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Two long parallel wires 5.50 cm apart carry 15.5 A currents in the same direction. Determine the magnetic field strength at a point 12.0 cm from one wire and 13.2 cm from the other.
A concave mirror has a focal length of 34.1 cm. The distance between an object and its image is 52.8 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the cente
Assuming the energy of a single pulse is delivered to a volume of the cornea 1 mm3, and assuming the pulses are delivered so quickly that the energy deposited has no time to flow out of that volume,
This change leads to the appearance of a 7.8-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 O. The mutual inductance between the two coi
A 5.0 mm diameter proton beam carries a total current of 1.5mA. The current density in the proton beam, which increases with distance from the center, is given by J = Jedge(r/R), where R is the radi
A car moves with a speed v on a horizontal circular highway turn of radius is R = 100. Assume the height of the car's center of mass above the ground is h = 1 m, and the separation between its inner
(a) What is the electric force exerted on an electron when it is 3.0x10^-15 m from the center of the nucleus? (b) What is the acceleration of the electron at this point?
The AC storage has an rms voltage of 100.0V and as angular frequency of 10.0*10^3 rads/sec find: (a) Find the resistance of the capacitor and the inductor
What is the velocity of A relative to B? (Express your answer in terms of the unit vector I-hat and J-hat, where I-hat is toward the east)
You throw a ball, m = 2kg from the top of a 30 m cliff, with a initial velocity of 25 m/s at an angle of 50 degrees. a) Using energy considerations, what is the maximum height of the ball?
You throw a ball, m = 2kg, with an initial velocity of 20 m/s at an angle of 60 degrees from the top of a 30m cliff. a) Using energy considerations, what is the magnitude of the velocity when it hit
A). What's the time constant τ? I calculated τ to be 0.016 s or 16 ms which came back correct. It is the next part that I am having trouble with. B). Find the potential differences across th
You compress a spring with k=3000 N/m a distance of 0.3m with a block of mass 4kg. After you compress the spring, you release the block. After being released, the block hits a rough surface with a c
Bruce places a 2.0kg block over a small hole on a table. He then puts a gun under the table and shoots a 35.0g bullet into the block where it lodges. If the block rises1.3m above the table, how fast
a) What is the velocity of the block after it leaves the spring but before it gets to the incline? b) How far up the incline (along the hypotenuse of the triangle) does the block travel?
An archer puts a 0.30-kg arrow to the bowstring. An average force of 201 N is exerted to draw the string back 1.3 m. Assuming that all the energy goes into the arrow, with what speed does the arrow
A 4kg watermelon is balanced on Bruce's shaved. R. Lee Ermey, who hates watermelons with every fiber of his being, shoots a 50g arrow at it with a speed of 30m/s. The arrow passes through the melon
A 24-hp electric motor provides power for the elevator in a 6 story building. If the total weight of the loaded elevator is 2200 lb, how long a time does it take to rise 96ft from the first to the s
A proton has an initial speed of 4.9 x 105 m/s. (a) What potential difference is required to bring the proton to rest?
A boxer receives a horizontal blow to the head that topples him over. The force, of magnitude 1.35 x 103 N, is applied for 1.7 x 10-2 s at a point 1.67 m above the floor. The boxer has a moment of ine
A hair dryer has a power rating of 12000w at 120v rms. assume that the hair dryer is the only resistance in the circuit. What is the resistance of the heating element?
The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 6.4 cm from the origin O. For each of the situations in the drawing, de
A gas bubble from an explosion under water oscillates with a period T~(p^a)(d^b)(e^c). Where p is the static pressure, d is the water density, and e the total energy of the explosion. Find a, b, and
What will be the angular velocity of the platform if the person moves the axis of the wheel so that it points vertically upward?
If all the energy stored in the spring was transferred to the box how high will it rise above the unstretched position?