When an object is experiencing a net torque It is in dynamic equilibrium It is in static equilibrium It is rotating It is translating Does a bridge

Q: Harmonic Oscillator: A 0.40-kg object is attached to a spring with force constant 100 N/m so that…

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Q: A total of 7.9 x 10¹2 electrons move past a point in a wire every 1.45 s. What term best describes…

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Q: When an object falls freely under the influence of gravitythere is a net force mg exerted on it by…

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Q: Ed, Edd and Eddy love to play on a seesaw. It consists of a 1-kg board with a length of 8 meters.…

A: Given data: The mass of board is m=1 kg. The mass of Ed is mEd=55 kg. The mass of Edd is mEdd=40…

Q: One of the two balloons Anthea rubs against her hair, causing the balloons to become charged…

A: Given Charge on balloons q1 and q2= 2 x 106 C  Distance between two balloons( r )= 0.7 m To find…

Q: A high power line carries a current of 4.7 kA. What is the strength of the magnetic field this line…

A: Given data:  Current (I) = 4.7 kA = 4.7×103 A Distance (r) = 7.25 m μ0 = 4π × 10-7 T∙m/A Required:…

Q: An astronaut travels in a rocket along the +x direction with a velocity of 0.50c relative to the…

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Q: Only one force acts on an object. Can the object have zero acceleration? Can it have zero velocity?…

A: Acceleration of an object due to force   acting on it , is given by :- a = (Fnet)/m If only one…

Q: diatomic ideal gas at pressure p and volume V is expanding to three times its initial volume under…

A: diatomic ideal gas at pressure p and volume V is expanding to three times its initial volume under…

Q: Directions: Solve the problem below using the equation in Faraday's Law of Induction. A small 10 mm…

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Q: 8.0 Ω r=20 Ω Μ 9.0V Μ 12.0 Ω

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Q: The current in a series circuit is 15.6 A. When an additional 7.92-Ω resistor is inserted in series,…

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Q: BIO A certain orthodontist uses wire brace to align a patient's crooked tooth as in Figure P4.18.…

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Q: Two resistors, A and B, are placed in series with each other and connected across the terminals of a…

A: Given data:  Two resistors A and B are connected in series combination Required: Total resistance of…

Q: A generator produces 21.0 V when turning at 870 rev/min. What emf does it produce when turning at…

A: emf induced = 21 V when the coild turns at 870 rev/min New angular speed = 510 rev/min Let the…

Q: (q1xq2)/ r^2 where k = 9 x 10^9 C^2/m^2. a) Sketch the charges and use Coulomb's law to determine…

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Q: Two parallel straight wires that are 10 cm apart carry currents I1 = 10 A and I2 = 5 A in opposite…

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Q: A machine uses a step-up transformer where a 110V input is converted to 220V output Calculate the…

A: Given data: Primary voltage, Vp=110 V Secondary voltage, Vs=220 V Number of turns in primary coil,…

Q: A radioisotope has a half-life of 5.00min and an initial decay rate of 8000 Bq. (1.) What will be…

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Q: A. the direction of the induced emf is such that it opposes the change of flux. B. the magnitude of…

A: Lenz’s law states that “The polarity of induced emf is such that it tends to produce a current which…

Q: Calculate the momentum of a 938-MeV proton. Rest energy of proton is 938-MeV

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Q: A 450-gram metal cube, which is originally at 110 degree(s) C, is dropped into a 0.003 m³ volume of…

A: Write the given values with the suitable variables. mc=450 g=0.450 kgT1=110 °CT2=70 °CTf=78…

Q: A force of 200 N is applied to an object of area 4 m² Calculate the pressure ?

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Q: Light of frequency 9.62 x 1014 Hz (312 nm) strikes a surface of calcium (Wo = 2.90 eV). How much…

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Q: Directions: Answer each problem on a separate sheet of paper. 1. A stationary coil is in a magnetic…

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Q: Why does a child in a wagon seem to fall backwhenyou give the wagon a sharp pull forward?

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Q: Mario throws a stone vertically upward with a speed of 25m/s from the top of a tower 75 m high . The…

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Q: A circular coil of radius 2.5 cm has 27 turns of wire. It is placed in a magnetic field directed…

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Q: 5. A nurse (Fig. 6-4) pushes a patient on a cart 20.7 m down a hall with a constant speed of 0.88…

A: Work done = Force ,Fx Displacement S Force ,F exerted on the gurney,  F= W/S = 2000/20.7 = 96.62N…

Q: The voltage in circuit is 30 V and resistance is 4 ohms find current ?

A: Given Voltage in the circuit = 30 V  Resistance of the circuit = 4 Ohms To find out Current in the…

Q: What is a magnetic field? What is its source? Please explain precisely

A: What is a magnetic field? What is its source.

Q: What is the speed of sound in air at 32.3°C?

A: GivenT1=32.3°C=32.3+273=305.3 K

Q: cat Sup- QC (a) Find the tension in each cable supporting the 550-N burglar in Figure P4.17. (b)…

A: (a) The tension in each cable supporting isT1=550N T2 =952.62N   T3= 1100N (b) If the left end of…

Q: Some incandescent light bulbs are filled with argon gas. What is Vrms for argon atoms near the…

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Q: What is the relationship between the time for the ball to reach the maximum height and the time of…

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Q: A circular coil of 20 turns and radius 10 cm is placed n a uniform magnetic field of 0.10 T normal…

A: Torque is the rotational equivalent of linear force. Here, we calculate  the given as follow;

Q: A 0.005 kg of bullet is fired horizontally and hits an-8kg block of wood (initially at rest) which…

A: Let the initial velocity of the bullet is v Initial linear momentum of the bullet is 0.005v Initial…

Q: =lags the cu leads the c

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Q: How much current is in one of the 10 W resistors in the diagram below? 12 V 20.0 Q www 10.0 Q 10.0 Ω…

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Q: What do you think will happen if water is used in a thermometer instead of mercury?

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Q: 3. A mass of 5kg is suspended by two strings 26cm and 33 cm long from two points that are 40cm apart…

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Q: Suppose the inductor is connected in series with a resistor and a capacitor. If V₁, represents the…

A: Since Vc and VL are in opposite phase so Vc must be opposite to VL  VR leads VL by 90°

Q: A 34-turn circular coil of wire has diameter 0.97 m. It is placed with its axis along the direction…

A: Given, Number of turns, N = 34  diameter of the coil, d = 0.97 m Earth's magnetic field, B = 41.0 μT…

Q: A 10 cm long solenoid with 500 turns produces a magnetic field inside it that is 20 times the…

A: Write the expression for the magnetic field inside the solenoid. Here, μo is the permittivity of…

Q: 10. A 2200 kg truck travelling at 68 km/h slams on the brakes and skids to a stop. The frictional…

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Q: brine solution with density of 1230 kg/m³ moves through a constricted pipe in steady, ideal flow. At…

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Q: PRACTICE EXERCISE 7.4 Two smooth reflecting surfaces (A and B) are perpendicular to each other.…

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Q: In a single slit diffraction experin minimum for λ₁ = 660 nm coincides with first max wavelength 2

A: Givenλ1=660 nm=660×10-9 m

Q: If a car tire with a moment of inertia of 4 kg*m² has an initial angular speed of 8 rad/s and then…

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.