A 30 kg child is jogging until he hits a swing with a mass of 4 kg. If he was running at 4 m/s, find the final velocities, and max height of the swing assuming the swing rope is weightless

Q: A uniform ladder of length 3.25 m and weighing 250 N is placed Against a smooth vertical wall with…

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Q: 28.43 A solenoid is designed to produce a magnetic field of 0.0270 T at its center. It has radius…

A: Given: The magnetic field: B = 0.0270 T. The radius: r = 1.40 cm (0.014 m). The length: L = 40.0 cm…

Q: Is work on paper able to be shown? I am still a little confused.

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Give an example of a factor module which is a torque module? Also give an explanation!

A: In this question we have give an example of a factor module which is a torque module. Please give…

Q: Q4 , A piece of transparent material with the refractive index n = 1.5 is cut into the shape of a…

A: Given:  Wavelength λ = 500 nm = 500×10-9 mrefractive idex of the film n = 1.5 To find:  a) the…

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A: The force causes a change in momentum and this rate of change of momentum equals the applied force.…

Q: A 5.0-kg ball is at rest when it is struck head-on by a 2.0-kg ball moving along a track at 10.0…

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Q: A 47.7-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

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Q: a. How high will the ball rise than where it was hit? asnwer in m

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Q: A gyroscope in a mobile phone is used to detect changes in: Select one: pressure altitude linear…

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Q: Vector  a→a→ has components ax = −4.20 m/s2 and ay = +7.30 m/s2. a. What is the magnitude of the…

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Q: CO2 from your Light Bulb 0.0/10.0 puntos (calificado) A 75 W light bulb is used for 12 hours a day.…

A: in this question  we use simple energy consuming by bulb and kerosene lamp.

Q: Draw the structure of quantum dot light emitting diode (Q-LED) What is the role of nanoparticles in…

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Q: A large container, with water 60 cm above its base, has a small outlet pipe on its side. The outlet…

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Q: n ΔABC, given that AB=15 m, BC = 8 m, and <B = 24 degrees, what is the length of side AC?

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Q: A freight train rolls along a track with considerable momentum. If it rolls at the same speed but…

A: Given A train rolls on a track with some momentum. We have to find the momentum of the train when…

Q: A packed bundle of 100 long, straight, insulated wires form a cylinder of radius R = 0.500 cm. (a)…

A: Given:    Number of turns, n = 100     Radius, R = 0.5 cm = 0.5×10-2 m    Current in each wire, I =…

Q: 107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides…

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Q: At a surface temperature of the sun T-5800 k and a diameter R = 7 * 10 m and at the average distance…

A: Given Radius of the sun=r=7.0×108 m Distance to the earth=d=1.47 ×1011m Surface Temperature=T=5800…

Q: A long cylindrical conductor of radius R carries a current I as shown below left. The current…

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Q: Q1/ Fill in the blanks with the correct answer. 1. The net drift current is got from the movement of…

A: Drift velocity : The average speed at which electrons "drift" in the presence of an electric field…

Q: At the beginning of a 3.0-h plane trip, you are traveling due north at 192 km/h. At the end, you are…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: BRIEFLY EXPLAIN AND ILLUSTRATE RIGHT-HAND RULE

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Q: A string is wrapped around a thin-walled cylinder pulley of radius 11 cm and mass of 12.6 kg. If the…

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Q: sound wave with a frequency of 9800 Hz travels along a copper pipe. If thewavelength is 0.370 m and…

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Q: (b) On an old-fashioned rotating piano stool, a woman sits holding a pair of dumbbells at a distance…

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Q: The average lifetime of high-speed muons is 520 μs, as measured in the muon’s reference frame.…

A: The rest time is given as 320 μs and the time at the reference frame is given as 520 μs.

Q: At the beginning of 2006, the rate of energy consumption for the city of Denver was 7000 megawatts…

A: In this question we have to find the function and the total amount of energy. Please give positive…

Q: The question in the book asks if e is true or false. E says, "A photon's energy depends on its…

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Q: What is the minimum work required to a slide a 20 kg box a 35 degree incline if the incline is 2…

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Q: 33. If a box is accelerated at relativistic speeds toward the top of this page which dimension would…

A: Length contraction is a phenomenon that a moving object's length is measured to be shorter than its…

Q: Water flows through a garden hose which is attached to a nozzle. The water flows through hose with a…

A: Speed with nozzle ( unozzle ) = 20.8 m/s  Speed without nozzle ( uwithout nozzle ) = 1.87 m/s

Q: Applying principles of dynamics (with step by steep solutions pls i give 5 stars) A game requires…

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Q: T 1. A uniform disk, such as a record turntable, initially turns at 5.00 rev/s around a frictionless…

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Q: which of the following is  negative work being done?   Question 10 options:   A man pushes with a…

A: Correct option is (c) An object is pushed with a force of 25 N when the frictional force is a…

Q: A projectile of 1.0-kg mass approaches a stationary body of 5.0 kg at 10.0 m/s and, after colliding,…

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Q: A solid cube of side length 11.4 cm is suspended on light string. When the cube is totally immersed…

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Q: Why does the hydrostatic force on one side of a vertical object submerged in water need to be…

A: In order to determine the hydrostatic force against a vertical plate or wall or dam in a fluid we…

Q: The battery below has a potential difference of 568 V. 8. 9. 4.00 cm 4.00 cm Use the following…

A: Let, Potential at level C be VC = 568 V Potential at level D be VD = 0 V Therefore the potential…

Q: An object is placed in front of a concave spherical mirror as shown in the figure. Ray 1, 2, and 3…

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Q: A vector is 21.6 m long and makes an angle of 60.0° counterclockwise from the y-axis (on the side of…

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Q: A thin solid disk of mass 21.6 kg is rotating at 10.6 rad/s about an axis through its center and…

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Q: Consider the diagram below: F₁ = 10 N F₂=5 N What is the net torque on the system? X₁ X₁ = 3m X₂ F2…

A: Given F1 = 10 N F2 = 5 N x1 = 3 m x2 = 5 m We have to calculate the net torque on the system.

Q: A baseball (m = 153 g) approaches a bat horizontally at a speed of 37.6 m/s (84.1 mi/h) and is hit…

A: Given:  Mass of the ball (m) = 153 g = 0.153 KgInitial speed of the all u = 37.6 m/sFinal speed of…

Q: You have a string and produce waves on it with 35.00 Hz. The wavelength you measure is  10.00 cm.…

A: frequency of wave, f= 35 Hzwavelength=0.1 m

Q: The string is 50.00 cm long and weighs 14.00 g. Calculate the linear density of the string. ( in…

A: Given data:  Length (L) = 50.00 cm = 0.5000 m Mass (m) = 14.00 g = 0.0140 kg Required: The linear…

Q: 5. (I) What is the magnitude of the force a +25 µC charge exerts on a +3.0 mC charge 35 cm away?

A: Given Data ; The magnitude of the first charge is given as Q1=+25 μC The magnitude of the second…

Q: In the human nervous system, signals are transmitted along neurons as action potentials that travel…

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Q: Which of the following gives the correct phase angle between the current and generator voltage for a…

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Q: At what angle to a door should one apply a force to produce the greatest torque? 0 30 45 90 O O

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Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.