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An certain resistor dissipates 0.5 W when connected to a 3 V potential difference. When connected to a 1 V potential difference, this resistor will dissipate:
A block of mass m collides elastically with a block of mass M. Before the collision, m is moving with velocity vx = V and M is moving at vx = -3.0V. Afterwards, M is moving at vx = 3.3V. (a) What i
What is the magnitude of the force exerted by the water on the bottom of the container?
One half mole of ideal gas is taken front state a to state c. (a go down to b and b to c in a line) a pressure is 4.0x10^5, V is .002m^3, b pressure is 2.0x10^5, V is .003m^3 and c pressure is 2.0x
A solenoid of radius 2.40 cm has 430 turns and a length of 19.0 cm. (a) Find its inductance. (b) Find the rate at which current must change through it to produce an emf of 74.0 µV.
A child loses his balloon, which rises slowly into the sky. If the balloon is 16 cm in diameter when the child loses it, what is its diameter at the following altitudes? Assume that the balloon is v
The magnitude of this field varies with time according to B= 3.47t3, wheretis measured in seconds and Bin teslas. What is the induced current in the coil att= 2.53 s?
The pressure in each of your car tires is 2.10 multiply.gif 105 Pa. The mass of your car is 1700 kg. Assuming that each of your tires bears one-quarter of the total load, what is the contact area o
A 0.245-H inductor and a 290 Ω resistor are connected in series to a 15.0-V battery. What is the maximum current that flows in the circuit?
Two straight rods 55 cm long and 1.4 mm apart in a current balance carry currentI,each in opposite directions. If a mass of 1.3 g when placed on the upper rod balances the magnetic force of repulsi
Calculate the magnetic field strength at the proton due to the orbital motion of the electron in then= 2 state
If the animals can manage to hold on, what are their speeds as the rod swings through a vertical position?
Two converging lenses, each of focal length 15.2cm, are placed 40.9cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed? What is the magnification of
A 7.96 m × 14.42 m swimming pool slopes linearly from 1.42 m depth at one end to a 3.04 m depth at the other. What is the mass of water in the pool?
If the image is virtual, what is the object location for which the magnitude of the image distance is one third the magnitude of the object distance? (Enter distance in cm from the front of the mirr
Taking the magnitude of the Earth's magnetic field to be 4.01·10-5T, what is the maximum induced potential difference in the ring?
A dentist uses a mirror to examine a tooth that is 1.00 cm in front of the mirror. The image of the tooth is formed 5.0 cm behind the mirror. (a) Determine the mirror's radius of curvature. cm (b) D
An experimenter adds 970 J of heat to 1.75 mol of an ideal gas to heat it from 10.0C to 25.0C at a constant pressure. The gas does +223 J of work during the expansion. A) Calculate the change in int
A) For a pressure of 1.00 atm and a temperature of 27.0 C, use the ideal gas law to estimate the number of air moleculas in the room.Assume all the air is N2. B) Calcule the particule density-that
A light ray traveling in a slab of crown glass surrounded by air. The ray is incident on the right surface at an angle of 55° with the normal and then reflects from points A, B, and C.
Will this tension exceed the yield strength of iron? Compare the thermal stress in this band to the yield strength for iron.
If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost? operating an electric oven for4.0h if it carries a current of 20.0 A at 220 Voperating an e
What current does he register there if the temperature is -88.0°C? Assume that no change occurs in the wire's shape and size.