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You combine two thin lenses by placing them in contact so that their axes coincide, Find the focal length of this compound lens
Two linear waves have the same amplitude and speed, and otherwise are identical except one has half the wavelength of the other, Which transmits more energy
Consider an object attached to an ideal spring that oscillates according to the equation x=(34.0 cm) cos (8.10£) where £ is in seconds. what is the mechanical energy of the oscillations
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.06 nm. What is the final state of the hydrogen atom
a uniform stick 1.5 meters long With a massive 220 kg is pivoted at its center a 3.9 kg bullet is shot through the stick midway between the pivot, What is the angular speed of the spinning stick
In a baseball game, the catcher stops a 35 m/s pitch. How much net work is done on the baseball as it is caught? what average force did the mitt exert on the ball
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 105 m below
A 2300 kg truck traveling north at 39 km/h turns east and accelerates to 57 km/h. What is the change in the truck's kinetic energy
A loop of diameter d=12 cm, carrying a current I = 0.40 A is placed inside a magnetic field B=(02.0 T)i + (0.40 T)j. Calculate the potential energy of the loop
A charge of 2.5 Coulombs is uniformly distributed throughout a nonconduction sphere of radius 0.15 m. calculate the charge density in the sphere
A muon is created at the top of Mount Kamet (height 7,800 m) and travels at constant speed to sea level, what is the height of Mount Kamet
Given a metal which has a coefficient of volume expansion given by B(T) = 8.0x10^-6 K^-1 + (1.2x10^-8 K^-2)T caluclate the work done by this is obaric process
A light bulb is placed 22.2 cm in front of a concave mirror. Calculate the focal length of the concave mirror
A 13cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 60?C. What is the final length of the cylinder
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
An engine has an efficiency of 63% and produces 6461 J of work. Determine the rejected heat
A 0.49 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.20 m. Determine the total energy of the system
The equation of a transverse wave traveling along a very long string is y = 6.5 sin (0.045 ?x + 6.0 ?t), Determine the amplitude of propagation of the wave
cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.10-kg tumor. How many protons are absorbed by the tumor
Find the energy released in the fusion reaction 2/1H+ 3/1H? 4/2He+n. The mass of 2/1H is 2.014102 u
An electron and a positron, each moving at3.0×105m/s, collide head on, disappear, Determine the momentum of each photon
A tuning fork is sounded above a resonating tube (one end closed) which resonates at a length of 0.32 m, What is the frequency of the fork
A 16.0?m length of wire consists of 7.0m of copper followed by 9.0m of aluminum, both of diameter 1.2mm. What is the voltage across the copper part
A goldfish is swimming inside a spherical bowl of water having an index of refraction n = 1.333. find the apparent distance of the goldfish from the wall according to an observer outside the bowl