what are high speed rails? why are they important?

Q: What is the force on an object of mass m=80Kg with the acceleration of a=3.5 m/s^2?

A: The objective of the question is to calculate the force exerted on an object given its mass and…

Q: In an electricity demonstration at the Deutsches Museum in Munich, Germany, a person sits inside a…

A: The objective of the question is to find the magnitude of the electric field inside a charged metal…

Q: The figure shows a long straight wire near a rectangular current loop. What is the direction and…

A: A long straight wire having current (I1) = 15.0 Adistance from rectangular loop (x) = 7.50 cmCurrent…

Q: 1) A constant horizontal force of F = 200.0 N pushes a crate of mass m = 25.0 kg, initially at rest,…

A: The objective of the question is to find the work done on the crate by the force F and to calculate…

Q: A 4.5 kg ball #1 moving at 10 m/s at angle 30 degree below the horizontal collides with a 6 kg ball…

A: The objective of this question is to determine the velocity of ball #2 after the collision and to…

Q: Consider the line dipole made of aligned line sink and source of equal strengths m. Let the sink be…

A: The objective of the question is to derive the potential of a line dipole at large distances and…

Q: A snowboarder with a mass of 58.3kg riding on flat ground is slowing down with an acceleration of…

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Q: Mercury has a radius of 1516 miles. As the planet rotates on its axis, a point on its equator…

A: Ans: (a) Angular speed = 38.87 rad./year.(b) Number of rotations = 16 per year.Explanation:

Q: 4. An object was projected from a 100 m height location (point A), with the initial horizontal…

A: Height is Initial horizontal velocity is Initial vertical velocity is Gravitational acceleration is…

Q: Two capacitors (C1=4.6μF, C2=16μF) are charged individually to (V1=15.3V, V2=6.9V). The two…

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Q: Suppose a 950-kg car climbs a 2.05\deg slope at a constant speed of 27.5 m/s. Calculate the power…

A: Mass of car (m) = 950 kgSlope angle () = 2.05 degreeSpeed of car (v) = 27.5 m/sWind resistance and…

Q: At what speed relative to the lab will a 0.272-kg object have the same momentum as a 1.30-kg object…

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Q: 2) A square loop with sides of length 0.2 m is moving at a constant speed of 0.2 m/s into a region…

A: The objective of the question is to understand the change in magnetic flux through a square loop as…

Q: A 17.0-μF capacitor is charged by a 150.0-V power supply, then disconnected from the power and…

A: The objective of the question is to calculate the oscillation frequency of the circuit, the energy…

Q: A 17.0-m length of hose is wound around a reel, which is initially at rest. The moment of inertia of…

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Q: Consider the line dipole made of aligned line sink and source of equal strengths m. Let the sink be…

A: The objective of the question is to derive the potential of a line dipole at large distances and…

Q: Suppose you measure a standing person’s blood pressure by placing the cuff on his leg 0.525 m below…

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Q: The pressure drop along a length of artery is 103 Pa, the radius is 9.5 mm, and the flow is laminar.…

A: Pressure drop along the length of the artery = 103 Paradius of artery = 9.5 mm the flow of blood is…

Q: Find the center of mass of the thin half-disk whose region is bounded above by the semicircle and…

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Q: An object is 20 cm to the left of a thin diverging lens having a focal length of -30cm. Where is the…

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Q: 1. A refrigerator operating reversibly extracts 45.0 kl of heat from a thermal reservoir and…

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Q: 12 The figure above shows two long parallel, straight wires carrying currents, I₁ = 10 A and I₂ =…

A: Current on wire 1 is  leftward.The current on wire 2 is  rightward.Distance between wires is…

Q: 10. (a) Two lenses are separated by 35 cm. An object is 20 cm to the left of the first lens. (i) The…

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Q: 10. An object weighing 245 N is supported by a uniform 120 N horizontal beam as shown in the figure.…

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Q: Convert 0.458 km to units of roots. 1 root = 2555 cm Only typed solution

A: d=0.458 km1 root=2555 cm

Q: 75. Load R1 R2 R3 Total R1 Resistance Voltage 20Q2 25 Q 30 Q R2 O 133 watts O 53.19 watts 44.32…

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Q: A mountain biker encounters a jump on a race course that sends him into the air at 44.8 degrees to…

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Q: When a 200 ohm resistor, a 300 microfarad capacitor (uF) that's initially uncharged, and a 6-volt…

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Q: A mountain bike encounters a jump on a race course that sends him into the air at 44.8 degrees to…

A: The objective of this question is to find the launch speed of the mountain bike. This can be done by…

Q: Calculate the magnetic field strength needed on a 200-turn square loop 22 cm on a side to create…

A: Given number of turns = N = 200the side length = L = 22cm = 0.22mthe maximum torque = Tmax = 285…

Q: Taking north to be the positive y direction and east to be the positive x direction, a particle's…

A: The objective of the question is to find the time at which the particle is traveling exactly…

Q: A homogeneous wire of length L, bent into a semicircle so that its radius becomes R, as shown in the…

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Q: Problem 2: In the circuit below, AV bat = 10 V and C₁ = C₂ C3 C4 C5 = 10 μF. a) What is Ceq? Answer:…

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Q: Determine the magnitude of the electric field at any point P a distance x from a very long line (a…

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Q: kitchen counter. The same pressure is exerted on the table by each of the weights of the cans;…

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Q: A 2.0g lead bullet moving at a speed of 200m/s becomes embedded in the 2.0kg wooden block. Assume…

A: Mass of bullet, m=2.0 g=0.002 kgSpeed of the bullet, u=200 m/sMass of the wooden block, M=2.0 kgLet…

Q: 5. Calculate the time displacement for each of the given waves, stating lead or lag. (a) (b) (c) 20…

A: The objective of the question is to calculate the time displacement for each of the given waves and…

Q: Please don't provide handwritten solution ...

A: Step 1Capacitor charging voltage equation:For the time stretch 0<t< 3.5 seconds, the battery…

Q: The changes of magnetic flux passing through a loop in terms of time in induction are shown in the…

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Q: Determine the strength of the electric field needed to induce a dipole moment of 1.2 mD in a…

A: The objective of the question is to find the strength of the electric field required to induce a…

Q: A 1.10-kg object slides to the right on a surface having a coefficient of kinetic friction 0.250…

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Q: Use this light curve of a star with a transiting exoplanet to answer the following. If the exoplanet…

A: Required to find the average orbital distance.

Q: A bowler projects an 8-in.-diameter ball weighing 12 lb along an alley with a forward velocity v, of…

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Q: The figure shows a long straight wire near a rectangular current loop. What is the direction and…

A: Write the expression for the magnetic force.Here, I is the length, and B is the magnetic field.

Q: 69. Load R1 R2 R3 Total R1 Resistance Voltage 2002 25 Ω 30 Q R2 100 Volts R3 Current What is the…

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Q: Chapter 25: Problem 1: Suppose a man stands in front of a mirror as shown in the figure. His eyes…

A: The bottom of the mirror should be hb = 0.925 meters above the floor.  The top of the mirror should…

Q: This picture shows if you just kicked a rock on the sidewalk and it is now sliding along the…

A: The direction of the net force will depend on the magnitudes of Fk​ and Ff​. If the kick force is…

Q: A particle P moves along a curved path that can be described by the equation y=x^2. The speed of the…

A: So, velocity is clearly given as:v=i^+2xj^​    ( Velocity only depends on x) And acceleration…

Q: emf RA ww RB ww R₁ ww ww R₂ C Rc ww Find the intensity of the current in Amperes through the…

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Q: Current Attempt in Progress A gymnast is performing a floor routine. In a tumbling run she spins…

A: Ans: time taken =0.5 sec  take by the maneuverExplanation: Ans:Angular acceleration is the rate of…