A tank is in the shape of an inverted cone, having height h = 3.31 m and base radius r = 0.799 m. of water is poured into the tank at a rate of 11.8 m/s.
It take to fill the tank
Using the similarity of triangles,
[tex]\frac{0.799}{r} =\frac{3.31}{h} \\r=0.241h[/tex]
Volume of water tank
[tex]V=\frac{1}{3} \pi r^2h\\V=\frac{1}{3} \times 3.14\times (0.241h)^2\times h\\V=0.0608h^3[/tex]
in the description of the features for a new car model it says that it can reach a maximum speed of 180 km/h. If it moves at that speed, how far will the car travel in 3 h?
If it moves at given speed, the car travels, d = 540 km in 3 hours.
Equation :s = d / t
where,
s is speed
d is distance
t is time
So given data are :
s = 180km/h
t = 3 hour
d = ?
Now putting values,
speed = distance / time
180km/h = d / 3 h
d = 180 km/h x 3 h
d = 540 km
Speed :A scalar quantity, speed is defined as the size of the change in an object's position over time or the size of the change in an object's position per unit of time. Speed is calculated as Distance x Time. Time is calculated as Time = Distance / Speed. Distance is calculated as Distance = Speed x Time.
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A caiman swims 190 meters at a speed of 10 m/s. it then enters a stream and slows to 2 m/s for 270 meters. what is the average speed of this cousin of the crocodile? quizlet
A caiman swims 190 meters at a speed of 10 m/s and it then enters a stream and slows to 2 m/s for 270 meters and then the average speed of this cousin of the crocodile is 2.98 m/s.
What is the speed on average?The overall distance the object covers in a given amount of time is its average speed.
A scalar value represents the average speed thus it means that it has no direction and is thus by the magnitude.
How are average speeds determined?The distance travelled is divided by the time taken and it is the formula for calculating average speed.
The alternative formula is to add into the initial and final speeds altogether and divide by two if you have the values.
Give an example of average speed.The entire distance travelled is then divided by the total time interval to determine the average speed.
d1 = 190m
d2 = 270m
v1 = 10m/s
v2 = 2m/s
average speed = total distance/total time
t1 = 190/10 = 19s
t2 = 270/2 = 135s
so average speed = (190+270)/ (19+135)
= 460/154
=2.98 m/s
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A commuter backs her car out of her garage with an acceleration of 1.66m/s2.
a) How long does it take her to reach a speed of 2.28m/s?
b) If she then brakes to a stop in 0.86s, what is her acceleration?
The time taken by her to reach a speed of 2.28m/s is 1.37 s whereas, the acceleration on break to stop in 0.86s is 4.47 m/s².
Equation :( a ) To find the time we use the formula,
a = Δv / Δt
where,
a is acceleration,
Δv is change in speed
Δt is time
So with this putting the given value,
We have,
1.66m/s² = 2.28m/s / Δt
Δt = 2.28m/s / 1.66m/s²
Δt = 1.37 s
( b ) Again using same formula for acceleration
a = Δv / Δt
So,
a = 2.28m/s / 1.37 - 0.86s
a = 2.28m/s / 0.51 s
a = 4.47 m/s²
What is acceleration and velocity?The rate of change of displacement is known as velocity. The rate at which velocity changes is called acceleration. Due to the fact that it includes both magnitude and direction, velocity is a vector quantity. As the rate at which velocity changes, acceleration is also a vector quantity.
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(a)The time has taken by a commuter to reach a speed of 2.28m/s is (t)= 1.37 s. (b) If she then brakes to a stop in 0.86s,Theamount of acceleration is (a)= 2.65 m/s².
What is acceleration and velocity?The term velocity defines that how much distance a particle covered in a given time. The term acceleration defines that change in velocity in a particular time.
How can we calculate the value of acceleration and velocity?( a ) To calculate the time we use the formula, v=u+at
As the particle start from rest so, u= initial velocity would be zero.
The equation becomes, v=at
t=v/a
where, we are given
a= acceleration of the car =1.66m/s²,
v= speed of the car= 2.28m/s
We have to calculate the time=t
So now we put the given value in the above equation, We have,
t=v/a
Or, t = 2.28m/s / 1.66m/s²
Or, t = 1.37 s
According to the calculation we can say that, The time has taken by a commuter to reach a speed of 2.28m/s is (t)= 1.37 s
( b ) To calculate the acceleration we use the formula, v=u+at
As the particle start from rest so, u= initial velocity would be zero.
The equation becomes, v=at
a=v/t
where, we are given
v= speed of the car= 2.28m/s
t= The time take to break=0.86 s
We have to calculate the acceleration=a
So now we put the given value in the above equation, We have,
a=v/t
Or, a = 2.28 /0.86
Or, a = 2.65 m/s²
According to the calculation we can say that, If she then brakes to a stop in 0.86s,Theamount of acceleration is (a)= 2.65 m/s²
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How many combinations total would you observe for this individual heterozygous for 3 genes on 3 differnt chromsomes?
It is feasible for a human to be heterozygous for the following gametic combinations if three genes on three distinct chromosomes are involved:
If chromosome 1 is present, the person can create 2 different types of gametes. Regarding chromosome number 2, there are also two types. The resulting equation is:
There are 2n different types of gametes, where n is the total number of chromosomes. So,
2^3 = 8.4X10^6 different gametes.
The thread-like components known as chromosomes are found in the nucleus of both animal and plant cells.
Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA). DNA is passed down from parents to children and contains the precise instructions that give each kind of living thing its individuality.
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which of the five zones shown on the map has the greatest amount of land area suitable for people to live?
I have to get it done right now
The zone in the map that has the greatest amount of land area suitable for people to live is zone B.
What is equator?The equator is the imaginary line that divides the earth horizontally into two equal halves of North and South zones.
The countries that are located close to the equator include the following:
Ecuador, Colombia,
Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati.From the map, the zone with the greatest amount of land area suitable for people to live is the zone closest to the equator which is zone B.
The temperature of these areas are close to moderate through out the year.
The zone B also contains land mass that is part of the largest continent which is Asia.
Therefore, the zone in the map that has the greatest amount of land area suitable for people to live is zone B.
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If a horse weighs 2891 N on earth then what is its mass
Considering the definition of weight, the mass of the horse is 295 kg.
Definition of mass and weightMass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.
The mass of an object will always be the same. Instead, the weight of the object will vary according to the force of gravity acting on it.
Weight is calculated as the product of the object's mass and the value of the gravitational acceleration:
W= m×g
Mass of the horseIn this case, you know:
W= 2891 Ng= 9.8 m/s² gravity of EarthReplacing in the definition of weight:
2891 N= m× 9.8 m/s²
Solving:
m=2891 N÷ 9.8 m/s²
m= 295 kg
Finally, the mass of the horse is 295 kg.
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What is the overall reaction order for the reaction that has the rate law: rate = k[o2] [no ]2?
The overall reaction order for the reaction that has the rate law: rate = k[o2] [no ]2 is 3.
The rate law (also known as the rate equation) for a chemical reaction is an expression that provides a relationship between the rate of the reaction and the concentrations of the reactants participating in it.
Now,
The Rate equation is
Rate= K[A]^m [B]^n
K = Rate constant.
m = order with Respect To A
n = order with Respect To B.
m +n = over all order of Reaction
R = K[NO2]^2 [O2]^1
Overall order = 2+1 =3 .
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[tex] \huge\qquad\underline{{\tt Question : }} [/tex]
How does an induction motor starts ?
[ best answer will get brainliest ]
Answer:
A rotating magnetic field is produced and the rotor begins rotating and the induction motor starts.
Explanation:
[tex]\huge\qquad\underline{{\tt Answer : }} -[/tex]
As the name suggests, the induction motor is started by connecting it directly to three-phase supply. In this method, the motor draws a high starting current (about 4 to 7 times of the rated current) and at low power factor. Therefore, DOL starting is suitable for relatively small motors (up to 10 kW)
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if your parents slam the brakes while they are driving at 22.0 M/S for 2.0 seconds and your new velocity is 14 M/S what acceleration did you experience?
The acceleration experienced is -4 m/s.
Acceleration is the rate of change of an object's velocity with respect to time. Acceleration is a vector quantity. The direction of an object's acceleration is given by the direction of the net force acting on that object. Acceleration is the name we give to the process of changing velocity. Velocity is both speed and direction, so there are only two ways to accelerate.
Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Since acceleration is the rate of change of velocity, it is also a vector quantity.
initial velocity = 22.0 M/S
final velocity = 14 m/s
time to change the velocity = 2 second
v = u + at
at = u - v
a= - [tex]\frac{u - v}{t}[/tex]
a = - [tex]\frac{22 -14}{2}[/tex]
a = -8/2
a = -4 m/s
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if a distance vs time graph is a vertical line, how would the velocity vs time graph look?
The sprinter's changing speed, as well as the speed of any other moving object or person, is displayed on a velocity-time graph. The slope of the graph line on a velocity-time graph is used to represent acceleration.
What is meant by acceleration?Velocity's rate of change with time, both in terms of speed and direction. A point or object going straight ahead is accelerated when it accelerates or decelerates. m/s2 is the unit of acceleration. The term "constant acceleration" refers to the pace at which a particle's velocity changes.
Which four forms of acceleration are there?Uniform Acceleration. Non uniform acceleration. Instantaneous Acceleration. The slope of the time-velocity graph determines the rate of acceleration.To know more about acceleration visit:
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A calculator is found to have a volume of 0.154 liters show using analysis what the volume of the calculator is in gallons?
The volume of 0.154 liters expressed in gallons is: 0,0406 gallons
To solve this problem the we have to do the conversion of units with the given information.
Information about the problem:
v = 0.154 litersv = expressed in (gallons) = ?1 gallon = 3.785 litersBy converting the volume units from (liters) to miles per hour (gallons) we have:
v = 0.154 liters * 1 gallon/3.785 liters
v = 0,0406 gallons
What is unit conversion?It is the transformation of a value expressed in one unit of measurement into an equivalent value expressed in another unit of measurement of the same nature.
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SI units for mass length and tempature
Answer: GoodMorning: ) ✨
kilogram (kg)
The SI unit of mass is the kilogram (kg).
Explanation:
Hope this helps: )
A physics student drops a vibrating 440-hz tuning fork down the elevator shaft of a tall building. when the student hears a frequency of 400 hz, how far has the tuning fork fallen?
1. The speed of the source is 34m/s, using Doppler effect.
2. The location of the source at that time ([tex]t_{1}[/tex]) is 3.466s.
3. The time ([tex]t_{2}[/tex]) for sound to travel 58.92 m is 0.173s.
4. Tthe distance the source has fallen in time ([tex]t_{1} + t_{2}[/tex]) is 65m.
A wave's frequency changes in response to an observer moving in respect to the wave source, which is known as the Doppler effect or Doppler shift. It has the name of Christian Doppler, an Austrian physicist who first reported the phenomena in 1842.
Mathematically it is written as;
[tex]f' = \frac{(v+v_{0}) }{(v -v_{s}) } f[/tex]
1. Using doppler effect,
u = 340(440/440-1) m/s
u = 34m/s
Therefore, the speed of the source is 34m/s.
2. y = [tex]u^{2}[/tex]/2g
y = [tex]34^{2}[/tex]/2×9.8
y = 58.92m
So, [tex]t_{1}[/tex] = u/g (Using u obtained above from Doppler effect)
[tex]t_{1}[/tex] = 34/9.8
[tex]t_{1}[/tex] = 3.466s
Therefore, the location of the source at that time ([tex]t_{1}[/tex]) is 3.466s.
3. [tex]t_{2}[/tex] = 58.92 / 340
[tex]t_{2}[/tex] = 0.173s.
Therefore, the time ([tex]t_{2}[/tex]) for sound to travel 58.92 m is 0.173s.
4. d = [tex]\frac{1}{2}gt^{2}[/tex]
d = [tex]\frac{(9.81)(3.639^{2}) }{2}[/tex]
d = 65m.
Therefore, the distance the source has fallen in time ([tex]t_{1} + t_{2}[/tex]) is 65m.
The complete question is: A physics student drops a vibrating 440-hz tuning fork down the elevator shaft of a tall building. when the student hears a frequency of 400 hz, how far has the tuning fork fallen?
1.Find the speed of the source from Equ. 15-332.
2.Find the location of the source at that time ([tex]t_{1}[/tex])
3. Find the time ([tex]t_{2}[/tex]) for sound to travel 58.92 m.
4.Find the distance the source has fallen in time ([tex]t_{1} + t_{2}[/tex])
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What are 5 sentences describing how a soccer ball sitting still illustrates Newton's First Law?
A ball sitting still on the pitch obeys Newton's first law.
What is the first law of Newton?According to the first law of the Newton, a body would continue to be at rest or in state of uniform motion unless it is acted upon by an external force.
In this case, we have a football that is sitting still on a pitch. This ball is held by the force of inertia and the forces that act on it are balanced. If on the other hand this ball is not kicked (action of eternal force), it would continue to sit still on the pitch.
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An inorganic compound, when placed in water, dissociates 99orming cations and anions neither of which are:______
Neither are Strong acid.
What does “strong acid” mean?In the solution, solid acids entirely separate into ions. For instance, hydrochloric acid is a solid acid.
It totally ionizes, forming hydrogen and chloride ions. Nitric acid and sulfuric acid are also components of strong acids.
A solid or strong acid is one that has completely dissociated into ions. It is a weak acid if it does not dissociate completely.
What is an example of a strong acid?Chloric acid, hydrobromic acid, hydrochloric acid, hydroiodic acid, nitric acid, perchloric acid, and sulfuric acid are the seven major acids that make up strong acids. These are referred to as strong acids since they can totally dissociate in water.
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A light-rail commuter train accelerates at a rate of 1.40 m/s2. how long does it take to reach its top speed of 76.5 km/h, starting from rest?
It takes 15.17s time to reach its top speed.
CalculationVo = 0m[tex]s^{-1}[/tex]
Its top speed v = 76.5 km/h
= 21.25 m/s
acceleration of the train = 1.4 m/[tex]s^{2}[/tex]
Then
V = Vo +at
21.25 = 0+ 1.4t
t = 21.25/ 1.4 = 15.17 s
AccelerationThe rate at which an object’s velocity with respect to time changes is referred to as acceleration in mechanics. They are vector quantities, accelerations.
The direction of the net force applied on the item determines the object’s acceleration.
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Calculate the height of a cliff if it takes 2. 35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8. 00 m/s.
The height of a cliff is 8.26 m
What is the equation of motion?Second Equation of Motion - Derivation s = ut + 1/2 ^2 Derivation × We know that Velocity = / Velocity × Time = Displacement Displacement = Velocity × Time If Velocity is not constant (i.e. Velocity keeps on increasing or decreasing).
We changed this for our required
[tex]y_{0}[/tex] = - [tex]V_{0}[/tex]t - 1/2 ^2 (1)
Now, t = 2.35s
a = -9.8 m/[tex]S^{2}[/tex]
Substitute this value in equation (1)
[tex]y_{0}[/tex] = - [tex]V_{0}[/tex]t - 1/2 ^2
[tex]y_{0}[/tex] = -(8.00m/s) (2.355) - 1/2 (-9.8m/s) [tex]2.35^{2}[/tex]
[tex]y_{0}[/tex] = 8.26 m
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Why do scientists try to replicate and
duplicate a discovery?
Answer:
Replication is vital to science. It helps make science a self-correcting system. Any time a result is surprising, researchers will try to replicate it, to see if the phenomenon is dependable or just a fluke
Explanation:
By measuring the length of the skid marks, an accident investigator determines that the distance a car travelled between the brakes being applied and stopping was 22 m.
The investigator used a sled to determine the friction. The investigator then calculated that the car decelerated at 7.2 m / s2.
Calculate the speed of the car just before the brakes were applied.
Please help, i’m so confused!!
The initial velocity of the car just before the brakes were applied is 17.80 m/s
Given parametersFrom the question given above, the following data were obtained:
Distance (s) = 22 mDeceleration (a) = -7.2 m/s²Final velocity (v) = 0 m/sInitial velocity (u) = ?How to determine the initial velocity of the carThe initial velocity of the car can be obtained as illustrated below:
v² = u² + 2as
0² = u² + (2 × -7.2 × 22)
0 = u² + (-316.8)
0 = u² - 316.8
Collect like terms
u² = 0 + 316.8
u² = 316.8
Take the square root of both side
u = √316.8
u = 17.80 m/s
Thus, we can conclude that the initial velocity of the car before the brakes were applied is 17.80 m/s
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Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. Which of the following are true? Select all that apply.
A. reactivity increases
B. reactivity decreases
C. neon has another shell (energy level, orbit), meaning the atom will be larger
D. sodium has another shell (energy level, orbit), meaning the atom will be larger
E. valence electrons in sodium are farther from the nucleus
F. atomic number 11 does not have a full electron shell.
Moving from the element with atomic number 10 to atomic number 11 on the periodic table, the following which are true include the following:
A. reactivity increases
C. neon has another shell (energy level, orbit), meaning the atom will be larger.
E. valence electrons in sodium are farther from the nucleus
F. atomic number 11 does not have a full electron shell.
What is Periodic table?This is referred to as the tabular arrangement of elements into rows which is referred to as period or column which is referred to as group.
The reactivity increases in this scenario and atomic number 11 does not have a full electron shell because there is one valence electron which means it doesn't have stable octet configuration.
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The maximum current that a 2w, 80 k resistor can safely conduct is:_________
(a) 160 ka
(b) 40 ka
(c) 5 ma
(d) 25 ma
By using power, the maximum current is (c) 5 mA.
We need to know about power to solve this problem. Power is the energy dissipated because of resistance. The magnitude of power is proportional to current and voltage. It can be determined as
P = I . V
where P is power, I is current and V is voltage.
By using Ohm's Law, power also can be calculated using resistance.
P = I² . R
where R is resistance.
From the question above, we know that
P = 2 W
R = 80 kΩ = 80,000 Ω
By substituting the following parameters, we get
P = I² . R
2 = I² . 80,000
I² = 2 / 80,000
I² = 25 x 10¯⁶ A
I = 5 x 10¯³ A
I = 5 mA
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Agatha is in middle school and she sleeps five hours each night and then struggles the next day at school. How many hours of sleep does Agatha need each night?
A.
6
B.
8
C.
10
D.
12
Agatha requires (c) 10 hours of sleep each night.
Children in middle school ideally require average 9-12 hours of sleep each night. If the number of hours of sleep each night is compromised, it will show effect on the concentration and health of the child.
Because sleep is crucial to your physical health, it is crucial that you receive enough of it every night. For instance, your heart and blood arteries are able to recover and repair themselves as you sleep. An increased risk of heart disease, renal disease, high blood pressure, diabetes, and stroke has been related to chronic sleep deprivation. For the brain and body to operate properly the following day, doctors and specialists advise children to receive at least 9 to 12 hours of sleep each night.
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Calculate the power used in the problem above if to took one minute to lift the load.
The power used in the problem above if to took one minute to lift the load is W / 60 Watts
W = F * d
P = W / t
W = Work done
F = Force
d = Distance
t = Time
P = Power
t = 1 min
t = 60 seconds
P = W / 60 ( or ) F * d / t
Power is the work done rate with respect to time. Its unit is Watts. 1 watt = 1 Joule / Second. It is denoted by P.
Therefore, the power used is W / 60 Watts
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FAST HELP PLS
Which equation represents how the kinetic energy (KE) of a system relates to its gravitational potential energy (GPE) and total mechanical energy (ME)?
A.
KE = ME + GPE
B.
KE = GPE × ME
C.
KE = GPE - ME
D.
KE = ME - GPE
The equation represents how the kinetic energy (KE) of a system relates to its gravitational potential energy (GPE) and total mechanical energy (ME) is: KE = ME - GPE; option D
What is the law of the conservation of energy?The law of conservation of energy states that in a system, the total energy is conserved. This means that energy is nether created nor destroyed but can be transformed from one form to another.
The total mechanical energy in a system is composed of two parts:
gravitational potential energy, and kinetic energy
Mathematically;
Mechanical energy, ME = gravitational potential energy GPE + kinetic energy KEThus the equation represents how the kinetic energy (KE) of a system relates to its gravitational potential energy (GPE) and total mechanical energy (ME) is KE = ME - GPE
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What must the charge (sign and magnitude) of a 1.45 gg particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 530 n/cn/c ?
The charge on the particle must be 2.68 x 10^5 C.
Electric force and Force of gravity
The given mass of the particle, m = 1.45 g = 0.00145 kg
Acceleration due to gravity = 9.8m/s²
Electric field strength, E = 530 N/C
The electric force on the particle is therefore given by;
F = qE, where,
q =charge,
F= force = mg
E is the electric field
For a particle to be stationary this force must be equal to force due to gravity, that is mg force
Hence, qE = mg
q = mg/E.
q = (0.00145 ×9.8)/530
The charge on the particle is, therefore; 2.68 x 10^5 C.
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The North American and European continents are moving apart at a rate of about 3 cm/y. At this rate how long will it take them to drift 480 km farther apart than they are at present?
It will take them 16000000 years to drift 480 Km apart
What is Rate?In this context, rate is defined as distance per unit time Mathematically, it can be expressed as:
Rate = distance / time
How to determine the time taken to drift 480 Km apartFrom the question given, the following data were obatined:
Rate = 3 cm/yDistance = 480 Km = 480 × 100000 = 48000000 cmTime =?The time taken to drift can be obtained as follow:
Rate = distance / time
3 = 48000000 / time
Cross multiply
3 × time = 48000000
Divide both side by 3
Time = 48000000 / 3
Time = 16000000 years
Thus, it will take 16000000 years to drift 480 Km apart
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A rectangular field in a park is 58.5 ft wide and 114 ft long. what is the area of the field in square meters?
By unit conversion, the area of rectangular field park is 619.59 m².
We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as
a = xb
where a is unit a, b is unit b and x is the constant of conversion.
From the question above, we know that
w = 58.5 ft
l = 114 ft
Convert the width and length to meter (1 ft = 0.3048 m)
w = 58.5 ft
w = 58.5 x 0.3048 m
w = 17.83 m
l = 114 ft
l = 114 x 0.3048 m
l = 34.75 m
Find the area
A = w x l
A = 17.83 x 34.75
A = 619.59 m²
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Complete combustion of 5.20 g of a hydrocarbon produced 16.6 g of co2 and 5.95 g of h2o. what is the empirical formula for the hydrocarbon? insert subscripts as necessary.
When a hydrocarbon (CxHy) burns, CO₂ and H₂O are produced. C₄H₇ is the empirical formula.
moles of carbon in the mixture: 44 g x 1 mol C/mole/27.8 g CO₂ x 1 mol CO₂ in the compound, CO₂ equals 0.632 moles of C and 0.632 moles of H. 9.96 g H₂O times 1 mol H₂O and 18.g H₂O times 2 mol H/mol H2O equal 1.11 moles of H.
Total mass equals 8.69g (close enough to 8.70 so our assumption of no oxygen is correct)
We can divide both by the lowest value (0.632) to arrive at the lowest whole number of moles.
..
1.0 moles = 0.632/0.632 moles of C. H = 1.11/0.632=1.75
Now we can multiply both by 4 to get H as a whole number.
..
Molecules C = 4 Molecules H = 7
Empirical equation: C₄H₇
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What is the dominant intermolecular force that determines the solubility of the amine hydrochloride salt of ethyl 4-aminobenzoate in water?
Amine hydrochloride salt of ethyl amino benzoate will be ionic in nature
water is polar in nature so ion-dipole Will be dominant intermolecular force what is intermolecular force?The forces that draw atoms, molecules, and ions together when they are positioned near to one another are referred to as "Intermolecular forces."This differs from Intramolecular forces, similar term for the covalent bonds that exist inside molecules.A positive (+) charge on one particle is drawn to a negative (-) charge on the other particle when two particles interact through an intermolecular interaction.Atoms, molecules, or ions are strongly attracted to one another and move toward one another when intermolecular interactions are high. These are more frequently encountered in states that are condensed, like liquid or solid.Atoms, molecules, or ions do not have a significant attraction to one another and move widely apart when intermolecular interactions are weak.To know more about intermolecular force visit:
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The correct question is:
What is the dominant intermolecular force that determines the solubility of the amine hydrochloride salt of ethyl 4-aminobenzoate in water?
a)ion-ion
b)ion-dipole
c)London dispersion
d)hydrogen bonding
Assume you have three resistors, r1 = 5 w, r2 = 10 w, r3 = 15 w. you connect them in parallel. what would be the equivalent resistance of the combination?
The equivalent resistance of the combination is 30ohms
When two nodes share terminal connections, resistors are said to be in parallel. The smallest parallel resistor is smaller than the equivalent overall resistance. To find the equivalent resistance, after adding the reciprocal values together, take the reciprocal once more.
So, [tex]\frac{1}{R} = \frac{1}{R_{1} } +\frac{1}{R_{2} } +\frac{1}{R_{3} }[/tex]
[tex]\frac{1}{R} = \frac{1}{5} } +\frac{1}{10} } +\frac{1}{15} }[/tex]
[tex]\frac{1}{R} = \frac{1}{30} }[/tex]
R = 30 ohms
Therefore, the equivalent resistance of the combination is 30ohms.
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