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An electron is trapped somewhere in a molecule which is 5.8nmlong. Calculate the minimum kinetic energy of the electron.
Two parallel metal rods form a plane inclined at 20.0° to the horizontal. The upper end of the rods are connected together by a resistor of 122.0 ?. What is the maximum speed of the bar
David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.
A block in the shape of a rectangular solid has a cross-sectional area of 4.48 cm2 across its width, a front-to-rear length of 22.1 cm, find the magnitude of the electric field in the block
A car alarm is emitting sound waves of frequency 520Hz. How fast must you be traveling if you detect a frequency of 490 Hz?Enter your speed as a positive number. Take the speed of sound to be 344
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1) .) When the skater's hands and arms are brought in and wrapped arou..
A 70 kg mountain climber dangling in a crevasse stretches a 50-m-long, 1.0-cm-diameter rope by 8.0 cm. What is Young's modulus for the rope
A rocket has an initial mass of 28,000 kg, of which 20 percent is the payload. It burns fuel at a rate of 185 kg/s and exhausts its gas at a relative speed of 1.8 km/s.
The following charges are located inside a submarine: 15 micro Coulomb, -9 micro Coulomb, 25 micro Coulomb, and -31 micro Coulomb. obtain the net electric flux through the hull of the submarine
Two converging lenses having focal lengths of 12.0 cm and 22.0 cm are placed 50 cm apart, as shown in the figure below. The final image is to be located between the lenses, at the position indicated.
A long, current-carrying solenoid with an air core has 1780 turns per meter of length and a radius of 0.0130 m. What is the mutual inductance of this system
The capacitance of an empty capacitor is 1.2µF. The capacitor is connected to a 12-V battery and charged up. What is the dielectric constant for the material
The motion detector used in a physics lab sends and receives 22.52 kHz ultrasonic pulses. What is the wavelength of the waves emitted by the motion detector
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