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A uniform plate of height 1.020 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y=0.850x2. Find the distance from the rounded tip of the plate to the center of mass.
An RL circuit consists of a switch, an emf source Eo, a 4 kΩ resistor, and a 5 H inductor. If the potential across resistor is 16 V 5 ms after switch is closed, find out the source emf, Eo.
An inductor of 491 mH with a resistance of 47 ? is connected to a power supply with a maximum voltage of 135 V and a frequency of 77 Hz. Find the power loss in the inductor
A 2 kg gun imparts a speed of 500 m/s to a 25 g bullet. what average force is exerted on the shooter's shoulder
A 1.3-kg block of ice is initially at a temperature of -6.0%u2218C. If 3.0*10^5 J of heat are added, what is the final temperature
two workers push horizontally in the same direction on a 250 kg wooden crate that is on a wooden floor. What total force must they exert to start the crate moving
A proton is confined within an atomic nucleus of diameter 4.1 fm. Estimate the smallest range of speeds
A student holds a tuning fork oscillating at 201 hz. He walks towards a wall at a constant speed of 1.38 m/s. What beat frequency does he observe between the tuning fork and its echo
A loudspeaker diaphragm is oscillating in simple harmonic motion with a frequency of 330 Hz, What is the magnitude of the maximum acceleration
How various meters away is a cliff if an echo is heard 0.475 s after the original sound? Assume that sound traveled at 343 m/s on that day.
Old naval ships fired 13 kg cannon balls from a 210 kg cannon. It was very important to stop the recoil of the cannon, since otherwise the heavy cannon would go careening across the deck of the ship.
A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is u1=1.265, Determine the maximum angle with the vertical the ladder can make
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 3.6 J of work is required to compress the spring by 0.1 m. Find the value of the mass
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