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An electron is accelerated from rest by a potential difference of 38.5 V for a distance of 8.5 cm. Determine the de Broglie wavelength of the electron. Give your answer in picometers (pm) and with 3 significant figures
A 5.00-kg partridge is suspended from a pear tree by an ideal spring of negligible mass. How much does the spring shorten
Suppose an object is placed at the edge of a recordplayer. The record player has a diameter 30.0cm and rotatesat 33.3 RPM (revolutions per minute). how fast is the outside edge of the record moving
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire. When the wind blows hard, What is the mass of the sculpture
The gauge pressure in your car tires is 2.40 x 105 N/m2 at a temperature of 35.0°C when you drive it onto a ferry boat to Alaska. What is their gauge pressure later
Two capacitors give an equivalent capacitance of 10.00 pF when connected in parallel and an equivalent capacitance of 1.75 pF when connected in series. What is the capacitance of each capacitor
Using the free - electron theory of metals , compute (a) the ground state energy level in a block 1 cm × 1 cm × 1 cm in joules . Too, for an energy level with a sum - of - squares nx^2 + ny^2 + nz^2 = 27, what are the possible values of nx , ny , and..
A sinusoidal voltage ?v = (100 V) sin (200t) is applied to a series RLC circuit with L = 40 mH, C = 120 ?F, and R = 32 ?. What is the maximum current in the circuit
When a diver jumps into the ocean, water leaks into the gap region between the diver's skin and her wetsuit, estimate how much energy (in units of candy bars = 300 kcal) is required by this heating process
A 1.08 kg mass is at the center of a uniform spherical shell of mass 1.05 1020 kg and radius 1.11 106 m. Find the resultant gravitational force on the mass
Thinking about the winter we missed out on this year. Calvin and his tiger go sledding down a snowy hill. There is friction between the snow and the sled
Set up the equations of motion of the double pendulum in terms of angles ?1 and ?2 measured from the vertical.
A microscope has an objective lens of focal length 5.40 mm. The objective forms an image 15.9 cm from the lens. The focal length of the eyepiece is 2.80 cm. What is the distance between the lenses
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