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An electron with unknown kinetic energy is brought to rest as it falls during a potential 120 V. What was its initial kinetic energy? (In joules)
The diameter of the aluminum cylinder is measured to be: (4.935 ±0.003)cm. The hanging mass (paint bucket and 5kg) for a Mechanical Equivalent of Heat experiment is recorded as (5.2977 ±0.0002)kg. Calculate the work done cranking the aluminum cylin..
Consider two transformers. Transformer A has 300 turns on its primary and 500 turns on its secondary. What is the amplitude of the secondary voltage on transformer B
A bicycle wheel with a radius of 38 cm is given an angular acceleration of 2.80 rad/s2 by applying a force of 0.25 N on the edge of the wheel. What is the wheel's moment of inertia?
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. Find the force acting on the board by the tailgate
The photoelectric effect experiment is often carried out by using a mercury light source to illuminate a particular surface. What is the work function of this surface
A 0.35 kg cart traveling at 0.6 m/s to the right collides with a stationary 0.55 kg cart. After the collision the second cart (.55kg) is traveling to the right at 0.32 m/s, What is the speed and direction of the first(.35kg) cart
A microscope has a 16.8 cm tube length, a 0.64 cm focal length of the objective lens, calculate the microscope's magnification
The balloon contains 0.30mol of helium starts at a pressure of 110 kPa and rises to an altitude where the pressure is 70.0 kPa, How much work does the gas in the balloon do
A device used in radiation therapy for cancer contains 0.38 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
Calculate the volume charge density of the atmosphere
A 2.16 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0320 m. The spring has force constant 840 N/m.
airplane flight recorders must be able to survive catastrophic crashes. therefore they are typically encased in
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