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A 4kg mass is on the end of a 80 cm long cord. The mass is pulled to an angle of 35 degrees from the vertical and then released. What is the speed of the mass as it reaches the bottom of its swing?
A typical ten-pound car wheel has a moment of inertia of about. calculate the rotational kinetic energy K of the rotating wheel
Let's say you have a prescription for contacts of -2 diopters. Estimate how far you will be able to focus
A basketball leaves a player's hands at a height of 2.20m above the floor. what is the range of initial speeds allowed to make the basket
A wheel of radius 1.5m rotates at a constant angular velocity. A point at the edge of the wheel experiences centripetal acceleration of 1.2m/s^2. What is the linear speed of that point
Oxygen has a molar mass of 32.0g/mol. What is the root-mean-square speed of an oxygen molecule at a temperature of 298K
Two 2.7cm -diameter disks face each other, 2.7mm apart. They are charged to ±14nC. What is the electric field strength between the disks
A capacitor consisting of two plates separated by a distance d of 4.25 x 10^-3, with an area A of 8.15 x 10^-4 m^2, What is the numerical value of the energy for the capacitor
An ALkaline earth atom has 2 valance electrons. Both can be spin up and spin down. Write the singlet states
calculate the ratio of the drag force on a jet flying at 1140 kmh at an altitude of 10 km to the drag force on a
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the average pressure on the other walls
A 41.4-cm diameter disk rotates with a constant angular acceleration of 2.30 rad/s2. Find the angular speed of the wheel
A 3.34 bullet moving at 280 enters and stops in an initially stationary 3.40 wooden block on a horizontal frictionless surface. How much work was done in stopping the bullet
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