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Two long straight wires are parallel and carry current in opposite directions. The currents are 8.00 and 12.0 A and the wires are separated by 4.00 cm. What is the magnetic field in Tesla at a point
Calculate the pH of a solution that has an ammonium chloride concentration of 0.050M and an ammonia concentration of 0.045M. Explain using an ice diagram, if possible.
How large a current (in the equatorial plane) would be required to produce such a field?
A 2.5 T magnetic field passes through a circular ring of diameter 3.0 cm at an angle of 30o with the normal. Find the magnitude of the magnetic flux through the ring.
A block is made of an unknown material. When placed in water , the block floats and 4 m^3 of the block is observed to be above the surface of the water. When a seacond block with the same dimension
A point charge Q=10^-9 coulombs is placed at the centre of a dielectric sphere of radius R=10cm. The relative permittivity of the dielectric is 2. Find the volume polarization density within the die
Derive an expression for the maximum angle the string swings with respect to the vertical axis after the collision.
When a seacond block with the same dimension but 3 times the density of the first is placed in the water 2 m^3 of the block is found above the surface. Find the mass of the first and second block (m
The boat moves 25cm relative to the water as a result of you changing position in the boat. Determine the mass of your friend, if your mass is 80 kg and the mass of the boat is 30 kg. Assume that yo
Were you exceeding the 40 mph (17.87 m/s) speed limit before you applied the brakes? Was the SUV speeding before the collision?
Find the electric and potential field between the plates. Here the motion of the proton beam can be ignored.
Two beams of coherent light travel different paths, arriving at point P. If the maximum destructive interference is to occur at point P, what should be the path difference between the two waves?
A circuit containing a 9.2 H inductor has an alternating current supplied to it. If Irms is 3.9 A and Vp is 48 V, find the frequency of the signal. Express the answer with two decimal places.
A simple harmonic oscillator of amplitude 6.4mm and frequency 80 Hz is attached to the left end of a spring of linear mass density 8g/m held at tension 110N. How much energy is delivered by the osc
A snowman is made of three spheres of radii R,2R,3R with the largest sphere on the bottom and the smallest sphere on top. Find the center of mass of the snowman.
A 1400kg wrecking ball hangs from a 20m -long cable. The ball is pulled back until the cable makes an angle of 23.0 with the vertical. By how much has the gravitational potential energy of the ball
A flat coil of wire has an inductance of 40.0 mH and a resistance of 5.90 Ω. It is connected to a 26.3-V battery at the instant t = 0. Consider the moment when the current is 2.90 A. (a) At what
How much power does each dog supply to pull the sled/driver system at a constant speed of 9.00 m/s where the coefficient of friction between the sled and the snow is 0.120? (The acceleration due to
If a force gauge placed halfway down the rope reads out a constant 1.610 × 103 Newtons while Magnus pulls the bus a distance of 0.711 meters, how much work does the tension force do on Magnus?
Use the work-energy theorem to calculate the mass of the piece of fruit in grams. (The acceleration due to gravity is 9.81 m/s2.)
A uniform rod of mass M = 431.0 g and length L = 31.1 cm stands vertically on a horizontal table. It is released from rest to fall. a) Calculate the angular speed of the rod as it makes an angle 45&
LC circuit consists of a 20.0 mH inductor and a 0.350 µF capacitor. If the maximum instantaneous current is 0.150 A, what is the greatest potential difference across the capacitor?
After the passage of a strong storm, you observe your buoys to be traveling in circles, with an approximate diameter of 20 km. Recalling your Physical Oceanography, you suspect this to be an exampl
Your observing system, centered on the Equator in the Eastern Tropic Pacific, detects what you believe to be the passage of a Kelvin wave.