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At a certain location, the Earth's magnetic field has a magnitude of 5.5.*10^-5 T and points in a direction that is 76 degrees below the horizontal. Find the magnitude of the magnetic flux through the top of a desk at this location that measures 140cm by 72cm
A charge of 15.0 uC is plaed at the center of a cube. Each side of the cube has an area of 4.50 cm^2 calculate The total electric flux passing through the surface of the cube
What is the smallest thickness of a soap film (n=1.40) that would appear black if illuminated with 470nm light? Assume there is air on both sides of the soap film
An 18 g rifle bullet travelling 180m/s buries itself in a 3.6kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Verify the horizontal component of the pendulum's displacement.
Consider a hammer with a 1.2-kg head. Let it strike the head of a 12-g iron-alloy nail 16 times in a row, quickly. estimate the temperature rise (in degrees Celsius) of the iron nail
A high-speed lifting mechanism supports a 745-kg object with a steel cable that is 31.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
A potter's wheel of radius 0.26 m is turned on at t = 0 and accelerates uniformly. Find the angular acceleration and the total angular displacement of the wheel during this time
In a purely iductive AC circuit L=25.0mH and the rms voltage is 150V. Calculate the inductive reactance, max and rms current in the circuit
Starting from one oasis, a camel walks 25 km in a direction 30 degrees south of west and then walks 30 km toward the north to a second oasis
A policeman is chasing a speeding car with a seed of 160 km/hr. the speeding car is moving with a speed of 120 km/hr. what frequency will the driver of the speeding car hear
One of the weapons considered for the "Star Wars" antimissile system is a laser that could destroy ballistic missiles. When a high-power laser is used in the Earth's atmosphere, the electric field can ionize the air, turning it into a conducting p..
A capacitor consists of two parallel plates, each with an area of 14.0 cm^2, separated by a distance of 0.150 cm. How much energy is stored in the charged capacitor
A concave mirror (R = 56.0 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 38.0 cm from the mirror, and a small flashlight shines light through the slide and onto the mirror. The setup is similar to that ..
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