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Q. A small, plastic sphere of mass m = 107 g is attached to a.
There is an electric field of 113N/C directed along the + x axis. If the string makes an angle 26 degrees with the y axis when the sphere is in stability, what is the charge on the sphere?
Q. When the temperature of a metal cylinder is raised from 0.0°C to 77 °C, its length increases by 0.19 percent? Find the percent change in density.
What is angular velocity of the cockroach-disk system
On a cool morning, when the temperature is 11 ^circC, you measure the pressure in your car tires to be 30.0 psi. After driving 20 mi on the freeway, the temperature of your tires is 53 ^circC.
find the angular speed after the grindstone. what must be its minimum mass so that material on its surface remains in place during the rapid rotation.
A 25- sample of an ideal gas with is at 250 and 50. The gas is compressed isothermally to one-third of its original volume, then heated at constant volume until its state lies on the adiabatic curve that passes through its original state, and then al..
What is a density of the block
A light string that does not stretch changes from horizontal to vertical as it passes over the edge of a table. The string connects m1, a 3.4 kg block, originally at rest on the horizontal table at a height 1.27m above the floor, to m2, a hanging ..
When light with a wavelength of 206 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 2.57 x 10-19 J. find the wavelength (in nm) of light that should be used to double the maximum kinetic energy of ..
Relationships between wavelength, frequency and speed.
A ball has fallen to the street below, and a passerby returns it by launching it at an angle of 53.0° above the horizontal at a point 26.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall.
calculate the force of kinetic energy acting on Tom. calculate the distance from the edge of the table where Tom hits the floor.
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad.
A plot of pressure as a function of volume is known as a pV diagram. pV diagrams are often used in analyzing thermodynamic processes. Consider an ideal gas that starts in state O, as indicated in the diagram. Your task is to explain how the gas proce..
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