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A particle (m = 3.0 µg, q = 5.0 µC) moves in a uniform magnetic field given by (60j)mT. At t = 0 the velocity of the particle is equal to (30j - 40k) m/s. The subsequent path of the part
A 0.072m X 0.045 m steel beam of length 3.7m is heated from 293Kelvin to 372Kelvin. What is the new length of the beam? What is the strain in the beam?
An 14 m by 8.5 m house is built on a concrete slab 27 cm thick. What is the heat-loss rate through the floor if the interior is at 28 degrees celcius while the ground is at 18 degrees celcius?
A piece of copper at 320 degrees celcius is dropped into 1.9 kg of water at 16 degrees celcius. If the equilibrium temperature is 21 degrees celcius , what is the mass of the copper?
The wall is 0.12 m thick and has an area of 9.9 m2. Assume that one kilowatt · hour of electrical energy costs $0.15. How many hours are required for one dollar's worth of energy to be conduc
If this amount of energy were used to accelerate the ice from rest, what would be the linear speed of the ice?
The ruler has a cross-sectional area of 1.70 x 10-5 m2, and it is made from a material whose coefficient of linear expansion is 2.00 multiply.gif 10-5 (C°)-1. What is Young's modulus for the mater
An ideal gas in a balloon is kept in thermal equilibrium with its constant temperature surroundings. How much work is done if the pressure is slowly reduced and the balloon expands to 5.0 times its
A 100 g ice cube at -10° C is placed in an aluminum cup whose initial temperature is 70° C. The system comes to an equilibrium temperature of 20° C. What is the mass of the cup?
You have a mechanism by which you can use a magnetic spectrograph to chose the energy of the beta rays from a 137Cs source. Your spectrograph only allows beta rays of 0.8 MeV to exit.
A frictionless pulley in the shape of a solid cylinder of mass , M=3kg and radius R=0.4, is used to draw water from a well. A bucket of mass, m=2kg, is attached to a cord wrapped around the cylinddr
The Hall voltage across a conductor in a 55.0 mT magnetic field is 1.90 mV. When used with the same current in a different magnetic field, the voltage across the conductor is 2.80 mV. What is the st
A 2.00 g plastic bead charged to -4.00 nC and a 4.00 g glass bead charged to +8.00 nC are 2.00 cm apart (center to center). What are the accelerations of (a) the plastic bead and (b) the glass bead?
A candle 8.80 cm high is placed in front of a thin converging lens of focal length 40.0 cm. What is the image distance i when the object is placed 105.0 cm in front of this lens?
A flashlight beam is emitted 7.53 cm beneath the (still) surface of the ocean by a scuba diver, and strikes the surface 6.75 cm away from the point directly above the flashlight. If this is the clos
During the first second (1s) the ball is accelerated inside the cannon barrel and experiences a net force of 50000 N towards the barrel opening (being pushed by gases produced by burning gun powder
A wave on a string is described by the equation y=0.150 m sin (1.795x + 2010.6t) , where y is the vertical distance in meters, x the horizontal distance in meters, and t the time is seconds. (i) Wh
A cosmic ray particle travels directly over a football field, from one goal line to the other, at a speed of 0.454c. a. If the length of the field between goal lines in the Earth frame is 91.5 m, wh
Light of wavelength 458 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 3.49 m from the slit. The distance on the screen between the central maximum and the third mini
In a double-slit interference experiment, the wavelength is 478 nm, the slit separation is 0.140 mm, and the screen is 33.0 cm away from the slits. What is the linear distance between adjacent maxi
A camera lens (n = 1.50) is coated with a thin film of potassium bromide (n = 1.56) of thickness 87.9 nm. What wavelength in the visible spectrum is most strongly transmitted through the film?
The capacitor has a cross-sectional area A and a distance between plates of 10 mm. A battery with voltage of 30 volts is connected across the plates of the capacitor.
An aluminum cup of 95 cm3 capacity is filled with glycerin at 18°C. How much glycerin, if any, will spill out of the cup if the temperature of the cup and glycerin is raised to 31°;C? (The c
A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5.65 g being converted to steam. The final temperature of the system is 100°C. Neglect energy transfe