20 points!
Does Heat go with Thermal Energy ?
Does Thermal Energy go with Temperature?
Does Temperature go with Heat?
Answers
Answer: temperature goes with the heat can you follow add me and heart me like me and can I get my 20 points
Explanation:
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy
Related Questions
Vector A has a magnitude of 63 units and points west, while vector B has the same magnitude and points due south. Find the magnitude and direction of a) A + B and b) A - B. Specify the directions relative due west.
Answers
Given :
Vector A has a magnitude of 63 units and points west, while vector B has the same magnitude and points due south.
To Find :
The magnitude and direction of
a) A + B .
b) A - B.
Solution :
Let , direction in north is given by +j and east is given by +i .
So , \(A=-63i\) and \(B=63j\)
Now , A + B is given by :
\(A+B=-63i+63j\)
\(| A+B | = 63\sqrt{2}\)
Direction of A+B is 45° north of west .
Also , for A-B :
\(A-B=-63i-63j\)
\(|A-B|=63\sqrt{2}\)
Direction of A-B is 45° south of west .
( When two vector of same magnitude which are perpendicular to each other are added or subtracted the resultant is always 45° from each of them)
Hence , this is the required solution .
Two equal, but oppositely charged particles are attracted to each other electrically. The size of the force of attraction is 87.96 N when they are separated by 24.04 cm. What is the magnitude of the charges in microCoulombs ?
Answers
The magnitude of the electric force between two charged particles is given by Coulomb's Law:
\(F=k\frac{|q_1q_2|}{r^2}\)Where q_1 and q_2 are the charges of the particles, r is the distance between the charged particles and k is the Coulomb's Constant:
\(k=8.99\times10^9N\frac{m^2}{C^2}\)Since the magnitude of both charges is the same, the equation becomes:
\(F=\frac{kq^2}{r^2}\)The force and the distance between the particles are given, the value of k is known and the charge q is unknown. Isolate q from the equation:
\(\begin{gathered} q^2=\frac{F}{k}r^2 \\ \\ \Rightarrow q=\sqrt{\frac{F}{k}r^2}=r\sqrt{\frac{F}{k}} \end{gathered}\)Replace the values of r=24.04*10^-2m, F=87.96N as well as the value of k to find the magnitude of the charges:
\(\begin{gathered} q=r\sqrt{\frac{F}{k}} \\ \\ =(24.04\times10^{-2}m)\times\sqrt{\frac{87.96N}{8.99\times10^9N\frac{m^2}{C^2}}} \\ \\ =23.779...\times10^{-6}C \\ \\ \approx23.78\mu C \end{gathered}\)Therefore, the magnitude of the charges in microCoulombs is: 23.78μC.
what is the wavelength λ of the standing wave shown on the guitar string?
Answers
The wavelength (λ) of a standing wave on a guitar string can be determined by considering the length of the string and the nodes and antinodes formed when the string is plucked or struck. When a guitar string is plucked, it vibrates, creating a standing wave pattern with nodes and antinodes. Nodes are points on the string where there is no displacement, while antinodes are points of maximum displacement.
To find the wavelength, we can start by examining the fundamental frequency, also known as the first harmonic. In this case, the standing wave pattern will have one antinode at the center of the string and two nodes at each end. The distance between two adjacent nodes or two adjacent antinodes corresponds to half a wavelength.
Let's denote the length of the string as L. Since the standing wave pattern consists of a full wavelength, we can say that the distance between two adjacent nodes or antinodes is L/2. Therefore, the wavelength of the fundamental frequency can be expressed as:
λ = 2(L/2) = L
In simpler terms, the wavelength of the fundamental frequency on a guitar string is equal to the length of the string itself. This means that shorter strings will have shorter wavelengths and higher-pitched sounds, while longer strings will have longer wavelengths and lower-pitched sounds.
It's important to note that the actual sound produced by a guitar string is influenced by other factors as well, such as tension, mass per unit length, and the speed of the wave traveling along the string. However, for the purpose of determining the wavelength of the standing wave pattern on a guitar string, the length of the string alone is sufficient.
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What are the ways of heat transfer?
Answers
Answer:
Conduction, Convection and Radiation
Explanation:
Hope this helps!
What is a Biome?
Define biome:
Each biome consists of many ___________________ whose _______________ have adapted to the
small differences in climate and the environment inside the biome.
To understand a world biome you need to know: (list the 4 things below)
1.
2.
3.
4.
Answers
Answer: Each biome consists of many habitats whose ecosystems have adapted to the small differences in climate and the environment inside the biome.
1. Most Plant and Animal Species Are Found in the Rainforest Biome.
2. Rainforest Plants Help in the Fight Against Cancer
3. Not All Deserts Are Hot.
4. One-Third of the Earth's Stored Carbon Is Found in Arctic Tundra Soil.
Biome is a regional or global land area that is characterized by the plants, animals and climate in that area.
Each biome consists of many __habits__ whose _ecosystem_ have adapted to the small differences in climate and the environment inside the biome.
To know a biome following things are important:-climatehabitatanimal and plant adaptation human activity.How many biomes are there?Based on temperature and rainfall there are six major biomes:
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Answer for 50pts
1. Draw a free body diagram for each of the following objects:
a. a projectile accelerating downward in the presence of air resistance
b. a crate being pushed across a flat surface at constant speed
2. A bag of sugar has a mass of 2.0 kg
a. What is its weight in newtons on the moon, where acceleration due to gravity is one-sixth of that on Earth?
b. What is its weight on Jupiter, where acceleration due to gravity is 2.64 times that on Earth?
3. A 3.0 kg block on an incline at a 50.0o angle is held in equilibrium by a horizontal force.
a. Determine the magnitude of this horizontal force (disregard friction)
b. Determine the magnitude of the normal force on the block
4. A 60 kg ice skater is at rest on a flat skating rink. A 200 N horizontal force is needed to set the skater in motion. However, after the skater is in motion, a horizontal force of 180 N keeps the skater moving at a constant velocity. Find the coefficients of static and kinetic friction between the skates and the ice.
Answers
Explanation:
1a. Free body diagram of a projectile accelerating downward in the presence of air resistance:
Free body diagram of a projectile accelerating downward in the presence of air resistance
b. Free body diagram of a crate being pushed across a flat surface at constant speed:
Free body diagram of a crate being pushed across a flat surface at constant speed
2a. Weight of the bag of sugar on the moon:
Weight = mass x acceleration due to gravity
On the moon, acceleration due to gravity is one-sixth of that on Earth, so
Weight on the moon = 2.0 kg x (1/6) x 9.81 m/s^2 = 3.27 N
b. Weight of the bag of sugar on Jupiter:
On Jupiter, acceleration due to gravity is 2.64 times that on Earth, so
Weight on Jupiter = 2.0 kg x 2.64 x 9.81 m/s^2 = 51.6 N
3a. To hold the block in equilibrium, the horizontal force must balance the component of the weight force that acts parallel to the incline. The weight force is given by:
Weight = mass x gravity
Weight = 3.0 kg x 9.81 m/s^2 = 29.43 N
The component of the weight force parallel to the incline is given by:
Force_parallel = Weight x sin(50.0o)
Force_parallel = 29.43 N x sin(50.0o)
Force_parallel = 22.58 N
Therefore, the magnitude of the horizontal force required to hold the block in equilibrium is 22.58 N.
b. The normal force on the block is equal in magnitude and opposite in direction to the component of the weight force that acts perpendicular to the incline. This is given by:
Force_perpendicular = Weight x cos(50.0o)
Force_perpendicular = 29.43 N x cos(50.0o)
Force_perpendicular = 22.52 N
Therefore, the magnitude of the normal force on the block is 22.52 N.
The fact that objects fall to earth at the same speed is called
Answers
Answer:
The Equivalence Principle of Gravity
Explanation:
The fact that objects fall to earth at the same speed is called the Equivalence Principle of Gravity.
What is the Equivalence Principle of Gravity?According to the Equivalence Principle of Gravity, all things fall at the same rate when there is little to no air resistance. The value of the acceleration caused by gravity is demonstrated by the force of gravity equation to be a constant that is independent of the mass of the item.
According to Einstein's equivalence principle, it is unnecessary to distinguish between gravitational and inertial forces because they are comparable in nature.
The inertia force acts in the opposite direction of an object's accelerating force.As a result, the Einstein equivalence principle can be expressed as "the effects of gravity are exactly identical to the effects of acceleration."Therefore, the Equivalence Principle of Gravity states that all objects descend to Earth at the same rate.
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What happens in both hemispheres when Earth is at position c
Answers
When the Earth is at point C, Equinox happens.
In Equinox, the Sun is directly above the equitor making day and night equal in both hemispheres.
A wheel rotates at a constant rate of 2x103 rev/min.
(a) what is its angular velocity in radians per second?
(b) through what angle does it turn in 10 s?
Express the solution in radians and degrees.
Answers
a) The angular velocity of the wheel is (2π/60) rad/s.
b) The angle is 60 degrees in 10 seconds.
Given data:
(a) To find the angular velocity in radians per second, we need to convert the given rate from revolutions per minute (rev/min) to radians per second (rad/s).
We know that 1 revolution is equal to 2π radians. Therefore, the conversion factor is 2π rad/rev.
Angular velocity (ω) is given by:
ω = (2π rev/min) * (1 min/60 s)
Simplifying, we have:
ω = (2π/60) rad/s
The angular velocity of the wheel is (2π/60) rad/s.
(b)
To find the angle turned by the wheel in 10 seconds, we can use the formula:
θ = ω * t
where θ is the angle in radians, ω is the angular velocity in radians per second, and t is the time in seconds.
Substituting the values:
θ = (2π/60) rad/s * 10 s
Simplifying, we have:
θ = (2π/6) rad
To convert the angle to degrees, we know that 2π radians is equal to 360 degrees. Therefore, the conversion factor is 360 degrees / (2π radians).
Converting the angle to degrees:
θ = (2π/6) rad * (360 degrees / (2π radians))
Simplifying, we have:
θ = 60 degrees
Hence, the wheel turns through an angle of (2π/6) rad or 60 degrees in 10 seconds.
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a horse is tied with a 2m long rope at a pole. what distance will the horse run around the pole with a rope tightly stretched, if it takes and one a half rounds? also find the displacement of the horse
Answers
Answer: Total distance = 4π meters and the Total Displacement = 0
Explanation: 1.5 rounds around the pole = 1.5 times the circumference of the circle form by the rope.
Circumference of a Circle = 2πr
from the question the radius = 2m, hence the total circumference = 2π*2 = 4π meters.
Displacement which is distance between initial position and final position. When the horse takes one and a half rounds around the pole, it ends up back at the starting point. Hence, the displacement is zero.
Consider states with angular momentum quantum number l = 2. in units of ħ, what is the value of l?
Answers
With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
What is the angular momentum quantum number?The total angular momentum quantum number in quantum mechanics parametrizes the total angular momentum of a particular particle by combining its orbital angular momentum and intrinsic angular momentum.
Given the angular momentum quantum number l = 2. in units of ħ. Therefore, the value of L can be written as,
L = √[l (l + 1)]
L = √[2 (2 + 1)]
L = √[2 (3)]
L = √6
L = 2.4494 h
Hence, With angular momentum quantum number l = 2. in units of ħ, the value of l will be 2.4494 h.
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Question 4
The diagram represents the motion of a sound wave. The distance between points A and C is 9 meters (m), and it initially takes the wave 3 seconds (s) to travel.
What will be the wavelength of the sound wave if the velocity of the wave remains constant but the pitch is tripled?
A 3 meters
B 6 meters
с 9 meters
D 18 meters
Answers
Answer:A
Explanation:
The wavelength of the sound wave will be 3 meters.
What is wavelength?
The wavelength of any wave is defined as the distance between two max adjacent amplitudes, or the distance between two successive troughs or crest.
Now it is given that:
Distance =9 meters
time = 3 seconds
pitch=1/3 seconds
The velocity of the sound will be
\(V=\dfrac{d}{t}=\dfrac{9}{3}=3\ \frac{m}{s}\)
Now from the question the wavelength of the sound wave if the velocity of the wave remains constant but the pitch is tripled
so \(f=3\times \dfrac{1}{3}=1 herts\)
Now the velocity of the sound will be
\(v=f\times \lambda\)
\(\lambda=\dfrac{v}{f}=\dfrac{3}{1}=3\ m\)
Thus the wavelength of the sound wave will be 3 meters.
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what are some difficulties in describing the motion of a pendulum using newton's laws instead of the principle of conservation of energy?multiple select question.the weight force varies in magnitudethe tension force varies in magnitudethe tension force varies in directionthe weight force varies in direction
Answers
The weight force acting on the pendulum varies in magnitude as it moves through its arc, as does the tension force of the string.
Describing the motion of a pendulum using Newton's laws can be challenging due to the following reasons:
1. The tension force varies in magnitude: As the pendulum swings, the tension force in the string changes depending on the angle of the swing, which affects the net force acting on the pendulum.
2. The tension force varies in direction: The direction of the tension force also changes as the pendulum swings back and forth. This changing direction makes it more difficult to apply Newton's laws directly to the problem.
3. The weight force varies in direction: While the weight force (gravity) remains constant in magnitude, its direction relative to the pendulum's motion changes throughout the swing. This change in direction adds complexity to the analysis of the pendulum's motion using Newton's laws.
By using the principle of conservation of energy, these challenges can be circumvented, as it allows for a more straightforward analysis of the pendulum's motion without needing to consider the varying forces acting on the system.
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Sally is riding her skateboard at 12.0 ft/s and passes under an apple tree. As she
moves past, she grabs a 2.0 kg branch with five apples right off the tree. Sally's mass
is 34 kg. What is her speed after grabbing the branch and apples?
Answers
Answer:
11.3
Explanation:
Which statement about electric charges is correct?
(A) An object with a positive charge and an object with a negative charge will repel each other.
(B) An object with a negative charge and an object with a positive charge will attract each other.
(C) Two objects with negative charges will attract each other.
(D) Two objects with positive charges will attract each other.
Answers
If 10 waves pass a point each second and their wavelength is 30m, what is their speed?
Give formula please
Answers
Answer:
300m/s
Explanation:
velocity = frequency(wavelength)
Since 10 waves pass a point each second, frequency is 10
therefore, speed = (10)(30 = 300m/s
The speed of light can be determined using the frequency and wavelength of that wave. The speed of the wave with the wavelength of 30 m and frequency of 10 s⁻¹ is 300 m/s.
What is wavelength?The wavelength of a wave is the distance that can travel per unit time or it is the distance between two consecutive crests or troughs of the wave.
The wavelength in inversely proportional to the frequency of the wave. Frequency of a wave is the number of waves passing per second.
The relation between wavelength and frequency to the speed of the wave is written as follows:
\(c = v \lambda\)
Thus speed of the wave is the product of its frequency and wavelength. Given that 10 waves pass per second. Thus, frequency is 10/s. Wavelength is 30 m . The speed is calculated as follows:
Speed of the wave = 30 × 10
= 300 m/s.
Therefore, the speed of the wave with the wavelength of 30 m and frequency of 10 s⁻¹ is 300 m/s.
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Why is it making me do this
Answers
Answer:
I don't know.
Explanation:
I have no idea what you are referring to.
Consider the autonomous equation y
′
=sin(y/2). (a) Find all the critical points. (b) Draw the phase line with range (−3π,3π) and determine the stability of each eritical point involved.
Answers
(a) The critical points are all values of y that can be written as 2nπ, where n is an integer.
(b) The solution is decreasing for y < -3π and y > 3π, and increasing for -3π < y < 3π.
The critical points of an autonomous equation are the points where the derivative is equal to zero. In this case, we have the autonomous equation y' = sin(y/2).
(a) To find the critical points, we set the derivative equal to zero and solve for y.
sin(y/2) = 0
Since sin(θ) = 0 when θ is a multiple of π, we have:
y/2 = nπ
where n is an integer. Solving for y, we get:
y = 2nπ
Therefore, the critical points are all values of y that can be written as 2nπ, where n is an integer.
(b) To draw the phase line with the given range (-3π, 3π) and determine the stability of each critical point, we can consider the sign of the derivative at different points.
For y < -3π, sin(y/2) is negative, so the derivative y' is negative. This means that the solution is decreasing in this interval.
For -3π < y < 3π, sin(y/2) is positive, so the derivative y' is positive. This means that the solution is increasing in this interval.
For y > 3π, sin(y/2) is negative, so the derivative y' is negative. This means that the solution is decreasing in this interval.
Based on this information, we can conclude that the critical points at y = 2nπ are all stable, as the solution approaches these points from both directions.
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The quantity δq/δt is the rate of heat transfer from the hot to the cold end of the rod.
a. true
b. false
Answers
The quantity δq/δt is the rate of heat transfer from the hot to the cold end of the rod true.
Q/t is the rate of heat transmission, and Q/t = kA ((T1-T2)/l), where k is the material's thermal conductivity, A is the cross-sectional area, T1-T2 is the temperature difference, and l is the thickness.
The pace at which heat transfers increases with temperature difference. One or more of the following three processes transfer heat. Conduction, such as coming into contact with things physically.
According to the Second Law of Thermodynamics, energy must be added in order for heat energy to go from a body at a lower temperature to a body at a higher temperature. Q = A * U * is a basic heat transfer formula (To - Ti). Summertime, on the other hand, results in an increase in surface temperature due to solar radiation.
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When you drop a 0.43 kg apple, Earth ex erts a force on it that accelerates it at 9.8m / (s ^ 2) toward the earth's surface. According to New ton's third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth 5.98 * 10 ^ 24 * kg what is the magnitude of the earth's acceleration toward the apple?
Answer in units of m / (s ^ 2)
Answers
Answer:
The answer to the question is highlighted in the box
Please help i’ll give brainlist if i can
Answers
Answer:
yellow
Explanation:
yellow
make me brain
281.999
Which of the following are strategles that will help you in the process of losing weight?
-watch TV while eating
-monitor your progress
-go to restaurants often to build your will power
- inform your friends about your
weight-loss plan
Answers
A physical therapy exercise has a person shaking a 5.00 kg weight up and down rapidly. if the barbell is moving at 4.50 m/s, what is the magnitude of the force required to stop it in 0.333 seconds?
Answers
The magnitude of the force required to stop the weight in 0.333 seconds is 67.6 N.
Magnitude of required force to stop the weight
The magnitude of the force required to stop the weight in 0.333 seconds is calculated by applying Newton's second law of motion as shown below;
F = ma
F = m(v/t)
F = (mv)/t
F = (5 x 4.5)/0.333
F = 67.6 N
Thus, the magnitude of the force required to stop the weight in 0.333 seconds is 67.6 N.
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What are two DIFFERENT resources that can be found on the ocean floor?
Answers
I hope this helped have a great day
Question 9 (28 points)
The earth's gravity keeps the moon in orbit by pulling on it. The moon's gravity
A. can only pull on smaller objects such as asteroids but has no effect on the earth
B. pulls back on the earth
C. pushes the moon away from the earth
D. doesn't affect anything
Answers
The moon's gravity pulls back on the earth. (B)
The two pulls are EQUAL.
Gravity always produces a pair (2) of equal forces in opposite directions. For example, your weight on the Earth is equal to the Earth's weight on you !
yes this nees helppppppppppppppp
Answers
Answer:
lol
Explanation:
it was funny
an electromagnetic wave travels in a straight line through a vacuum. The wave has a frequency of 6.0THz. What is the number of wavelengths in a distance of 1.0m along the wave?
Answers
Answer:
i think it is 123
spherical capacitor contains a charge of 3.20nCwhen connected to a potential difference of250V. If its plates are separated by vacuum and theinner radius of the outer shell is 4.60cm.
A) Calculate the capacitance.
B) Calculate the radius of the inner sphere.
C) Calculate the electric field just outside the surface of theinner sphere.
Answers
A) The capacitance of the spherical capacitor is 1.45 pF (picofarads), B) The radius of the inner sphere is 3.60 cm. and C) The electric field just outside the surface of the inner sphere is \(2.36 * 10^6 V/m\) (volts per meter).
To calculate the capacitance, we can use the formula C = Q/V, where Q is the charge and V is the potential difference. Plugging in the values, we get \(C = (3.20 * 10^{-9} C)/(250 V) = 1.28 * 10^{-11} F\).
However, since the capacitor is a spherical one, we need to use the formula for the capacitance of a spherical capacitor, which is \(C = (4\pi \epsilon_0)(r_1 r_2)/(r_2-r₁)\), where r₁ and r₂ are the radii of the two shells and ε0 is the permittivity of free space.
Rearranging the formula and plugging in the values, we get \(r_1 = (C/4\pi \epsilon_0)(r_2-r_1)/r_2,\) which gives us r₁ = 3.60 cm.
To calculate the electric field just outside the surface of the inner sphere, we can use the formula
E = \(\frac{Q}{4\pi\epsilon_0 r^2}\), where r is the radius of the inner sphere.
Plugging in the values, we get \(E = (3.20 * 10^{-9} C)/(4\pi\epsilon_0(0.0460 m)^2) = 2.36 * 10^6 V/m.\)
This electric field arises due to the charge on the inner sphere and induces an opposite charge on the outer shell of the capacitor.
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a driver brings a car to a full stop in 2.0s its acceleration is -11m/s. how far did the car travel while braking
Answers
Answer:
22
Explanation:
How do conditions in the wild differ from conditions in captivity?
Answers
The wild offers more natural structures and temperatures that keep animals adapted to their surroundings. However, in captivity animals tend to differ from their wild counterparts. For one thing, the wild cultivates an animal's hunting skills but, when or if they are releasing into the wild, they do not know what to do whereas they have been sheltered their entire life. They don't know how to find natural structures to keep warm in, what places are safe or even survival strategies. The conditions in the wild teach an animal to survive while the conditions from man-made structures just give them an easy survival.
Hope this helps and have a nice day.
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