A current of 0.25 A exists in a 60-ohm lamp. The applied potential difference 15 V O 30 V 60 V 120 V none of these

Q: ne figure below shows a stream of water flowing through a hole at depth h = 13 cm in a tank holding…

A: Given  data as per question H  = 63cm h  =  13cm

Q: A mass m is connected to the bottom of a vertical spring whose force constant is k. Attached to the…

A: The spring oscillates in a regular pattern. When the string oscillates at its maximum amplitude, it…

Q: 1. Starting from rest, a bullet train acquires a velocity of 200 km/h during 20 seconds. What is the…

A: Disclaimer:“Since you have asked multiple question, we will solve the first question for you. If you…

Q: A block with mass m =6.3 kg is hung from a vertical spring. When the mass hangs in equilibrium, the…

A:

Q: A temperature increase of 20 C° is the same as a temperature increase of a) 32 F°. b) 293 K. c) 273…

A:

Q: How should you place a screw on a table such that it exerts the smallest pressure against it?.…

A: Pressure is define as the force per unit are for minimum pressure area should be maximum

Q: One long wire lies along an x axis and carries a current of 42 A in the positive x direction. A…

A:

Q: 44. (a) What is the equivalent resistance between points A and B? (b) A 276-V emf is connected to…

A:

Q: waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch counter.…

A: mass of bottle (m) = 0.45 kg initial velocity (u) = 2.8 msfinal velocity (v) = 0 msdistance moved…

Q: You apply a flame to 1 L of water for a certain time and its temperature rises by 2°C. If you apply…

A: Q = m C dt  Q is the heat applied  m is the mass / quantity of the material C is the specific heat…

Q: The induced magnetic field at radial distance 8.6 mm from the central axis of a circular…

A:

Q: New Window 100 CC Live Captions 11. A spool of thread is mounted on a spindle so that when the…

A:

Q: A unit vector m is along the positive x-axis and the unit vector n in quarant II. The angle between…

A:

Q: See the diagram below. The cart, with a mass of 1Kg, rolls downward on a frictionless surface. What…

A: Given Mass of the cart is m=1 kg Speed of the cart at the bottom of the run is v=10 m/s     We have…

Q: A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20 m along…

A:

Q: A slab of metal has a mass of 5.269 kilogram, an initial temperature of 37.9°C and a melting point…

A:

Q: An iron casting containing a number of cavities weighs 6200 N in air and 3970 N in water. What is…

A: The total volume of the cavities in the casting is 0.147 m3.

Q: 34.  A 0.25-hp motor is used to lift a load at the rate of 5.0 cm/s. how great a load can it lift at…

A:

Q: Imagine that you have a loop of wire with 1 cm radius. The size of b field that passes through the…

A:

Q: If a proton has a kinetic energy of 1.000 GeV, what is its momentum? (m, Mev) = 938.0 MeV/c2 1 Gev =…

A: Kinetic energy, KE =1 GeV=1000 MeV=103 MeV Mass of proton, mp=938 MeV/c2

Q: R1 = 100 2 R2 = 200 2 E R5 = 300 2 R3= 1002 R4 = 150 2 %3D R6 = 1002 %3D If E = 100 V, what is the…

A:

Q: As a staff scientist at a nuclear power plant, it is your job to understand radioactive substances…

A: Here we use law of radioactive decay to find the answer

Q: 2. Two buckets spin around in a horizontal circle on frictionless bearings. Suddenly, it starts to…

A:

Q: Find the buoyant force on a 0.1 m^3 block of wood with density 700 kg/m^3 floating in a freshwater…

A: Given Volume of the block of wood is V=0.1 m3 Density of wood is given as ρwood=700 kg/m3   We have…

Q: A bullet of mass m = 7.50 g is fired horizontally with a speed v = 549 m/s into a bob of a ballistic…

A:

Q: In the figure below, two identical springs of spring constant k are attached to a block of mass m.…

A:

Q: A car is behind a truck going on the highway. The 18 m/s car’s driver looks for an opportunity to…

A: initial speed of the car (u) = 18 msacceleration of the car (a) = 0.60 ms2distance between the car…

Q: A rubber ball is attached to a 2.51-meter string and spun in a horizontal circle. The 27.) tension…

A: Length of string, l=2.51 m Time taken to cover one revolution, t=0.710 s Tension in the string,…

Q: The magnitude of the orbital angular momentum of an electron in an atom is L=20 . How many different…

A:

Q: Which has greater kinetic energy? A) a car traveling at 30 km/hr. B) a car of half the mass…

A: KE=1/2mv^2KEA=1/2(m)(30)^2=450(m) JHalf the mass and add the new velocityKEB=1/2(m/2)(60)^2=900(m) J…

Q: A 2.0-kg purse is dropped from the top of the Leaning Tower of Pisa and falls 55 m before reaching…

A:

Q: 92. Focusing Distance For a camera with a lens of fixed focal length F to focus on an object located…

A: Please see the answer below.

Q: If placed in outer space where there is a near vacuum, a heated object will lose almost all of its…

A:

Q: What are the sign and magnitude of a point charge, in picoCoulombs, that produces a potential of…

A:

Q: A potential energy function for system 1 is given by U1(x) = Cx2 + Bx3. The potential energy…

A: By definition of force  F = -dU/dx

Q: Which one of these following statements is false? O a) A wave does not result in the bulk flow of…

A:

Q: Moment of Inertia (y) Now find the total moment of inertia by adding up (integrating) all of the…

A:

Q: (a) What current is needed to transmit 250 MW of power at 400 kV? (b) What is the power dissipated…

A:

Q: Three polarizing filters are arranged in such a way that the axis of the transmission of the second…

A: Given data:- Angle between first and second polarizer is θ1=10° Angle between second and third…

Q: A 5.0 kg cat and a 2.0 kg bowl of tuna fish are at opposite ends of a 4.0 m long seesaw. How far to…

A: Assume the fulcrum (pivot) is in the middle. Assume the 5kg cat is on the other side of the seesaw…

Q: Suppose 21.0 g of ice at -10.0°C is placed into 300.0 g of water in a 200.0-g copper calorimete the…

A: Given Mass of ice , mice=21 gTemperature of ice, T1=-10°CMass of water, mw=300 gMass of copper…

Q: Find the valur of force applied if work done is 320 J and displacement is 23 m

A: Given data: Work done, W= 320 J Displacement, S= 23 m We know that work done = force x displacement…

Q: A waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch…

A: Given data: The mass of the bottle is m=0.45 kg. The initial speed of bottle is u=2.8 m/s. The…

Q: ( =10 radA B. 0.05 m 0.15 m Given: Gear A is given an angular acceleration a- 4t rad/s², where t is…

A:

Q: 4. An 85 kg running back moving at 7.0 m/s makes a perfectly inelastic collision with a 105 kg…

A:

Q: A 10.0 g marble slides to the left at a speed of 0.400 m/s on the frictionless horizontal surface…

A:

Q: Problem 2:   This problem compares the energy output and heat transfer to the environment by two…

A: Given data: Efficiency of first station η1=36% Efficiency of second station η2=47% Heat Q1=2.5×1014…

Q: . A constant force acts on a 5.0 kg object and reduces its velocity from 7.0 m/s to 3.0 m/s in a…

A: Here we use Newton second law that says force is equal to rate of change of moment with respect to…

Q: 0cm^3 is submerged in a swimming pool. What is the volume of water displaced?. Why?.

A: GivenVolume of object, Vo=100 cm3

Q: What is the minimum power required for a loudspeaker to produce 109 dB sound at a distance of 22.0 m…

A: Loudness of speaker =109 dB  Distance, R =22.0 m