The purpose of this experiment is to understand series and parallel circuits, how to calculate their equivalent resistance, and how to construct the laboratory.
How do parallel circuits function?There are two or more paths that current to travel through in a parallel circuit. Each element of the parallel circuit has the same voltage applied to that too. The total current flowing from the source is equal to the sum of a currents through each path.
What is a parallel circuit example?When one route is blocked, electricity continues to flow thanks to a parallel circuit. Numerous lighting fixtures are a great example. Even if just one light in the fixture fails, led light stays on.
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a particle of charge q and mass m is accelerated from rest through a potential difference v, after which it encounters a uniform magnetic field b. if the particle moves in a plane perpendicular to b, what is the radius of its circular orbit?
The radius of its circular orbit is calculated to be 1/B √(2qV/m)
If the field is vacuum, then the magnetic field is dominant factor determining the motion. As the magnetic force is perpendicular to the direction of travel, a charged particle follows a curved path in a magnetic field. The particle then continues to follow curved path until it forms a complete circle. As the magnetic force is perpendicular to velocity, so that no work is done on the charged particle. The kinetic energy of the particle and speed remain constant. The direction of motion is usually affected but not the speed.
The speed of particle just before entering into magnetic field is v₀
qV = 1/2*m *v₀²
v₀= √(2qV/m)
Radius of the circular path is given by
r= mv₀/qB
r=m/qB √(2qV/m)
=1/B √(2qV/m)
Radius of circular orbit = 1/B √(2qV/m)
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A stone of 0.5 kg mass is thrown with 5 m/s. Find the kinetic energy of the stone.
Answer
the answer is 6.25
Explanation:
Here, the mass of the stone (m) = 0.5 kg, velocity at which it is thrown (v) = 5 m/s, The kinetic energy of the stone (KE) =? We have, Kinetic energy of the stone (KE) = \ (\frac12mv^21) = \(\frac120.5\times5^2\) = 6.25 Joules Hence, the kinetic energy of the stone (KE) is 6.25 joules. Hope it will be helpful
You will get brainlist!
Ms. Garcia's science students are studying scale models. For her science project, Sarah has decided to make a scale model of the solar system. She is using the model you see here as inspiration. She plans to use this as her starting point and add the remaining planets in the correct orbits around the Sun. What advise would you give Sarah before she begins her solar system model?
A.) This model does not show the correct scale for the sun
B.) In order to make an accurate scale model, Sarah should use a much larger Sun before adding the planets in the correct order.
C.) The model does not illustrate that the Sun is the center of the solar system.
D.) The model's scale for the size of the objects and the distance between the Sun and Earth are incorrect.
THIS MODEL DOES NOT SHOW THE CORRECT SCALE FOR THE SUN
Select the correct answer.
Read the excerpt from paragraph 2.l
(2)... And we celebrate how, with their overwhelming vote to confirm Justice Sotomayor, the United States Senate
Republicans and Democrats tore down yet one more barrier and affirmed our belief that in America, the doors of
opportunity must be open to all.
Why is it relevant to include the detail that both Democrats and Republicans approved Sonia Sotomayor's nomination?
-
O A.
It confirms the ideal of American principles when people from different groups join together for a common
goal.
OB.
It affirms that they all knew her exceptional life story and therefore wanted to help her fulfill her aspirations.
O C.
It emphasizes that Sonia Sotomayor inspired so many people across America with her extraordinary
achievements.
O D.
It draws a parallel between the founding fathers and the Senators who all were committed to breaking down
barriers.
Answer:
the answer is A
Explanation:
I took the test
Answer:
A
Explanation:
What’s The difference between oxygen and water.
100 POINTS
a horizontal force of 150 n is used to push a 41.0-kg packing crate a distance of 6.15 m on a rough horizontal surface. if the crate moves at constant speed, find each of the following.
URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS Which statement is true about the relationship between energy and temperature?
A. As energy increases, temperature also increases
B. As temperature increases, energy remains the same.
C. As energy increases, the temperature remains the same.
D. As energy increases, temperature decreases.
Answer:
A
Explanation:
because both energy and temperature ️ increase both are related.
a 1.83 kg book is placed on a flat desk. suppose the coefficient of static friction between the book and the desk is 0.562 and the coefficient of kinetic friction is 0.305 .
Answer: the force required to begin moving the book is 7.93 N.
Explanation:The concepts required to solve this problem is forces.
Initially, calculate the force required to begin moving the book by using the expression for the static frictional force. Later, calculate the force required to keep the book moving by using the expression for the kinetic friction.
Here,
is the coefficient of static friction and N is the normal force.
Here,
is the coefficient of kinetic friction and N is the normal force.
Step: 1
The expression for the force required to begin moving the book is,
The normal force acting on the book ,
Substitute mg for N in the equation
.
Substitute 0.442 for
, 1.83 kg for m,
for g in the above equation.
Therefore, the force required to begin moving the book is 7.93 N.
Explanation:
The external force is required to move the book on the surface of the desk is known as static frictional force.
The forces acting on the book along the y direction is,
By using Newton’s second law of motion the net forces acting along y direction is,
As the book is along the x direction means that there is no motion of the book along the y direction. Hence the acceleration of the book is equal to zero.
Now the normal force is equal to the weight of the book.
Hint:
Calculate the force required to keep the book moving by using the expression for the kinetic friction.
Step: 2
The force required to keep the book moving ,
The normal force acting on the book ,
Substitute mg for N in the equation
.
Substitute 0.240 for
, 1.83 kg for m,
for g in the above equation.
Therefore, the force required to keep the book moving is 4.30 N.
The kinetic frictional force acts on the object if the object is in motion.
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If a 1.83 kg book is placed on a flat desk, 10.089 N of force is required to start moving the book. If the book and desk experience static friction of 0.442 and kinetic friction of 0.240, respectively.
A force that acts between moving surfaces is referred to as kinetic friction. A force acting in opposition to the direction of a moving body on the surface is felt. The two materials' coefficient of kinetic friction will determine how much force is applied.
The book needs force to move
Ff = N * s Ff = (1.83 kg)(9.81 m/s2)(0.562)=10.089 N
The book needs force to continue.
Ff = (1.83 kg) (9.81 m/s2) (0.305) = 5.47 N
The force that prevents a sliding object from moving is known as friction. Everything has kinetic friction, which prevents two or more objects from moving in unison. In contrast to how an object would like to slide, the force operates in that direction. When a car needs to stop by kinetic friction, we engage the brakes, and that's when friction is created. Again, friction is to blame when one wishes to stop abruptly while walking. however, when we are forced to stop in the middle of a puddle.
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A car moves at 6 m/s for 3 seconds. How far does the car travel?
Answer:
18 m
Explanation:
Velocity = distance / time
v = d/t
d = vt
d = (6 m/s) (3 s)
d = 18 m
Hope that helps
write the equation used to calculate required fastener torque as a function of desired preload and bolt size. then, explain how fastener grade and tpi affect the required preload.
The equation used to calculate required fastener torque as a function of desired preload and bolt size is τ = K D [tex]F_{i}[/tex].
τ = K D [tex]F_{i}[/tex]
[tex]F_{i}[/tex] = σ[tex]_{t}[/tex] * A[tex]_{t}[/tex]
σ[tex]_{t}[/tex] = 0.9 * σ[tex]_{y}[/tex]
τ = Torque
K = Torque co-efficient
D = Nominal bolt diameter
[tex]F_{i}[/tex] = Desired preload
σ[tex]_{t}[/tex] = Tensile stress
A[tex]_{t}[/tex] = Tensile stress area
σ[tex]_{y}[/tex] = Ultimate yield strength
As the fastener grade increases, the required preload also increasesAs the TPI ( Threads per Inch ) increases, the required preload also increasesTherefore, the equation used to calculate required fastener torque as a function of desired preload and bolt size is τ = K D [tex]F_{i}[/tex].
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The density for manganese is 7.47 g/cm3. What would be the mass of a 40 cm3 piece of manganese?
Answer:
298.8g
Hope this helps! :)
A fireman d = 48.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of i = 24.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose is vi = 40.0 m/s, at what height will the stream of water strike the building?
The height at which the stream of water strike the building is 12.9 m.
What is the time of motion of the water?
The time of motion of the stream of water is calculated as follows;
X = Vₓt
where;
Vₓ is the horizontal speed of the stream of watert is the time of motion of the stream of waterX is the horizontal distance travelled by the stream of waterSubstitute the given parameters and solve for time of motion of the water,
t = X/Vₓ
t = (48 m) / (40 x cos24)
t = 1.31 seconds
The height reached by the stream of water is calculated as follows;
h = Vyt - ¹/₂gt²
where;
Vy is the initial vertical velocity of the stream of watert is the time of motiong is acceleration due to gravitySubstitute the given parameters and solve for the height reached by the stream of water
h = (40 x sin24)(1.31) - ¹/₂(9.8)(1.31)²
h = 12.9 m
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Identical balls are dropped from the same initial height and bounce back to half the initial height. In case 1 the ball bounces off a cement floor and in case 2 the ball bounces off a piece of stretchy rubber.
The change in momentum of the ball will be biggest in Case 1.
The change in momentum of the ball will be highest in the case 1, where the ball bounce back to it's half the initial height after the collision with the cement floor.
When the ball hits the cement floor, the time of contact between ball and the floor is the very very less. This is why the force imparted by the cement floor on the ball will be very high.
The impulse I imparted on the ball by floor is.
I = ∆F/∆t
As the force is very high and the time of contact is very less. The impulse will be very high. And as we know from the impulse momentum theorem. The impulse is equal to the change in momentum.
So the change in momentum will be biggest in case 1.
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Complete question - Identical balls are dropped from the same initial height and bounce back to half the initial height. In case 1 the ball bounces off a cement floor and in case 2 the ball bounces off a piece of stretchy rubber. In which case is the change in momentum of the ball between the instant just before the ball collides with the floor or rubber and the instant just after the ball leaves the floor or rubber the biggest?
Case 1
Case 2
Same in both
A chemical reaction takes place in which energy is released. Arrange the reaction’s characteristics in order from start to finish.
If energy is released in a chemical reaction, the order of reaction’s characteristics from start to finish are higher energy of reactants → transition state → lower energy of products
When two or more two molecules interact with each other and undergo certain chemical changes, a chemical reaction occurs. Chemical reaction results in changes in the chemical properties of the reactants.
There are two types of chemical reactions involving energy. If energy is absorbed during the reaction it is called as Endothermic reaction. If energy is released during the reaction it is called as Exothermic reaction.
Therefore, the order of reaction’s characteristics from start to finish are
Higher energy of reactants
↓
Transition state
↓
Lower energy of products
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if a wooden box and a steel box with identical shapes are holding under water, the wooden box tends to float when released but the steel box sinks. this is because the buoyant force experiences by the wooden box is larger than that experiences by the steel box.
The buoyant force is same for both boxes. Steel box sinks because its density is higher than water and the density of wood is lower than water.
An object that is fully or partially submerged in a fluid will experience an upward push called the buoyant force. Another name for this upward thrust is up thrust. An object's propensity to float in a fluid is known as buoyancy. Any object submerged in a liquid or gas experiences an upward force known as the buoyant force when there is gravity present.
When an object is submerged in a static fluid, pressure differences acting on its opposing sides provide buoyancy. water density is less. After reading this article, you will be able to describe the buoyant force and the rationale behind why fluids push submerged things higher. Let's discuss the definition of buoyancy and its various manifestations.
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A baseball with a mass of 145 g is pitched to a batter. The ball accelerates at 10 m/s?. What is the net force?
Answer:
1.45 N
Explanation:
Newton's Second Law: F=ma
Convert 145 grams to kilograms
0.145kg*10m/s^2
1.45 N
Write a journal entry for a person living in the world where the Greenhouse effect was never combated. What is this person dealing with? Include information on the temperature, environment, and sea levels.
Without the natural greenhouse effect, heat from the Earth's surface would simply escape into space, resulting in an average temperature of about 20 °C.
What happens without the greenhouse effect?Earth would be a frozen wasteland without greenhouse gases. By retaining some of the Earth's heat energy so that it doesn't all escape into space, greenhouse gases keep our planet habitable. The greenhouse effect is a label for this heat-trapping phenomenon. The climate control in your greenhouse needs to be improved because it can help with disease prevention, plant growth stimulation, quality improvement, and even energy savings. The preservation of our planet's habitable temperature depends on "greenhouse gases."
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A car is traveling at a constant velocity of 60 km/h east for 4 hours.
Choose the correct statement about the acceleration of the car.
A
The acceleration of this car IS positive.
B
The acceleration of this car is negative.
C
The acceleration of this car is zero.
D
m
The acceleration of this car is 15 Co
The acceleration of this car is zero. Because Acceleration is the change of velocity with respect to time and since car maintains a constant velocity, there is no acceleration.
What is acceleration ?The rate at which a velocity changes over time in both direction and speed. A point or object going straight ahead is accelerated when it accelerates or decelerates. Even if the speed is constant, motion on a circle accelerates because the direction is always shifting.
What is the relationship between acceleration and speed?Acceleration is the rate at which speed changes, while speed is the ratio of the distance in a time period. The metric process utilizes meters per second (m/s) as the unit of speed and meters per second squared (m/s²) as the measure of acceleration. Velocity is a scalar quantity, whereas speed is indeed a scalar quantity.
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What do you mean by mechanical advantage of lever is 4. Please help me
Answer:
MA of a simple machine is 4. It means that load overcome is 4 times more than effort used in the machine. This machine can multiply force 4 times the effort used.
since we are only concerned about the acceleration due to the collision, why is it important to zero the dynamic sensor while stationary on the track?
Zero the dynamic sensor is important because of its sensitivity, resolution, range, zero drift and repeatability.
Dynamic applications describe cyclical, quick measuring processes like those frequently seen in presses. In dynamic applications, it's crucial to tare the zero point at regular intervals to prevent the measuring signal from wandering.
The input for automated zero point adjustments is provided by the strain transducers. The PLC can be used to start the zero point adjustment. The signal is reset (pulled to zero) and the zero point adjustment is performed if the input is pulled to 3 V.
The sensor is in measuring mode if the input is open. Instead of using "Active-Low-Levels," the reset logic is also possible with "Active-High-Levels".
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sam, whose mass is 80 kg , takes off across level snow on his jet-powered skis. the skis have a thrust of 170 n and a coefficient of kinetic friction on snow of 0.1. unfortunately, the skis run out of fuel after only 13 s .
The distance covered by Sam within the first 13 seconds is 96.75 m.
Equation :Given that the mass m of Sam is 80 kg and the force F is 170 N. The coefficient of friction is 0.1.
The net force is given below
Fₙ = F - F₁
Where Fₙ is the net force and F₁ is the friction force.
Fₙ = 170 - μmg
Fₙ = 170 - 0.1 x 80 x 9.8
Fₙ = 91.6
Fₙ = ma
91.6 = 80 x a
a = 91.6 / 80
a = 1.145 m/s²
For the first 13 seconds.
So, the distance covered by Sam with this acceleration is given .
s = ut + 1/2 at²
u is the initial velocity which will be zero and t is the time interval.
So,
s = 1/2 at²
s = 1/2 x 1.145 x 13²
s = 96.75 m
Hence, the distance covered by Sam within the first 13 seconds is 96.75 m.
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What is the Gravitational pull of something that weighs 254.4 Newtons and is at a 40 Degree angle?
An object weighing 254.4 N and inclined at a 40° angle has a gravitational pull of 2380.5.
The formula of a Force is F=Mg.
Where M is the mass of an object, and g is the gravity.
[tex]F_{1}[/tex]=254.4× 10, Value of gravity ≈ 10.
= 2544
Here F ≠ Mg, due to an angle of 40°.
∴ [tex]F_{ax}= mass. cos \alpha[/tex] .
= 254.4× cos 40
As cos40 =0.766
= 254.4 × 0.766
= 194.88
To find a Normal force, use the formula of Gravitational pull.
[tex]F_{total} = F_{1}-F_{bx}[/tex] , here [tex]F_{bx} = M. sin\alpha[/tex] =163.5
= 2544-163.5
=2380.5
Hence Gravitational pull is 2380.5
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differentiator utilizes an ideal op amp, a 30 kω resistor, and a 0.03 μf capacitor. what is the frequency 0f in hz at which its input and output sine‐wave signals have equal magnitude? what is the output signal for a 1 v peak‐to‐peak sine‐wave input with frequency equal to 10
The work calls for a 10k Omega resistance value and a 1 nF capacitance value. Being aware of those output gives us a clear advantage. To get the frequency of unity gain, we can utilize the transfer function (2.34)
The output waveform will consist of positive and negative spikes of size Vsat, which is roughly 13V for a 15V op-amp power source, for a square wave input, let's say 1V peak and 1 KHz.
The differentiated output will be zero whenever the input is held constant at 1V.
For a perfect square wave, the input slope is infinite when it transitions between the t 1V levels.
As a result, the output is clipped to around 13V for a 15V op-amp power source.
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The question was incomplete. Check below the full question.
differentiator utilizes an ideal op amp, a 30 kω resistor, and a 0.03 μf capacitor. what is the frequency 0f in hz at which its input and output sine‐wave signals have equal magnitude? what is the output signal for a 1 v peak‐to‐peak sine‐wave input with frequency equal to 10f₀ ?
how the solar system was formed. Use theterms hypothesis observation, and nebula.
Answer: The nebular theory states that our solar system formed from the gravitational collapse of a giant interstellar gas cloud—the solar nebula. – (Nebula is the Latin word for cloud.) Kant and Laplace proposed the nebular hypothesis over two centuries ago.
Explanation:
first find the direction of the magnetic field at wire 2 due to wire 1 (using the right-hand rule). next, find the direction of the force on wire 2 due to this magnetic field. the force on a particle with charge qqq moving with velocity v⃗ v→v vec in a magnetic field b⃗ b→b vec is f⃗
1) Magnitude of the magnetic field equals (permeabilityoffrespace) (currentmagnitude)
2π(distance)
B = μ02πr
Developing the Formula
B = denotes the strength of the magnetic field in Tesla (T)
The permeability of open space (4107Tm/A) is shown by the symbol 0
Electric current strength is expressed as I in terms of amperes (A)
R stands for the meters-long distance (m)
2) the magnetic force per unit length of wire in a uniform field is
F/l =IB sinθ .
force on a length l
current I
uniform magnetic field B ,
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a train is moving with 36 km per hour speed driver accelerate uniformly with acceleration 5 metre per second square find the velocity after 5 second and also find the distance covered by the train during this time
The distance covered by the train is 225m.
Given,
u = 36km/hr = 10ms^(-1)
a = 5ms^(-2) ,t = 5sec
According to Newton's first law of motion:
v = u + (a × t)
v = 10 + (5 × 5) = 35ms^(-1)
According to Newton's third law of motion:
(v)²- (u)² = 2as
(35)² - (10)² ÷ (2 × 2.5) = s
s = 225m
The final velocity of the train is derived using Newton's first law of motion. Where, u = initial velocity, a = acceleration,v = final velocity, and t = time. The equations of motion define the behavior of the physical schema in order of motion.
Then find the distance covered by the train implementing the third equation of motion with velocity v, starting velocity u, constant velocity a, and displacement.
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state whether the loudness of the wave is increasing or decreasing
All forms of waves have a definite amplitude, and this amplitude is what determines how loud a sound wave is. In contrast to good surfing waves, which may have an amplitude of 10 feet or more, a wave on a calm ocean will often have a height of less than one foot.
Decreasing.
Determination of a wave's amplitude:
The amplitude of a sound wave determines how loud or loud it is. A louder sound has a bigger amplitude, and a softer sound has a smaller amplitude.
Higher pitch and sharper edges result from decreasing wavelength and increasing frequency. As a result, increasing the frequency makes sounds sharper while increasing the amplitude or intensity increases the volume.
A sound wave's amplitude measures the height of the wave. When a sound is made, the maximum displacement of the medium's vibrating particles from their mean position determines the amplitude of the sound wave.
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_____is a measure of amount of matter in a given amount of space
Answer: Density
Explanation:
I remember learning it in 9th-grade physic class.
Which diagram shows the resulting wave when they cross at point X?
The diagram shows the resulting wave when they cross at point X is the second one (b) because It is the triangle that is pointed upward on the rope's top side and appears to be a little larger than the others.
What is the wave about?A wave is a disturbance that can go through a material without permanently moving the material's components. Transverse and longitudinal are known to be the two types.
In a transverse wave, the wave's direction of propagation is parallel to the direction in which the medium's particle vibrations are occurring. Examples include X-rays, light waves, as well as water waves. In contrast, in longitudinal waves, the direction of the particle vibration is said to be parallel to the path of the wave transmission.
Note that it is type of longitudinal wave is a wave in a rope where there is the motion of two wave pulses.
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A quantity that has only magnitude is called a vector
A physical quantity which has only magnitude is called scalar quantity eg: speed and distance whereas physical quantities which have both magnitude and direction are called vector quantities eg: velocity and displacement.