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Two capacitors, of 3.2 and 4.8?F capacitance, are connected in parallel across a 300 V potential difference. Calculate the total energy stored in the capacitors.
A speedboat moving at 30 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of negative 3.5 m/s^2 by reducing the throttle. How long does it take boat to reach the buoy.
Calculate the speed of a proton after it accelerates from rest through a potential difference of 160.
How high is the sun above the horizon to a fisherman. What is the coefficient of kinetic friction between tires and pavement.
A projectile is launched perpendicularly upward from a planet of mass M; and radius R; its initial speed is twice the escape speed. Derive an expression for its speed as a function of the distance from the center of the planet.
A coin placed on a turntable rotating at 40.0 rev/min will stay there if its center is placed no further than 8.5 cm from the axis of rotation, What is the coefficient of friction between the coin and turntable
A pendulum consists of a .155 kilograms ball hanging from a light thread, find the angle the pendulum string makes with the Vertical when the system is in equilibrium
Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH and a lot of them are plant-derived compounds
What friction torque is necessary to reduce its angular speed from 90.0 {rm rpm} to 45.0 {rm rpm} in a time interval of 32.0 {rm s}.
Find the frictional torque, which is assumed to be constant. Find the moment of inertia of the wheel.
Follow that with some of her work on repressed memories. After completing your readings on the WebLink, the textbook, and the PowerPoint presentation, address the prompts for your assignment.
Two insulated wires, each 2.50 m long, are taped together to form a two-wire unit that is 2.50 m long. One wire carries a current of 7A; the other carries a smaller current I in the opposite direction. The two wire unit is placed at an angle of 78..
Once a traffic light turns green, a car speeds up from rest to 50 mi/h with constant acceleration 9 mi/h • s. In the adjoining bike lane, a cyclist speeds up from rest to 20mi/h with constant acceleration 13mi/h.
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