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A 1.10 kg mass is attached to a light cord that is wrapped around a pulley of radius 7.30 cm, which turns with negligible friction. Themass falls at a constant acceleration of 2.35 m/s2. Find the moment of inertia ofthe pulley.
The skateboarder in the drawing starts down the left side of theramp with an initial speed of 6.47 m/s. If non-conservative forces,such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached..
an infinitely long line of charge has a linear charge density of 3.50times10-12 cm . a proton is at distance 13.0 cm
during a 78-ms interval a change in the current in a primary coil occurs. this change leads to the appearance of a
A stone is thrown into the air with an initial velocity of 50 m/s at 37degress to the horizontal, find the total horizontal distance it travels
A solid steel ball and a tennis ball the same size are dropped at the same time. Find which ball has the greater force acting on it
An electron accelerated from rest through a voltage of 550 V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 18 cm, what is the magnitude of the magnetic field?
The speed of a bobsled is increasing because it has an acceleration of . At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 500 N.
Two converging lenses, each of focal length 13.1 cm, are placed 58.6 cm apart, and an object is placed 29.9 cm in front of the first. What is the magnification of the system
dolphins communicate using sound waves underwater. suppose a dolphin emits a sound wave with frequency 660 hz while
A machine gun fires 23 g bullets horizontally at 260 m/s at a constant rate of 30 bullets/s. what is the average force exerted on the door
A series RLC circuit has components with R= 50 ohms, L= .15 Hz, and C= 20 uF. A) What is the current in the circuit, expressed as a percentage of the maximum possible current? B) What is the power delivered to the circuit, expressed as a percentage o..
a 4kg watermelon is balanced on bruces shaved. r. lee ermey who hates watermelons with every fiber of his being shoots
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