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A cannon, placed in the valley, fires a shell at 52 degrees with respect to the horizontal line. The initial speed of the shell is 516 m/s, Calculate the range of the shell
If you swim from one point at the edge of the pool to another, along a straight line, what is the longest distance you can swim
A three level laser has energy levels E 1=1.50 eV, E 2=2.50 eV, and E 3=3.50 eV. Level E 2 is the metastable state. What is the lasing wavelength
A 150 g block of ice at 0 C is dropped into 350 g of water at 25 C, compute the final equilibrium temperature
A pulsed laser emits light at a wavelength of 480.7 nm. The pulse duration is 12.1 ps and the energy per pulse is 0.190 J. What is the length of the pulse
Two narrow slits, illuminated by light consisting of two distinct wavelengths, produce two overlapping colored interference patterns on a distant screen. What is the ratio of the two wavelengths
A physicist uses a cylindrical metal can 0.300m high and 0.070m in diameter to store liquid helium at 4.22 K; at that temperature the heat of vaporization of helium is 2.09×104J/kg. How much h
A device used in radiation therapy for cancer contains 0.38 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
A 1.5 kg mass attached it spring with a force constant of 20.0 N/m oscillates in horizontal, frictionless track. At t=0, Determine the total energy of the oscillating system
A water balloon is launched at a building 24 m away with an initial velocity of 18 m/s at an angle of 50 degrees above horizontal, At what height will balloon strike building
Suppose 28.5 kg of 87.5°C water is placed in contact with 28.5 kg of 11°C water. What is the change in heat (in J) of the hot water
An object is placed 6.00cm to the left of a converging lens of focal length 8.00 cm. obtain the position of the final image
You are designing a process to store pressurized argon gas (a monatomic gas). If you pressurize the gas at a constant temperature, how much work must be done on the gas
A 5 L rigid (constant volume) container holds 0.60 moles of helium at an initial temperature of 80 oC, How many moles of gas will be in the container at the final temperature
A block of ice of mass 0.4 kg and initial temperature T = 0 oC is placed in a sealed insulated container full of Helium gas, What is the mass of the liquid water
A heat engine, in each cycle, takes in 750 J of heat and exhausts 300 J of heat. what is the smallest possible high temperature for the engine cycle
A horizontal force of 5.0 N accelerates a 4.0 kg mass, from rest, What friction force acts on the mass
The amount of 14C in an old, isolated sample of vegetation is 0.757 that expected from a present day sample with an equivalent carbon content, Calculate the age of the old sample in years
A 32.0 µF capacitor is connected to a 45.0 omegacap.gif resistor and a generator whose rms output is 30.0 V at 60.0 Hz. compute The phase angle for the circuit
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, find the struck ball's velocity (magnitude and direction) after the collision
A .115 kg mass undergoes simple harmonic motion on a horizontal spring with force constant k= 287 N/m. estimate the amplitude of the motion
An 8kg mass is observed traveling with a speed of .08*c. What is the relativisitic momentum
Suppose a Proton is accelerated through a potential difference of 10 Gigavolts. Determine the proton's final kinetic energy
A laser beam is incident on two slits with a separation of 0.175 mm, and a screen is placed 4.85 m from the slits. estimate the wavelength of the laser light
on april 22, D avid Ortiz of Boston Red Sox hit a home run on a 92mph fastball thrown horizontally from New York Yankee pitcher Masahiro Tanaka. compute the force exerted on the ball by the bat