A beam rests on a fulcrum, 1.4 meters from one end. A weight of 495 kg is suspended from this end causing the beam to balance. If the weight of 495 is suspended on the opposite end of the beam, it is necessary to suspend a 2795 kg weight on the first end in order to effect an even balance. Use g = 9.81 m/s2.

Q: A pumping station uses a Venturi tube to measure the flow rate of gasoline. The density of the…

A: Given Data:- Density of gasoline is ρ=7.10×102 kg/m3 Radius of the inlet tube is ri=3.62 cm Radius…

Q: A fixed 13.3-cmcm-diameter wire coil is perpendicular to a magnetic field 0.59 TT pointing up. In…

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Q: Fred and George are 19.0 years of age when they left earth to travel to a distant planet 12.0…

A: GIVEN: Age of both twins Fred and George =19 yrs distance d =12 ly speed of Fred  v1 =0.9c speed of…

Q: A ball with a volume of 0.72 m3 is floating on the surface of a pool of water. (The density of water…

A: When an object is submerged in a fluid, it displaces some fluid and experiences an upward force…

Q: Refer to the procedure part. Assume xcm= 50.0 cm, 150.0 g is suspended from a hanger clamp at the…

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Q: Two long straight current-carrying wires are lined up parallel to one another at a distance d.…

A: I1 = 4 A (current in first wire) I2 = 2 A (current in second wire) magnetic field at the midpoint =…

Q: Work amounting to 12 Nm is needed to compress a spring to 4 m from its natural length of 1 m. How…

A: Given Work done in first compression is W1=12 Nm Compression of the spring in first case is ∆x1=4-1…

Q: The figure below shows five resistors and two batteries connected in a circuit. What are the…

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Q: Pressure cookers increase cooking speed by raising the boiling temperature of water above its value…

A: Given data: The pressure is required at temperature T=125℃.

Q: When an ambulance passes by, the siren’s pitch changes.  The sounds becomes higher-pitched as it…

A: When there is relative motion between source and observer hen Doppler effect takes place .

Q: Sound will travel the fastest at 20°C in   Air   Wood   Glass   It will travel the same in all…

A: Sound will travel faster in glass because the particle density of glass is much higher than air and…

Q: 3. A uniform magnetic ficld is given by B = btk where b = 0.35 T/s. Find the induced current in a…

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Q: Consider the given circuit, using the Kirchhoff's Law, find the value of V3 (in Volts) given the…

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Q: A single-turn square loop of wire, 2.00 cm on each edge, carries a clockwise current of 0.230 A. The…

A: Answer:-  Given  Length of each side of the loop(L) =2.0 cm =  2 × 10-2 m  Current in loop(I1) =…

Q: 10. A horizontal pipe of diameter d1 = 10 cm carrying water has a constriction of diameter d2 = 4…

A: The flow rate is 8.0513 × 10-3 m3/sec

Q: Three capacitors of capacitances 2 μF, 4 µF, and 6 µF are connected in parallel. (a) Find the…

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Q: Printir The next six questions pertain to the situation described below. A circuit is constructed…

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Q: A schematic of a homemade hydraulic jack is shown in the figure below, with cylindrical tube ends of…

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Q: What is the magnitude of the electric field due to a 4.0×10^-9 C charge at a point 0.020 m away?

A: Given data:  Charge (q) = 4.0×10-9 C Distance (r) = 0.020 m Required: Electric field (E)

Q: Resolve the force F1 and F2 into components acting along the u and v axes. 70° 30° 45° F = 300 N %3D…

A: We have a a force of magnitude F1=300 N making an angle 30o with the u axis and another force of…

Q: What is the velocity of light in alcohol (N=1.36)? 3 x 108 m/s а. d. 4.08 x 10š m/s b. None of the…

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Q: Two batteries, ɛ_1= 6 V, 0.25 2, and ɛ_2=12 V, 0.5 N are connected series-opposing. An external…

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Q: A certain particle has a half-life of 179. s. What is the decay constant, in s-1?

A: We know thatλ=ln(2)T1/2Hereλ=Decay ConstantT1/2=Half life

Q: Aball is thrown upward in the air, and its height above the ground after t seconds is H(t) = 78 · t…

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Q: Part A In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.2 eV .…

A: According to Einstein's photoelectric equation Maximum kinetic energy = h (ν-ν₀)

Q: 43. What is the rest energy of an electron, given its mass is 9.11×10-31kginvalid-markup? Give your…

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Q: A 2.25 kg solid, uniform disk rolls without slipping across a level surface, translating at 4.00…

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Q: The filament of a tungsten light bulb has a resistance of 125 Ω at 400 ˚C. Determine its resistance…

A: R2 = R1 [ 1+ a (T2 - T1) ] R2 is resistance at 400°C R1=?  a = temperature coefficient of tungsten…

Q: 4) You pull a simple pendulum 1 m long to the side through an angle of 5 degrees and release it. (a)…

A: (a) The bob to reach its bottom point then speed is highest so time is t1= 0.5sec (b) pendulum bob…

Q: A block of an unknown material floats in water with 39% of it below the surface. What is the density…

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Q: To find the distance across a river, a surveyor chooses points A and B, which are 197 ft apart on…

A: Solution: GIVEN: Angle A=47° and angle B=70°. Step1: Draw the sketch of the given situation as shown…

Q: A ball with a volume of 0.74 m3 is floating on the surface of a pool of water. (The density of water…

A: Weight of ball is balanced by force of buoyancy.

Q: Find the angle e given that x = 29 Newtons, y = 118 Newtons, and o = 28 degrees. Note that the…

A: x = 29 N y = 118 N ϕ = 28o

Q: which state heat is added to the system as shown in the PV diagram below? TP 40kPa 30kPa 20kPa…

A: In which state, heat is added to the system

Q: A 1-H inductor is connected in series with a 6-ohm resistor. If the connection is energized from an…

A:

Q: In the figure, the orientation of the transmission axis for each of three polarizing sheets is…

A: intensity of incident unpolarised light  = IoIf = 0.25 Ioθ1 = 15 degree θ2 = 50o

Q: The free energy change for an outer-sphere electron transfer from a donor to an acceptor is -0.12…

A: In the given problem we have to calculate the reorganization energy int he system

Q: You throw a 0.145-kg baseball straight up, giving it an initial velocity of magnitude 20.0m/s. Find…

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Q: A pumping station uses a Venturi tube to measure the flow rate of gasoline. The density of the…

A: Given Density of gasoline is given as ρ=7.10×102 kg/m3 Radius of the inlet and outlet are…

Q: An object is in front of a converging lens with a focal length of 14.0 cm. The image seen has a…

A:

Q: Coulomb's Law (Electric Forces): A particle has charge q (-5.00 nC) [illustrate first the problem -…

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Q: Consider the given circuit, R2 = 10.9 N, and R3 = 17.6 N, what is the value of current passing…

A: Here R2 = 10.9 ohm  Also R3 = 17.6 ohm  Current passing through R3 is I3 = 2A

Q: If 29.5 g of milk at a temperature of 4.20°C is added to a 240-g cup of coffee at a temperature…

A: We have milk of mass m1=29.5 g at temperature T1=4.2oC=277.2 K added to coffee of mass m2=240 g and…

Q: ) A hollow sphere is held below the surface of a lake by a cord anchored to the bottom of the lake.…

A: Explanation: Buoyant force is a force a fluid exerts on a submerged object. It can be calculated as:…

Q: If 31.0 g of milk at a temperature of 4.05°C is added to a 260-g cup of coffee at a temperature…

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Q: A schematic of a homemade hydraulic jack is shown in the figure below, with cylindrical tube ends of…

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Q: 25-kg metal cylinder with a cross-sectional area, Ac = 0.5320 m2 and depth, H = 0.05m was immersed…

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Q: The apparent weight of an object is 40.66 N before it was immersed in water. After submerging the…

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Q: An object with a height of -0.07 m points below the principal axis (it is inverted) and is 0.170 m…

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Q: A system gains 250 kJ of heat at the same time that It is doing 500 ki ol work. Which figure below…

A: The system takes 250 KJ heat(Q).  So, the arrow representing Q is inward.

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.