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A circular loop of wire of radius 6.0 cm has 10 turns and lies in the yz plane. It carries a current of 5 A in such a direction that the magnetic moment of the loop is along the x axis. The magnetic
A firehose must be able to shoot water to the top of a building 28.0 m tall when aimed straight up. Water enters this hose at a steady rate of 0.500 m^3 and shoots out of a round nozzle. A. What is
In astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time in order to gather plenty of light.
To what temperature (in degrees Celsius) must the aluminum alloy cathode be cooled? The expansion coefficient of the aluminum alloy is 2.4E-5.
Use the Hodgkin-Huxley model (equations and parameters from Hoppensteadt) for the nerve action potential to estimate the following:
The sun has a power output of 3.9 x 10^26 j/s in luminous light. (jupiter's distance is 7.8 x 10^11 m , it's radius is 66,854 km and it's mass is 1.90 x 10^27 kg) 1). calculate the radiation pressur
To what temperature (in degrees Celsius) will 67,379 J of heat raise 0.6 kg of water that is initially at 10.0 degrees Celsius?
A constant force of 20 N is applied to an object of mass 8.0 kg at an angle of 25° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.0 m alo
A spherical shell of inner radius 2.0 cm and outer radius 6.0 cm is charged to +9 nC A point charge of -6 nC is placed at the center of the shell. A. What are the charges, Q1 and Q2 on the inner and
The potential on the outer surface of the membrane is +51.6 mV greater than that on the inside surface. How much charge resides on the outer surface?
If the charge in part (a) is due to K+ ions (charge +e), how many such ions are present on the outer surface?
Use Ampere's law to find the magnitude of the magnetic field at a distance ofr = 0.94 m from the wires when the currents are (a) in the same direction and (b) in opposite directions.
The landing speed of an airplane is dependent on the air density. By what percentage must the landing speed be increased on a day when the temperature is 100oF compared to a day when it is 50oF? Ass
A 20 microfarad capacitor is connected in series with a 160 ohm resistor. The capacitor is initially charged to a voltage of 50V. Find how long it takes for the voltage to drop to 10V. Please show a
The distance between an object and its image formed by a diverging lens is 8.70 cm. The focal length of the lens is -4.00 cm. Find (a) the image distance and (b) the object distance.
Calculate the apparent distance between the image of the fish and the front wall.
How much fuel would it take to provide this much energy if all the rest energy of the fuel could be transformed to kinetic energy of the spaceship?
A nearsighted patient's far point is 0.612 m from her eyes. She is able to see distant objects in focus when wearing glasses with a refractive power of -1.7 diopters. What is the distance between h
What should be the refractive power (in diopters) of her glasses (worn 2.6 cm from the eyes), so she can read the newspaper at a distance of 25 cm from the eyes?
(a) How far is the blackboard from her eyes? (b) If the writing on the blackboard is 6.93 cm high, what is the height of the image on her retina?
The induced electric field 13cm from the axis of a solenoid with a 10cm radius is 48V/m . Find the rate of change of the solenoid's magnetic field.
Coil 1 has a radius of 6.7 cm and rotates in a 0.14-T field. Coil 2 rotates in a 0.59-T field. Each coil experiences the same maximum torque. What is the radius (in cm) of coil 2?
A wire carries a current of 0.59 A. This wire makes an angle of 68° with respect to a magnetic field of magnitude 4.0 × 10-5 T. The wire experiences a magnetic force of magnitude 8.1 ×
Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.087 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the o