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You would like to store 9.4J of energy in the magnetic field of a solenoid. What is the energy density (energy/volume) inside the solenoid
During a particular process, the pressure of the gas in a heat engine increases from 1.15×105 Pa to 2.37×105 Pa, What is the work associated with the process
A dolphin emits ultrasound at 100 kHz} and uses the timing of reflections to determine the position of objects in the water
A 2.0-kg cart is rolling along a frictionless, horizontal track towards a 1.0-kg cart that is held initially at rest. find the total momentum of the system of the two carts
Consider a Van de Graaff generator with a 30.0 cm diameter dome operating in dry air. what is the maximum potential energy of the dome
Two charges are placed on the x axis. One charge (q1 = +8.97mC (microC)) is at x1 = +3.40cm, Calculate the net electric field at x = 0cm
The displacement of a wave traveling in the negative x-direction is y(t)=( 5.6cm )cos( 5.2 x + 73 t), find the wavelength, frequency, and speed of this wave
A cylindrical capacitor consists of a cylinder (of length L and radius a) with a total charge Q nested inside a thin conducting cylindrical shell (of length L and radius b) with total charge -Q
Four objects are situated along the y axis as follows: a 2.01 kg object is at +3.16 m, Where is the center of gravity of this system
The distance between the objective and eyepiece lenses in a microscope is 20 cm. What eyepiece focal length will give the microscope
Two, concentric, thin spherical shells of radii R1 = 28.3 cm and R2 = 35.4 cm are uniformly charged with a total charge Q1 = -63.5 ?C, What is the potential of the outer shell
The question needed to answer this one is "An 800. kg race car has a coefficient of static friction of 0.98 with the road. What is the minimum radius of the turn
A football is thrown horizontally with an initial velocity of (18.9 m/s)x. Calculate the direction of the velocity with respect to the positive x-axis at this time
A vector A has a magnitude of 52.6 m and points in a direction 19.4° below the positive x axis. calculate the magnitude of the vector C
A 1-megabit computer memory chip contains many 60.0 fF capacitors. Each capacitor has a plate area of 21.0x10-12 m2. Express the plate separation in nanometers
Two large flat planes are separated by a distance d. the plates are connected to a battery. Write an expression for the capacitance
A 5.43 kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. find the speed of the block at the equilibrium position of the spring
A 10720 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 35 mph, 33 degrees East of North. calculate the force of the wind on the boat
A 75-kg canoeist stands in the middle of her 20-kg canoe. The canoe is 3.0 m long, Calculate the distance from the canoeist to shore
A chemist uses a mass spectrometer to determine the amounts of specific kinds of air pollution in an air sample. What is the diameter of the circular path of NO (nitrous oxide) molecules
During a severe storm in Palm Beach, Fla., on January 2, 1999, 33 inches of rain fell in a period of nine hours. estimate the average upward force exerted by one square meter of ground to stop the fal
The circuit in the figure below consists of wires at the top and bottom and identical metal springs in the left and right sides. estimate the magnitude of the magnetic field
A model rocket launches with an initial velocity of 7 m/s, at an angle of 81 degrees (with respect to the horizon). How far does the rocket travel in the horizontal direction
A copper wire has a resistance of 0.500 ? at 20.0ºC , and an iron wire has a resistance of 0.525 ? at the same temperature
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, What is the magnitude of the body's acceleration