Answers
Answer:
bouyant force - the upward force on an object in a fluid
boiling point - the temperature at which a liquid becomes a gas
solubility - the ability of a substance to dissolve in another
conductivity- the ability to transfer heat or electricity
density - the amount of mass in a given volume
Related Questions
why is area called scalar quantity
Answers
Answer:
area is called scalar quantity because there is no need of direction to define and also follow the algebric summation ..... is your answer
a car travels 15 miles in 30 minutes . calculate the average speed
Answers
Answer:
15/30 = .5 miles/m
Explanation:
v = d/t
velocity = 15 / 30
What changes and challenges have you noticed in your relationship with your friends? Write a paragraph
explaining your answers.
Answers
Answer:
While in a relationship, friends can influence you to love your partner in different ways, sometimes because of how they also relate with their partners or what they say to you about your partner or the advice they give about and in your relationship.
Explanation:
What is the similarities and differences of the particle motion in solid and liquid
Answers
Answer: Differences: Solids have particles that are tightly packed and they form a pattern. In this case, they move and vibrate in place. On the other hand, liquid particles are close together but they have an irregular arrangement. The spaces between the particles allow them to move freely.
Explanation:
Particles in solids are arranged in a pattern and are closely packed. In this instance, they remain stationary and vibrate. However, despite being close together, liquid particle arrangements are asymmetrical. The particles can travel freely because of the voids between them and the similarity is both solid and liquid has some shape, but gas does the random movement in the container.
What is Particle motion in Solid, Liquid and Gas?In solid the particles are tightly packed with each other, so there will be no such movement by the particles it means that there the particles have very less kinetic energy. Solids have definite shape and size, and they are incompressible in nature, and they are tough and rigid as well.
In liquid the particles are lightly packed with each other due to which there is some movement in the particles it means that the particles have some kinetic energy. The liquids are compressible in nature. They do not have a specific shape, but they can take the shape of a container where it is filled.
Liquids are fluid in nature.
In gases, there is so much of distance between particles due to which the particles do random movement, and they have high kinetic energy. They do not have any shape and size, but they are highly compressible as compared to solid and liquid. They also take the shape of the container where they filled.
To get more information about Particle motion :
https://brainly.com/question/11155407
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(v) Which of the following is
responsible for wearing out of bicycle
tires?
(a) Muscular force
(b) Magnetic force
(c) Frictional force
(d) Electrostatic force
Answers
Should the practice of lining waterways with concrete continue?
Answers
Answer:
Yes, the practice of lining waterways with concrete should continue.
Explanation:
These concrete linings create more laminar flow along the waterways, and in turn, this can reduce erosion. When erosion is reduced, this prevents damage to homes and roads, and loss of land.A fast car (Car A) and a slow car (Car B) both travel the same distance. Which car takes more time to do this? Explain.
Answers
Answer:
Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance.Jan 15, 2020 whhdbd dhd dvd s bs sbs shs shs sh s
Explanation:
avsvsyxsgzvs zvx shs dhx xbx dhd dvd dj
Explain how do global winds impact weather in an area?
Answers
Answer:
As the warmer air over the equator rises, colder air from the poles rushes toward the equator to take its place. Global winds push air masses around Earth and bring changes in the weather. In the United States, global winds called the prevailing westerlies push air masses from west to east.
Explanation:
Answer:
As the warmer air over the equator rises, colder air from the poles rushes toward the equator to take its place. ... Global winds push air masses around Earth and bring changes in the weather. In the United States, global winds called the prevailing westerlies push air masses from west to east.
Explanation:
Which force keeps an object moving in a circle? centripetal force fluid friction inertia momentum
Answers
Answer:
Any object moving in a circle (or along a circular path) experiences a centripetal force. That is, there is some physical force pushing or pulling the object towards the center of the circle. This is the centripetal force requirement.
Explanation:
Which strategies maximize recovery following an intense bout of resistance training?
(Select all that apply.)
replenishing low blood sugar with carbohydratesreplenishing low blood sugar with carbohydrates , ,
stretching muscle groups, holding each stretch for 30 seconds or morestretching muscle groups, holding each stretch for 30 seconds or more , ,
allowing muscle groups 8–12 hours of rest before training againallowing muscle groups 8–12 hours of rest before training again , ,
drinking 20–24 ounces of water for every pound of body mass lostdrinking 20–24 ounces of water for every pound of body mass lost , ,
Answers
Answer:
The answers are:
a) drinking 20–24 ounces of water for every pound of body mass lost,
b) stretching muscle groups, holding each stretch for 30 seconds or more, and
c) replenishing low blood sugar with carbohydrates
Explanation:
I just took the exam and got this correct.
(ii) Describe how the acceleration of the train at time t = 100 s differs from the acceleration
at time t = 20 s.
Answers
Explanation:
Acceleration is the rate of change of velocity with time. When acceleration increases a body moves a faster velocity.
In the graph acceleration at time t= 100s is rapidly increasing. At t = 20s, the acceleration of the body is getting started up.A vehicle at time 100s will have a faster velocity compared to one at t = 20s
Science ck-12 green house effect
Answers
Answer:
what about it i need more info
Explanation:
Show the mathematical equation for
calculating the number of Neutrons an
atom has using its Atomic Number and
Atomic Mass
Answers
Answer:
ysyywhwywywyyeueueuwieheheuhrr9
*thats a minus sign*
All you do is subtract atomic number from the atomic mass and you will find the number of neutrons in an atom.
Have a good day
SOMEONE PLEASE PLEASE HELP PLEASE PLEASE HLEP
What is the equation for work?
Work = force + distance
Work = force / distance
Work = force - distance
Work = force * distance
Answers
Answer:
I believe it's work=force*distance
In a series circuit, an ammeter shows the current leaving the positive end of a cell is 0.5A. What current flows into the negative end of the cell?
Answers
Answer:
0.5A as in a series circuit the current is the same everywhere
Explanation:
What if the frequency is now increased to f = 69 Hz, and we want to keep the impedance unchanged? (A) What new resistance should we use to achieve this goal? R = Ω (B) What is the phase angle (in degrees) between the current and the voltage now? ϕ = ° (C) Find the maximum voltages across each element.
Answers
Complete Question
A series RLC circuit has R = 405 Ω, L = 1.40 H, C = 3 µF. It is connected to an AC source with f = 60.0 Hz and ΔVmax = 150 V. What if the frequency is now increased to f = 69 Hz, and we want to keep the impedance unchanged? (A) What new resistance should we use to achieve this goal? R = Ω (B) What is the phase angle (in degrees) between the current and the voltage now? ϕ = ° (C) Find the maximum voltages across each element.
Answer:
A
[tex]R = 513.9 \ \Omega[/tex]
B
[tex]\theta = 34.79^o[/tex]
C
[tex]V_c =212.96 \ V[/tex] , [tex]V_L = 168.139 \ V[/tex] , [tex]V_R = 142.35 \ V[/tex]
Explanation:
From the question we are told that
The resistance is [tex]R = 405 \ \Omega[/tex]
The inductance is L = 1.40 H
The capacitance is [tex]C = 3 \mu F = 3 *10^{-6} \ F[/tex]
The original frequency is [tex]f = 60 \ Hz[/tex]
The new frequency is [tex]f_1 = 69 \ Hz[/tex]
Generally the reactance of the inductor is mathematically represented as
[tex]X_L = 2 \pi * f * L[/tex]
=> [tex]X_L = 2 * 3.142 * 60 * 1.40[/tex]
=> [tex]X_L = 527.5 \ \Omega[/tex]
Generally the reactance of the capacitor is mathematically represented as
[tex]X_c = \frac{1}{2 \pi * f * C}[/tex]
[tex]X_c = \frac{1}{2 * 3.142 * 60 * 3*10^{-6}}[/tex]
=> [tex]X_c = 884.6 \ \Omega[/tex]
Generally the impedance of the circuit is mathematically represented as
[tex]Z = \sqrt{[X_L - X_c ]^2 + R^2}[/tex]
=> [tex]Z = \sqrt{[527.5 -884.6 ]^2 + 405^2}[/tex]
=> [tex]Z = 540 \ \Omega[/tex]
Generally when the frequency is changed , the reactance of the inductor becomes
[tex]X_L' = 2 * 3.142 * 69 * 1.4[/tex]
=> [tex]X_L' = 607 \ \Omega[/tex]
Generally when the frequency is changed , the reactance of the capacitor becomes
[tex]X_c' = \frac{1}{2 * 3.142 * 69 * 3*10^{-6}}[/tex]
=> [tex]X_c ' = 768.8 \ \Omega[/tex]
Generally the new resistance is mathematically represented as
[tex]R ^2 = Z^2 - ( X_c' - X_L')^2[/tex]
=> [tex]R ^2 = 540^2 - ( 603 - 768.8 )^2[/tex]
=> [tex]R = \sqrt{264110.4}[/tex]
=> [tex]R = 513.9 \ \Omega[/tex]
Generally the phase angle is mathematically represented as
[tex]\theta = tan^{-1}[\frac{[X_L - X_C]}{R} ][/tex]
=> [tex]\theta = tan^{-1}[\frac{[ 884.6 - 527.5]}{513.92} ][/tex]
=> [tex]\theta = 34.79^o[/tex]
Generally the maximum current flowing through the circuit is mathematically represented as
[tex]I_{max} = \frac{\Delta V}{ Z}[/tex]
=> [tex]I_{max} = \frac{150}{540 }[/tex]
=> [tex]I_{max} = 0.2778 \ A[/tex]
Generally the maximum voltage across the capacitor is
[tex]V_c = I_{max} * X_c'[/tex]
[tex]V_c = 0.2778* 768.8[/tex]
=> [tex]V_c =212.96 \ V[/tex]
Generally the maximum voltage across the inductor is
[tex]V_L = I_{max} * X_L[/tex]
[tex]V_L = 0.2778* 607[/tex]
=> [tex]V_L = 168.139 \ V[/tex]
Generally the maximum voltage across the resistor is
[tex]V_R = I_{max} * R[/tex]
[tex]V_R = 0.2778* 513.9[/tex]
=> [tex]V_R = 142.35 \ V[/tex]
Can you help me with this pls
Answers
Answer:
Can you help me with this pls
Anna is sitting in a moving cart and throws a ball straight up. Theoretically, the ball should land in the cart, but it lands on the ground a little before the cart. What is the reason for the difference in the ranges of the ball and the cart?
Answers
Answer:
Reason for the difference in the ranges of the ball and the cart:
"the average speed of the cart is less than the instant speed of the cart at the time of throwing the ball".
Explanation:
Assuming that the air friction is negligible.
Given that the ball lands on the ground a little before the cart.
So, the range of the ball is more than the range of the cart in the same time interval.
Let the instant speed of the cart is v m/s at the time of throwing the ball in the vertically upward direction, so the speed of the ball in the horizontal direction = v m/s.
Let t be the total time of flight of the ball.
As the gravitational force is acting in the downward direction so it will not change the horizontal velocity of the ball.
So, the range covered by the ball [tex]= vt[/tex] m.
Let u be the average speed of the cart for the time t s (same as the time of flight of ball).
So, the distance by the cart [tex]= ut[/tex] m
As the range of the ball is more than the range of the cart in the same time interval, so
[tex]vt > ut \\\\\Rightarrow v>u.[/tex]
So, the reason for the difference in the ranges of the ball and the cart is "the average speed of the cart is less than the instant speed of the cart at the time of throwing the ball".
A football is kicked at ground level with a speed of 17.0 m/s at an angle of 40.0º to the horizontal. How much later does it hit the ground and what is its maximum height?
Answers
Answer: well...
Explanation: Suppose you walk 18.0 m straight west and then 25.0 m straight north. Show that the order of addition of three vectors does not affect their sum . launched at ground level with an initial speed of 50.0 m/s at an angle . (b) What is the maximum height reached by the arrow along its .
Electrons have a mass of about _____.
A. 2,000 times that of a neutron
B. 1/2,000 that of a proton
C. the same as a neutron
D. the same as a proton
Answers
Answer:
B. 1/2,000 that of a proton
Explanation:
the mass of an electron is 9.1093837015 × 10−31 kg, this in only 1/2,000 that of a proton.
Answer:
D. the same as a proton
Explanation:
um just trust me lol
help ASAP
A golf ball is sitting still on the grass three feet from the hole. Which statement describes the golf ball's motion? * The golf ball has a constant velocity. The golf ball is accelerating.
Answers
Answer:
The golf ball has a constant velocity
Explanation:
Can someone plz check if what I typed is good :)
An Earthquake has caused this, I know this because of the rubble. I know it's not a tornado or something similar because this building has collapsed, not blown away neither has it been lifted a few feet from where it used to be and the building next to it is damaged but still standing. Many earthquakes that are violent enough have the power to make buildings collapse, because of the vibration of the ground. Earthquakes are usually caused when rock underground suddenly breaks along a fault. So an earthquake is actually the result of sudden releases of high energy that take place from the crust of Earth. Since an earthquake leads to travelling waves of high intensity, such waves can easily give a jolt or shock to any building. So in conclusion I think an earthquake caused this in the picture because many earthquakes that are violent enough have the power to make buildings collapsed, because of the vibration of the ground.
Answers
Answer:
Explanation:
A car travels 28.0 km on a road that is 16.5 degrees east of north. What are the horizontal and vertical components of its displacement?
Answers
Answer:
no se ve bien pana
Explanation:
Throwing a ball with more force to increase acceleration is an example of which of Newton’s Laws?
Answers
Answer:
Its the 2nd law of motion
Explanation:
Because it talks about force and acceleration
Throwing a ball with more force to increase acceleration is an example of Newton’s 2nd law of motion.
What is Newton's second law of motion?The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.Newton’s second law states that the acceleration of an object depends upon two variables – the net force acting on the object and the mass of the object. The acceleration of the body is directly proportional to the net force acting on the body and inversely proportional to the mass of the body. This means that as the force acting upon an object is increased, the acceleration of the object is increased. Likewise, as the mass of an object is increased, the acceleration of the object is decreased.To learn more about Newton’s second law, refer to: https://brainly.com/question/19030143
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what factors limit the accuracy of a potentiometer and what was the objective of reversing the terminals of the cell
Answers
Explanation:
"The accuracy of a potentiometer can be increased by decreasing the potential gradient across the potentiometer wire, and this can be achieved by increasing the length"
The factors that are affecting/limiting the accuracy of the potentiometer are:
The specific resistance of the material of the potentiometer wire.The potential gradientThe current passing through the potentiometer wire. Area of a cross-section of the wire Internal temperature.
The objective of reversing the terminals of the cell
If the jockey of the potentiometer is pressed for a long time, joule heating sets in, so that reversing the terminals of the potentiometer will prevent the resistance due to joule heat from being added to the measured resistance, ultimately preventing unwanted resistance
A dog barks to alert his owner. What is the medium for the sound waves produced by the dog barking?
Answers
Answer:
The medium for the sound waves produced by the dog barking is the air
Explanation:
Sound waves are a form of mechanical waves such that it moves from one point to another by the vibration, back and forth of the medium particles from one layer to the next, thereby the particles of the medium remain in the same location and only the wave energy is propagated
The medium which has particles that vibrate back and forth in order to transmit the barking of the dog is the air.
Which statement best describes the importance of joints in the roadways of Bridges ?
a. Joints strengthen the roadway to support cars and trucks
b. Joints allow the roadway to expand and
contract with varying outside temperatures
c. Joints allow the roadway to expand and contract as cars put force on the bridge
d. Joints allow the bridge to be built in smaller, easier to assemble pieces.
Answers
a man of mass 50 kg climbs up stairs each of height 0.2 m in 20 seconds .calculate the power of the man
Answers
You can use this to find the work
U
W=mgh
And the power by
P=W/T
In a science fiction movie, when a spaceship explodes the vibrations destroy a nearby spaceship *
a)The script is fine as written
b)Rewrite the script since sound cannot travel in a vacuum
c)No one is actually in space to hear the sound
d)There is no energy in a sound wave so no explosion
Answers
Answer:
d
Explanation:
The diagram shows a box in the periodic table. 14 Si Silicon 28.1 What is the atomic mass of the element shown? O A. 14 B. 56 o C. 281 D. 42.1
Answers
Answer:
28.1
Explanation:
The number 14 is it's atomic number, the Si is the atomic symbol, and 28.1 is the atomic mass.
Hope this helps!
Answer:
28.1
Explanation:
got it correct on my test.
