (Vb-Vw)t
Simlify to: Vw = l/T+t = l/2T
Now using the values in the problem:
Vw = 12km / 2 * 60 = 12 km / 2hrs = 6km
The answer is 1. 6 km h^-1
Answer:
Hope it can help you and mark me as a brainlist....
Question 1 of 10
Multiple Choice: Please select the best answer and click "submit."
What method of forecasting predicts the arrival time of a storm based on its
current speed and other starting variables
O A. Climatology method
O B. Trends method
O C. Analog method
OD. Persistence method
Answer:
B) trends method
I'm very sure of this answer
Answer:
Trends Method
Explanation:
From
A
P
E
X
When are the displacement and acceleration equal to zero for the motion of a mass on a spring?
OA at maximum displacement
OB at minimum displacement
0
at the equilibrium position
OD
at a displacement of 2x
0
at a displacement of - X
Answer:
Option B is the right answer.
Answer:
The correct answer is C. at the equilibrium position.
Explanation:
what does SI stand for,when referring to a system of measurement
si = system international
Answer:
SI stands for International system of units
Explanation:
The SI system, is used around the world to remove bias and inequality of measured values. This made it possible to achieve unified measurements of quantities anywhere in the world by various conversion process. The seven basic SI units are: kilogram (kg), meter (m), second (s), kelvin (K), ampere (A), mole (mol), and candela (cd).
Which best explains what happens when an electron moves from an excited state to the ground state?
O
O
O
O
The electron absorbs energy as it moves to a lower energy level.
The electron absorbs energy as it moves to a higher energy level.
The electron releases energy as it moves to a higher energy level
The electron releases energy as it moves to a lower energy level.
Answer:
The electron releases energy as it moves to a lower energy level.- last choice
An "excited state" is a condition where the electron has MORE energy. The "ground state" is the lowest energy level, where the electron has the minimum possible energy.
So, when an electron moves from an excited state to the ground state, it loses energy. The electron releases energy as it moves to the lowest energy level.
(last choice)
Luke and Carrie are driving down a straight section of the interstate at 70 mph in Luke's new convertible. Carrie is drinking a soda in the passenger seat. When she is done she tosses the bottle straight up in the air, just above the height of the car. What will happen to the bottle if air resistance is neglected?
A.
The bottle will land in Carrie's lap.
B.
Not enough information is given.
C.
The bottle will land on the interstate in front of the car.
D.
The bottle will land on the interstate behind the car.
Final answer:
The bottle will land in Carrie's lap because it maintains the same horizontal velocity as the car when tossed up, provided air resistance is ignored. The correct answer is A. The bottle will land in Carrie's lap.
Explanation:
If Carrie tosses the bottle straight up in the air above the convertible that is moving at 70 mph and air resistance is neglected, the correct answer is A. The bottle will land in Carrie's lap. This is because, according to Newton's laws, the bottle has the same horizontal velocity as the car when it is released.
Therefore, it will continue to move forward with the car at the same speed, assuming no air resistance is present to alter its path. If we were to consider air resistance, the path of the bottle could change and it might not land back in Carrie's lap.
This principle is illustrated in various physics problems, like those involving projectile motion where gravity is the only force acting on an object, and conservation of momentum in a frictionless environment.
Which describes an image that can be produced by a concave lens?
The image is real and smaller than the object.
The image is virtual and larger than the object.
The image is virtual and smaller than the object.
The image is real and larger than the object.
Answer:
The image is virtual and smaller than the object.
Explanation:
A concave lens is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its center than at its edges.
It always produces virtual images because the image appears to form on the same side of the lens where the object is placed.
The image is always smaller than the object. Far the object, smaller will be its image.
A light ray diagram of a concave lens is attached for a better understanding.
Which elements are not noble gases?
check all that apply
A.) Neon
B.) Helium
C.) Lithium
D.) Calcium
Lítio é metal
Hélio é gás nobre
Neônio é gás nobre
Cálcio não é gás nobre
Os gases nobres são os elementos da família 18 da Tabela Periódica, que são: hélio, neônio, argônio, criptônio, xenônio e radônio.
The elements are not noble gases include Lithium and calcium. The correct option are C and D.
What is noble gas?Noble gases are the elements of Group 18 of the periodic table. The elements are namely, helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and Oganesson (Og).
The noble gases are always stable. They do not have any valence electrons to share with any other elements. They have neutral charge.
Thus, Lithium and calcium are not noble gases.
Learn more about noble gas.
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simplifying fractions
30 over 54
Answer:
5/9
Explanation:
First, find a common factor for 30 and 54.
30 and 54 can both be divided by 2.
30 divided by 2 = 15
54 divided by 2 = 27
So, your new fraction is 15/27.
However, don't stop there.
15 and 27 can both be divided by 3 as well.
15 divided by 3 = 5
27 divided by 3 = 9
So, your final answer is 5/9.
I hope this helps! :)
Answer:
5/9
Explanation:
Which of the following is most likely to be the best conductor of electricity?
oxygen
chlorine
aluminum
chromium
Answer:
I think its oxygen, a conductor is something that allows heat very easily.
Explanation:
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The purpose of the Scientific Method is to eliminate any doubts in your research.
True
False
Answer:
true
Explanation:
you need to eliminate all unreal outcomes
what did the greeks study amber with?
Answer:
The Greeks used static electricity to study amber.