drag the labels onto the diagram to identify the components of replicating dna strands. A.Parental DNA
B. DNA polymerase
C. Leading strand
D. Lagging Strand
E. DNA ligase
F. Replication Fork
Answers
A DNA fork is a structure that forms during DNA replication. The double helix structure of DNA needs to be unwound in order for replication to occur. The labeled diagram is attached below.
What is a replication fork?This unwinding takes place at a specific point on the DNA molecule called the replication fork. The replication fork is formed by the separation of the two complementary strands of the DNA double helix, and it acts as a template for the synthesis of new DNA strands. The replication fork is maintained by enzymes called helicases, which unwind the DNA, and primases, which add short RNA primers to the template strands. The process of replication continues as the two strands of DNA are separated and new nucleotides are added to each strand by DNA polymerase.
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Related Questions
A helicopter,which was assending vertically at a steady velocity of 20meter per second,released a parcel that took 20seconds to reach the ground .state the direction in which the parcel moved immediately it was released
Answers
Answer:back
Explanation:Velocity =d/t
D=vt
=20x20=400m
a flea jumps by exerting a force of straight down on the ground. a breeze blowing on the flea parallel to the ground exerts a force of on the flea. find the direction and magnitude of the acceleration of the flea if its mass is . do not neglect the gravitational force.
Answers
21.31 m/s2 is the amount of acceleration. The graphic clearly depicts the direction, which is southeast.
What is the formula for acceleration?
The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t). This enables you to calculate the change in velocity in meters per second squared (m/s2).
Explain what acceleration is.
acceleration: the rate at which the speed and direction of a moving object vary over time. A point or object going straight forward is accelerated when it accelerates or decelerates. Even though the speed is constant, motion on a circle accelerates because the direction is always shifting.
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exercice 14 page 49 physique chimie seconde
Answers
Answer:
Explanation:
Exercise 14 page 49 of Physics and Chemistry for Secondary School asks students to calculate the mass of a sample of magnesium if the volume is given.
To calculate the mass of a sample of magnesium from the volume, we need to use the formula:
Mass = Volume x Density
Where Density is the density of the material, in this case magnesium. The density of magnesium is 1.74 g/cm3.
So, the mass of the sample of magnesium can be calculated as:
Mass = Volume x Density
Mass = 6.7 cm3 x 1.74 g/cm3
Mass = 11.658 g
Let A represent the ball moving at 2.00 m/s, and call that direction the positive direction. Let B represent the ball moving at 3.60 m/s in the opposite direction. Thus, VA =2.00 m/s and VB=-3.60 m/s. Use Eq. 7-7 to obtain a relationship between the velocities.
VA-VB=-(V’A-V’B) → V’B = 5.60 m/s+ V’A
Substitute this relationship into the momentum conservation equation for the collision, noting that MA=MB
Answers
Answer:
So the velocity of ball A after the collision is 1.80 m/s.
Explanation:
The momentum conservation equation for a collision is given by the equation:
MAVA + MBVB = MAV'A + MBV'B
Substituting in the given values, we have:
MA2.00 m/s + MB(-3.60 m/s) = MAV'A + (MB(5.60 m/s + V'A))
Since MA=MB, we can simplify the equation further:
2.00 m/s + (-3.60 m/s) = V'A + (5.60 m/s + V'A)
Solving for V'A, we get:
V'A = 1.80 m/s
So the velocity of ball A after the collision is 1.80 m/s.
a ladybug is clinging to the rim of a spinning wheel which is spinning ccw and is slowing down. at the moment shown, what is the approximate direction of the ladybug's total acceleration?
Answers
The ladybird is accelerating in a general southeasterly direction. Considering that a ladybird is clinging to the rim of a wheel that is spinning slowly. C is the wisest decision.
In mechanics, acceleration refers to the speed at which the velocity of an item changes over time. The accelerations vector quantity (in that they have magnitude and direction). An object's acceleration in respect to a net force depends on the force's direction. the rate of an object's acceleration, according to Newton's Second Law. An object's velocity, or the speed at which it is travelling, indicates the rate of change in that object's position as observed from a certain frame of reference.
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Case A: A long, thin steel wire is cut in half, and each half is connected to a different terminal of a light bulb. An electromagnetic (EM) plane wave moves past the wire, as shown above.--------------------------------Part 1)In what direction is the wave propagating?+ x- x+ y- y+ zOther--------------------------------Part 2)Would the bulb glow in this case?YesNo--------------------------------Part 3)Suppose instead that the wire were positioned as described below. Would the brightness of the bulb in each case below be greater than, less than, or equal to the brightness that it had in Case A?Case B: The wire is parallel to the y-axis but with its bottom end located on the x-axis (i.e., the wire is shifted upward a distance equal to half its length).greater than the brightness in Case Aless than the brightness in Case Aequal to the brightness in Case A--------------------------------Part 4)Case C: The wire is tilted so that it makes an angle of 40° with respect to the y-axis but is still parallel to the y-z plane.greater than the brightness in Case Aless then the brightness in Case Aequal to the brightness in Case APlease explain as much as you can. I think I have part 1 & 2 as +x and no. Is this correct? I really have no idea about the last two parts. Thanks.
Answers
magnetic resonance MR The wire is broken in two as a plane wave passes it; each half is attached to a bulb of something like a light bulb. As a result, the electromagnetic field is moving in the direction of positive x.
What makes it electromagnetic?They are all referred to as electromagnetic radiation by scientists. Since the magnetic and electric fields are oscillating, the waves that energy are known as electromagnetic (EM). According to their function of wavelength, which ranges from low to high frequency and short to long wavelength, scientists categorize them.
What does electromagnetic energy mean?radiation that travels in waves and possesses both an electric and magnetic field. Both natural and artificial sources contribute to it. The energy levels of electromagnetic radiation can range from low to high. It contains infrared, microwaves, and radio waves.
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a basketball player makes a jump shot. the 0.6 kg ball is released at a height of 2 m above the floor with a speed of 7.2 m/sec. the ball goes the net 3.1 m above the floor with a speed of 4.2 m/sec. what is the work done on the ball by air resistance?
Answers
The work done by air resistance is always negative because it is always opposing the motion of the object, so the work done on the ball by air resistance will be negative. The work done on the ball by air resistance is ΔK = -10.26 J.
Describe the mechanism of air resistance.A pressure that is brought on by air is called air resistance. An object traveling through the air experiences the force in the opposite direction. A sports vehicle with a streamlined form will face less air resistance than a lorry with such a flat front, enabling the latter to travel faster.
What creates air resistance, and how does it work?Causes of Air Resistance Air resistance also referred to as "drag," is an air-generated force. An item slows down when air specks strike the front of it. The more air particles that impact the object as well as the larger it's surface area, the more resistance it will encounter.
To calculate the work done on the ball by air resistance, we need to use the work-energy principle, which states that the work done on an object is equal to the change in its kinetic energy.
The initial kinetic energy of the ball is given by:
K_i = 0.5 * m * v^2
where m is the mass of the ball (0.6 kg) and v is the initial velocity (7.2 m/s).
K_i = 0.5 * 0.6 * 7.2^2
K_i = 15.55 J
The final kinetic energy of the ball is given by:
K_f = 0.5 * m * v^2
where m is the mass of the ball (0.6 kg) and v is the final velocity (4.2 m/s).
K_f = 0.5 * 0.6 * 4.2^2
K_f = 5.29 J
The change in kinetic energy is given by:
ΔK = K_f - K_i
ΔK = 5.29 - 15.55
ΔK = -10.26 J
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(e) suppose that when an apparatus with arms of length 20 m, and using light with a wavlength of 530 nm, is rotated by 90 degrees, a single fringe shift is observed. how fast is the apparatus moving with respect to the aether?
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The apparatus is moving at a velocity of approximately 17.7 m/s with respect to the aether.a single fringe shift is observed. how fast is the apparatus moving with respect to the aether.
What is velocity ?
Velocity is a measure of the rate and direction of change in the position of an object over a period of time. It is a vector quantity, which means it has both magnitude and direction.
Velocity is usually expressed as a vector, which uses both a magnitude and a direction. Common units of velocity are meters per second (m/s), kilometers per hour (km/h) and feet per second (ft/s).
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In an experiment, one of the forces exerted on a proton is F❝ =❝αx2i^, where α=12N/m2.
A- How much work does F? do when the proton moves along the straight-line path from the point (0.10m,0) to the point (0.10m,0.40m)?
B- How much work does F? do when the proton moves along the straight-line path from the point (0.10m,0) to the point (0.30m,0)?
C- How much work does F? do when the proton moves along the straight-line path from the point (0.30m,0) to the point (0.10m,0)?
Answers
The force's contribution to the work done when the proton follows a straight path is given as
a) W = 57.6 × 10⁻²⁹ J
b) W = 1.152 x 10⁻²⁷ J
c) W = - 1.152 x 10⁻²⁷ J
The following formula is used to calculate the work that the force performs when the proton moves along a straight line from point (0.10 m, 0) to point (0.30 m, 0).
W = f r
W = k q²/r² × r
W = kq²/r
where,
q is the charge of the proton
r is the distance travelled by the proton
a) W = (9 × 10⁹)(1.6 × 10⁻¹⁹)²/(0.4 - 0)
W = (9 × 10⁹)(1.6 × 10⁻¹⁹)²/(0.4) = 23.04 × 10⁻²⁹/0.4
W = 57.6 × 10⁻²⁹ J
b) W = (9 x 10⁹)(1.6 x 10⁻¹⁹)²/(0.3 - 0.1)
W = (9 x 10⁹)(1.6 x 10⁻¹⁹)²/(0.2)
W = 1.152 x 10⁻²⁷ J
c) W = (9 x 10⁹)(1.6 x 10⁻¹⁹)²/(0.1 - 0.3)
W = (9 x 10⁹)(1.6 x 10⁻¹⁹)²/(-0.2)
W = - 1.152 x 10⁻²⁷ J
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how is physics related to chemistry and biology
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an 82.0 g arrow is fired from a bow whose string exerts an average force of 95.0 n on the arrow over a distance of 80.0 cm. what is the speed of the arrow (in m/s) as it leaves the bow?
Answers
The speed of the arrow is 28.9 m/s. This can be calculated using the equation: V = (F x D) / m, where V is the speed, F is the force, D is the distance, and m is the mass. In this case, V = (95.0 N x 0.8 m) / 82.0 g = 28.9 m/s.
What is mass ?
Mass is a fundamental concept in physics that describes the amount of matter in an object or system. It is measured in terms of kilograms (kg) or other units such as pounds (lbs).
Mass is also used to measure the force of gravity, as well as the inertia of an object. In physics, mass is also used in the theory of relativity and in quantum mechanics. Mass is related to weight, which is the force of gravity acting on an object. Mass is different from weight because it is a measure of the amount of matter, while weight is a measure of the force of gravity on an object.
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What is scientifically the most important reason to wear a seatbelt when riding/driving a car?
A.When in a moving car, you too are in motion, and you don't stop if the car crashes
B.To make you a part of the car
C.When in a moving car, you are not in motion, and the seatbelt prevents you from
being in motion
D.It is the law
Answers
Correct option is A, When in a moving car, you too are in motion, and you don't stop if the car crashes, So, seatbelt protects you.
Importance of wearing a seatbelt -There is a persistent misconception that it is preferable for passengers to be flung out of a car, far from the scene of the accident. In actuality, those who are thrown from a car have a four times higher risk of dying than those who stay inside.
It holds the strongest body components in place: The hips and shoulders are the strongest body parts in both adults and children. These areas are where seat belts are intended to make contact with the body to offer the best protection.
Seat belts disperse a collision's force: By distributing the impact of a collision over a larger portion of the body, a lap and shoulder belt serves to reduce the strain on any one location.
This can help one avoid suffering a serious injury. Additionally, if you are hit by another car or have to rapidly apply the brakes, a shoulder strap will prevent your head and upper body from striking the dashboard, steering wheel, and other interior portions of the car.
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Do 26-30! I’ll give brainlist!
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26) Energy is a scalar quantity. Option 2
27) Energy is measured in the same unit as work. Option 4
28) The unit that is correctly paired is work. Option 4
29) The unit of gravitational potential energy is Joule. Option 4
30) The greatest gravitational potential energy is possessed by the object that is 6Kg at a height of 5 m. Option 4
31) he gravitational potential energy and the speed decreases. Option 1
What is a quantity?We know that when we talk about a quantity in physics, our minds should be able to go to something that can be measured. In Physics we can be able to classify the quantities that we have into the vector quantities and the scalar quantities.
The vector quantities are the ones that have both a magnitude and a direction while the scalar quantities are the ones that have only a magnitude but do not have a direction that is attached to them.
The unit of the quantity can be used to deduce the dimensions of the quantity that we are looking at and this is key when we are looking at the relationship between the quantities in an equation.
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Jessica is studying star constellations in the night sky. one evening she observes the constellation ursa major to the north. another evening she cannot find it at all. all of the following reasons can explain this except.
Answers
The constellation Ursa Minor, which includes the "Little Dipper" constellation, is where Polaris is found. The star at the Little Dipper's handle's tip is Polaris.
What is Night sky?However, the Little Dipper is frequently dim and might be difficult to spot. Finding Polaris is made simple by locating the Big Dipper's seven stars in the constellation Ursa Major, sometimes known as the Big Bear. A little bowl with a long handle is formed by these stars.
Follow the Big Dipper's stars from the handle down the edge of the bowl, to the bottom of the bowl, and up the opposite side; Dubhe and Merak, the two stars that make up the second side, point to Polaris. Polaris, take the distance between Dubhe and Merak.
About half of the stars closest to our Sun are known to be in numerous systems (two or more stars). About 5 to 10 percent of the stars we can see are "visible binaries," or pairs of stars that may be seen together through a telescope.
Therefore, The constellation Ursa Minor, which includes the "Little Dipper" constellation, is where Polaris is found. The star at the Little Dipper's handle's tip is Polaris.
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As a promotion for the Houston Astros downtown ballpark, a competition is held to see who can throw a baseball the highest from the front row of the upper deck seats, 83ft above field level. The winner throws the ball with an intitial vertical velocity of 92ft/sec and it lands on the infield grass.
A) Find the maximum height of the baseball
B) How much time is the ball in the air?
C) Determine its vertical velocity when it hits the ground?
Answers
The maximum height of the baseball, time is the ball in the air and vertical velocity when it hits the ground are 215.25ft, 6.543s and -117.4ft/s respectively.
What is velocity, exactly?The displacement that an object or particle undergoes with respect to time is characterized vectorially as velocity. The metre per second (m/s) is the recognised unit of velocity magnitude (also known as speed). Alternately, the quantity of velocity can be represented in centimetres per second (cm/s).
a=g= -32ft/s^2
vi = 92ft/s
vf= 0ft/s
vf=vi+axt
0= 92-32xt
t=> 2.875s
di = 83ft
vi = 92ft/s
a=g= -32ft/s^2
t=> 2.875s
d= 83+ 92x 2.875 -0.5 x 32 x (2.875^2)
=> 215.25ft.
B) 0 = 215.25 + 0xt - 0.5 x 32 x t^2
t=> 3.668s.
total time => 2.875 + 3.668s. => 6.543s.
c) vf=vi + axt
vi = 0
vf= -32x3.668 => =-117.4ft/s (falling down)
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an astronaut is on the international space station, orbting the earth. which statement is true? a the centripetal force on the station is equal to the centripetal force on the astronaut b the astronaut has an acceleration of zero c the outward pull on the astronaut is equal to the inward pull of gravity on the astronaut d none of these are true e the astronaut experiences a force of gravity that is the same as she would experience on the surface of earth f if the astronaut dropped a tool, she would see it fall in a curved path because the space station is accelerating centripetally
Answers
Astronauts and their spacecraft still have mass and are subject to the effects of Earth's gravity while they are in space. Even though the gravitational pull of Earth is weaker in space than on the Earth's crust,
Who or what are astronauts?
Astronaut is a term for a person who has traveled to space that is formed from of the Greek words meaning "star" and "sailor." More precisely, in the West, the term "astronaut" refers to space travelers from the U.s, Canada, Europe, or Japan.
What are the names of Indian astronauts?
Vyomanaut, also known as vyomanauts (rare, chiefly India) An Indian astronaut is a person who participates in the Indian space program.
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an object is accelerating at a rate of 25 m/s2, how fast will it be moving (in m/s) after 1.50 min? (assume an initial velocity of zero.)
Answers
22 seconds are needed for an object to accelerate at the a rate of 25 m/s2 and reach a speed approaching 550 m/s.
What does acceleration mean?Acceleration is the rate at which speed changes.Therefore, even though an object is moving in a circular route, its velocity direction is changing, and it is continuing to accelerate.
the acceleration formula in detail.Kinetic friction (a) is the result of the combination of the change in velocity (v) as well as the change in time (t), based on the equation a = v/t (t). This allows you to compute the rate of change of velocity in terms metric kilometers per minute squared (m/s2).
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Which event may occur when ocean salinity increases? (its not multiple choice)
1. mass of water increases
2. freezing point of water increases
3. sunlight in deeper locations decreases
4. amount of dissolved gases in water increases
Answers
Ocean salinity increases when the freezing point of water rises. More salt is dissolved in the water as the salinity rises, increasing the mass of the entire solution.
The freezing point of water decreases as salt concentration increases. Because of the large amount of solute, sunlight cannot penetrate to the deeper layer of water. The water becomes denser overall. A essential quality of a body is its mass. Ocean salinity increases when the freezing point of water rises. More salt is dissolved in the water as the salinity rises, It was widely believed to be connected to the volume of matter in a physical body before to the atom's discovery and the development of particle physics. Theoretically, the same chemical might be included in different atoms and elementary particles.
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a satellite travels at constant speed in a circular orbit at a height just 100 miles above sea level. without doing any calculations, what is the acceleration of the satellite? select all that apply
Answers
4). The acceleration of the satellite is just a hair less than 9.8 m/s.
A satellite travels at constant speed in a circular orbit at a height just 100 miles above sea level. The acceleration of the satellite is due to the force of gravity. The force of gravity is equal to the mass of the satellite times the acceleration of gravity, which is 9.8 m/s.
The mass of the satellite is very small, so the force of gravity is also very small. However, the satellite is also moving very fast, so the centripetal force is also very small. As a result, the acceleration of the satellite is just a hair less than 9.8 m/s.
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Complete question is attached below.
which condition occurs when the needle of a compass is attracted to nearby metal or some magnetic source, such as another compass?
Answers
The condition that occurs when the needle of a compass is attracted to nearby metal or some magnetic source, such as another compass, is known as magnetic induction.
Magnetic induction occurs when a magnetic field is created by the motion of the compass needle and induces currents in nearby metal objects or other compasses, causing them to be attracted to the magnet.
Magnetic induction occurs when a changing magnetic field is created by the motion of the compass needle, inducing currents in nearby metal objects or other compasses. This causes the objects or other compasses to be attracted to the magnet.
This type of induction is used in many different applications, such as motors, generators, and transformers. Additionally, it is used in many electronic devices, such as speakers, headphones, and microphones. Magnetic induction is also used in medical imaging and magnetic resonance imaging (MRI) to create images of the human body.
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If a copper metal of diameter 5cm and length 1m is stuck into the base of a hot water bath such that the heat of the water at 80° Celsius is transmitted to the other end. calculate :
(1) the temperature gradient
(2) the quantity of heat supplied ( Take thermal conductivity of aluminium to be 386W/mk), if the temperature at the other end is 30° Celsius
Answers
Answer:
If a copper metal of diameter 5cm and length 1m is stuck into the base of a hot water bath such that the heat of the water at 80° Celsius is transmitted to the other end. calculate :
(1) the temperature gradient
(2) the quantity of heat supplied ( Take thermal conductivity of aluminium to be 386W/mk), if the temperature at the other end is 30° Celsius
Answer: The temperature gradient:
Explanation: ∇=T/L=80/1=80°C/m.
a 15 g particle is moving to the left at 20 m/s . how much net work must be done on the particle to cause it to move to the right at 33 m/s ?
Answers
The net work done required to make the particle move form left to right is found to be 51.67 Joules.
The particle of mass 15 gram is going to left at a speed of 20m/s.
We have to make the particle move to right at speed of 33m/s.
The work done will be calculated as,
Work done = change in kinetic energy
Work done = final kinetic energy- initial kinetic energy
W = M/2(V²-U²)
Where,
V is the initial speed,
U is the final speed,
M is the mass,
W is th net work done.
Putting values,
W = 0.15/2((33)²-(20)²)
W = 51.67 Joules.
So, the net work done is 51.67 Joules.
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a 89 kg man is riding on a 58 kg cart traveling at a speed of 3.5 m/s. he jumps off with zero horizontal speed relative to the ground. what is the resulting change in the cart's speed, including sign?
Answers
With the help of the conservation of momentum, the change in the cart's speed is + 5.37 m/s
To find the change speed of the carts, we can use the formula of conservation of momentum:
(m1 + m2) v1i = m1 v1f + m2 v2f
ΔV = v2f – v1i
According to the data, we are given that:
The mass of the man (m1) = 89 kilograms
The mass of the cart (m2) = 58 kilograms
The velocity of the cart with man (v1i) = 3.5 meters per second
The velocity of the man after the jump (v1f) = 0 meter per second
The velocity of the man after he jumped off (v2f) = x
Therefore,
(m1 + m2) v1i = m1 v1f + m2 v2f
(89 + 58) 3.5 = (89 x 0) + (58 x v2f)
514.5 = 0 + 58v2f
V2f = 514.5 = 8.87
So, the change in velocity can be calculated as =
Δv = v2f – v1i
Δv = 8.87 m/s – 3.5 m/s
Δv = + 5.37 m/s
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Two positive point charges q are placed on the x-axis, one at x = a and one at x = -a.
a. Derive an expression for the electric field at points on the x-axis, where ?a < x < a.
b. Derive an expression for the electric field at points on the x-axis, where x > a.
c. Derive an expression for the electric field at points on the x-axis, where x < -a.
Answers
The electric field at a point between 2 points is given by
E = 4 k Qax/(a² - x²)² (-i^)
The formula for the electric field at a location on the x-axis is,
E = k Q /r² ---(1)
where,
k is constant
q is magnitude of charge
r is the separation between the charge and the location of the electric field
So, we have to find the electric field at point (x,0) due to the both charges shown in the figure.
Due to point charge at point (-a,0) the electric field is in the positive x direction and due to charge at point (a,0) the electric field is in negative x direction.
E₁ be the electric field due to charge at point (-a,0)
E₂ be the electric field due to charge at point (a,0)
E₁ = k Q/(a + x)² i^
where the unit vector along the x-axis is i^
E₂ = k Q/(a - x)² (-i^)
E₁ + E₂ = k Q/(a + x)² i^ + k Q/(a - x)² (-i^) = -4 k Qax /(a² - x²)² i^
Thus, for a point between -a < x < a, electric field is given by E = 4 k Qax/(a² - x²)² (-i^)
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what type of braking is used to smoothly and gradually reduce brake pedal pressure at the end of a braking maneuver
Answers
Trail braking is used to smoothly and gradually reduce brake pedal pressure at the end of a braking maneuver.
What is Pressure ?
Nothing would probably happen if you tried to pound a bowling pin into the wall, unless people decided to stop lending you their bowling pins. However, if you use the same amount of force to hammer a nail, the nail has a much higher chance of penetrating the wall. This demonstrates that sometimes understanding the force's magnitude alone is insufficient; you also need to understand how the force is distributed over the surface of impact. The relatively small area on the sharp nail tip was where the whole force between the wall and the nail was centred for the nail. The area of the bowling pin touching the wall was much larger, though, and as a result, the force was dispersed much more evenly.
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The type of braking is used to smoothly and gradually reduce the brake pedal pressure is called the trail braking.
What is pressure?Pressure is defined as the force applied perpendicularly to an object's surface per unit area across which that force is dispersed. The pressure relative to the surrounding air is known as gauge pressure, also written gage pressure[a].
Gradual reduction of brake pedal pressure at the end of a braking maneuver is typically achieved through a process called "trail braking." Trail braking refers to the technique of continuing to apply the brakes after turning into a corner in order to maintain a greater level of control and stability of the vehicle.
This is done by gradually reducing the brake pressure as the vehicle enters the corner, allowing for a smoother and more controlled transition between braking and accelerating.
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A rocket is sitting on the launchpad, preparing to launch. What form(s) is the energy in? Check all that apply
Chemical Potential Energy Gravitational Potential Energy Elastic Potential Energy
Kinetic Energy
Thermal Energy
Answers
Rocket fuel, which is used in chemical combustion reaction, is a sort of chemical potential energy that is stored in rockets.
How much chemical potential energy is there?The energy that a substance has stored in its chemical bonds is known as chemical potential energy. When gas is burned in a regulated manner in the car's engine, a significant quantity of the chemical potential energy that's also present in the many compounds that make up petroleum is released.
What increases the potential energy of chemicals?There are multiple processes involved in a chemical reaction: First, two bound atoms acquire energy in some form, typically heat or light. Their chemical link is broken as a result, boosting their energy potential.
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a 1.0-kilogram mass gains kinetic energy as it falls freely from rest a vertical distance, d. how far would a 2.0-kilogram mass have to fall freely from rest to gain the same amount of kinetic energy?
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A mass of 2.0 kg must fall freely from [tex]\frac{1}{2}[/tex] d to gain the same amount of kinetic energy as 1.0 kilograms of distance d.
Kinetic energy describes the power of moving particles within a system or an object. In contrast to potential energy, which is independent of other stationary and moving objects in its immediate surroundings, kinetic energy is related to other objects. For instance, the object's kinetic energy will be higher if it is placed at a higher height or distance.
KE = PE
PE = mgh
m = mass of the object
g = (9.8 m/s²)
h = the height
a 1.0-kilogram mass to gain the same amount of kinetic energy:
KE₁ = KE₂
mgh₁ = mgh₂
(1.0) (9.8) (d) = (2.0) (9.8) (h₂)
h₂ = [tex]\frac{1}{2}[/tex] d
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suppose you throw a ball downwards with a certain initial speed from a certain height h above the ground, and someone else throws a ball directly upward at the same speed, so the two balls collide. will the two balls collide in the middle of the path (h/2), above the middle or below? please explain.
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In the center of the pathway h by 2, below the Centre, the two balls clash.
When you throw the ball down, how quickly does it accelerate?9.8 m per s down .When an is thrown or dropped, the gravitational laws and relative motion are essentially the same. All three are comparable in that the ball always accelerates downward at a 9.8 m per sec rate, regardless of how it is dropped or tossed.
Is the ball accelerating or decelerating as it descends?The speed of an object falling downward, toward the attraction of gravity, increases with each passing second. However, if the object's original velocity was upward, it slows by around 10 m per sec for every second that passes.
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a student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18m/s. the cliff is 50m above a flat, horizontal beach. how long after being released does the stone strike the beach below the cliff? with what speed and angle of impact does the stone land?
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A pupil throws a stone 18 meters per second over a cliff's edge while standing there. The cliff rises 50 meters above a horizontal, level beach. Consequently, the stone's speed is 21.984 m/s.
Which way is horizontal?Everything equal to the horizon is said to as horizontal.Anything that forms a bend with the normal or the ceiling is said to as vertical because it is the inverse of horizontal. The line that spans across left to right is therefore considered to be horizontal.
Calculation
The time taken to reach the ocean from the cliff is 2.24 seconds
The speed of the stone at the point of contact is 21.984 m/s
The stone is thrown horizontally with a speed of 19.5 m/s from the cliff
The height of the cliff = 24.6m
The time taken by the stone to reach the ocean can be calculated using the formula
y - v₁t = -1/2 gt²
where y is the height of the cliff
v₁ is the speed of stone vertically
g is the acceleration due to gravity
t is the time taken
But the speed of the stone vertically will be zero, v₁ = 0
Therefore, the equation becomes
y = -1/2gt²
Let us re-write this equation in order to find t
t = √(-2y/g)
Now, let's substitute the known values in the above equation, we get
t = √(-2x -24.6 / 9.8)
=√(49.2/9.8)
= √5.02
= 2.24 seconds
Therefore, the time taken to reach the beach is 2.24 seconds
The speed of the stone at the point of impact can be found using the formula a = v/t
where a is the acceleration
v is the velocity
t is the time taken
Here, the acceleration is the acceleration due to gravity
Thus, the velocity of the stone is
v = at
= 9.8 x 2.24
= 21.984 m/s
Therefore the velocity of the stone is 21.984 m/s
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What advantage does a machine with a MA of 1 provide? Give an example.
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Answer:
A machine that has a Mechanical Advantage (MA) of 1 offers no benefit. It does not imply that the device is perfect or that there aren't any energy losses, though.
Explanation:
A machine with an MA of 1 produces a force that is exactly equal to the force that is applied to it.
A straightforward screwdriver is an illustration of a machine having an MA of 1. The force needed to spin the screw and the force applied to the handle of the screwdriver are equal when the force is applied to the handle and is passed directly to the screw. Since the distance traveled by the handle and the screw are equal, the Mechanical
Answer:
If the fulcrum is exactly in the middle, then moving one end by 1 meter will move the other end exactly by 1 meter. This is the the machine with Mechanical advantage exactly equal to 1.
Explanation:
whenever something is too heavy to lift, a ramp can be a solution. As long as the slope of the ramp is gentle enough, and the object has something like wheels that roll, heavy weights can be lifted from here to there.
Mechanical advantage is the ratio of output to the input force. It can also be described as the ratio of load to the effort applied.
