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An air conditioner draws 18A at 220-V ac. The connecting cord is copper wire with a...
When light with a wavelength of 221 nm is incident on a certain metal surface, electrons...
Particles pass through a single slit of width 0.200 mm (see Figure 29.14). The de Broglie...
Acceleration is -9.8 m/s^2. Answer 11 and 12 and show your work. 11. Two identical baseballs...
A soccer ball of mass 0.31 kg is rolling with velocity <0, 0, 2.1> m/s, when...
8) A 0.280 kg glider moving at a 0.900 ?̂ m/s on horizontal track collides elastically...
[A particle with charge 6.40×10−19 C is placed on the x axis in a region where...
6) An object of mass 1.10 kg makes a completely inelastic collision with an object of...
A beam of light strikes a sheet of glass at an angle of 58.0 ∘ with...
Maria is filling a bucket of water from a faucet. After she turns it on, she...
A guitar string is plucked and set into vibration. The vibrating string disturbs the surrounding air,...
A solid metal ball of radius 1.6 cm is located near a hollow plastic ball of...
Two separate, coherent lasers generate waves whose wavelengths are 0.1m. The two waves travel and arrive...
An explosion breaks an object into two pieces, one of which has 1.5 times the mass...
Suppose a 185 kg motorcycle is heading toward a hill at a speed of 32 m/s....
A block with mass m1 = 10 kg moving at 5 m/s collides with another block...
(−120 k) x (Dxi + Dyj) + (120j −160k) x T i + (80k − 200i)...
Block 1, of mass m1 = 5.30 kg , moves along a frictionless air track with...
Sand moves without slipping at 6.0 m/s down a conveyer that is tilted at 15∘. The...
6. A cube of aluminum 10.0 cm on each side is cooled from 111 °C to...
Assume Earth to be a uniform, solid, rotating sphere in a completely isolated system. a) Calculate...
A spherical brass shell has an interior volume of 1.20 × 10 − 3 1.20 ×...
A 58 kg woman steps onto an up-going escalator, which has an incline of 32∘ with...
At a certain instant, the earth, the moon, and a stationary 1450kg spacecraft lie at the...
A particle of mass 2 kg and velocity 5 m/s collides head on with another particle...
You have a ball (volume V, average density ρB) and a glass beaker. The ball is...
Suppose that, at t=6.00×10−4 s, the space coordinates of a particle are x=255 m, y=35.0 m,...
1. at constant speed the forces exerted by the spring scale and friction are equal in...
Consider a sheet of paper with a thickness of 0.1 mm and a dielectric constant of...
Consider a sheet of paper with a thickness of 0.1 mm and a dielectric constant of...
1. A bottle of mass 0.5 kg is given an initial velocity of 2.3 m/s on...
The Challenger Deep in the Mariana Trench is the deepest known point in Earth's oceans. The...
2.A hydraulic car lift has an input piston of radius 6.20 cm and negligible weight. The...
A 15.5 m uniform ladder weighing 480 N rests against a frictionless wall. The ladder makes...
Matter and matter attract each other. What about matter and antimatter? They repulse? Also attract?
1.30 [2pt] Imagine 2 identical capacitors with C = 1F having a charge Q =1 C....
Consider a conducting sheet with dimensions 1m by 1m by 1mm. A charge of 1 C...
Explain why the answers are correct? 5. In an AC circuit, ∆VC and ∆VCircuit are always:...
An ice skater is preparing for a jump with turns and has his arms extended. His...
During a hurricane, the atmospheric pressure inside a house may blow off the roof because of...
A medium attenuates ultrasound at a rate of 0.7dB cm-1 MHz-1. A target at a depth...
1.12 [2pt] Consider one infinitely long straight wire with a uniform charge density of 1 C/m....
A spacecraft of mass 6.00 ? 104 kg is in a circular orbit at an altitude...
1.8 [3pt] How many electrons should we transfer from Earth to Sun in order to match...
Field Sources: Consider the following electric field (where ? and ? are constants): ?(?, ?) =...
Planets are not uniform inside. Normally, they are densest at the center and have decreasing density...
A train with a total mass 8.00E+6kg rises 775m as it travels a distance of 55.0km...
Mercury has 0.055 the mass of the Earth and 0.38 the radius of Earth. What would...
The drive propeller of a ship starts from rest and accelerates at 2.90 × 10−3 rad/s2...
How do you determine the direction of the force acting on an object when given its...
consider a square well if infinite sides of width L: a) Calculate the energy and wavelength...
The distance between two lamp posts is 50.0 m. When a 1.0 kg hen perches just...
A track is mounted on a large wheel that is free to turn with negligible friction...
A rhinoceros beetle rides the rim of a horizontal disk rotating counterclockwise like a merry-go-round. If...
We focus on the geothermal effect in a slightly different manner than in Example 11.3. We...
please, choose the correct answer and explain Why do you choose this answer? In a complete...
Consider a typical adult weighing 165.0 lb and possessing a density of 987.0 kg/m3. What is...
A 3.00-kg block is moving to the right at 2.30 m/s just before it strikes and...
Consider a diver who takes a deep breath before entering the water. In this case, the...
1. Which of the following facts best explain why it is hotter in the summer and...
Two particles are created in a high-energy accelerator and move off in opposite directions. The speed...
Light with a frequency of 3.70 × 1015 Hz strikes a metal surface and ejects electrons...
A solid disk of mass m1 = 9.3 kg and radius R = 0.21 m is...
A ball with a mass of 2.0 kg is dropped from a height of 1.5 m....
You pull a your friend along in a sled (combined mass is 65 kg), by pulling...
Can we use the equation Fnet=ΔpΔtFnet=ΔpΔt when the mass is constant? a. No, because the given...
A: An airplane has an effective wing surface area of 18 m2 that is generating the...
Chapter 12, Problem 012 The Eiffel Tower is a steel structure whose height increases by 19.1...
018 (part 1 of 2) A jet aircraft is traveling at 211 m/s in horizontal flight....
Driving on asphalt roads entails very little rolling resistance, so most of the energy of the...
One leg of a Michelson interferometer contains an evacuated cylinder of length L, having glass plates...
A student holds a laser that emits light of wavelength 632.6 nm. The laser beam passes...
Question 1) A Hertzsprung-Russell diagram shows stars on a plot of ________ a. apparent brightness vs....
The surface tension of a particular liquid is 0.052 N/m. Several spherical bubbles of this liquid...
In a football game, a tackle running at a constant speed of 5 m/s tackles a...
You are given a number of 10 Ω resistors, each capable of dissipating only 1.0 W...
A common flashlight bulb is rated at 0.300 A and 2.80 V (the values of the...
A block with mass m1 = 0.450 kg is released from rest on a frictionless track...
The bottom of a flat-bottomed aluminum boat has area = 4.10 m2 and mass = 65.0...
Maria is filling a bucket of water from a faucet. After she turns it on, she...
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