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A projectile is projected from the origin with a velocity of 30.0 m/s at an angle of 45 degrees above the horizontal. What is the range of the projectile?
An infinite non conducting sheet has a surface charge density σ = +5.80 pC/m2. (a) How much work is completed by electric field because of the sheet if a particle of charge q = +1.60 × 10-19 C is moved from the sheet to a point P at distance d = 3.56..
In a control system, an accelerometer consists of a 4.99-g object sliding on a calibrated horizontal rail, Find the force constant of the spring required for the calibration to be correct
A metallic wire has a diameter of 4.12 mm. When the current in the wire is 8.00 A, the drift velocity is 5.40 x 10^-5 m/s. What is the density of free electrons in the metal
A 6.0-cm-diameter circle lies in the xz-plane in a region where the electric field is E =(1200i^+1200j^+1200k^)N/C
A helium-filled weather balloon has a 0.90 m radius at liftoff where air pressure is 1.0 atm, What is the pressure at the airborne location
A string 1.50 m long will break if the tension in it exceeds 2X10^2N. How fast (in m/s) can a rock of mass 1.50 kg be whirled in a circular horizontal path if the string is not to break? Assume the rock moves on a smooth horizontal surface (No fri..
A man stands on a platform that is rotating (without friction) with an angular speed of 1.8 rev/s; what is the resulting angular speed of the platform
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
A potter's wheel is rotating at 3.2 rad/s in a counterclockwise direction when the potter turns it off and lets it slow to a stop. This takes 26 seconds. What is the average angular acceleration of the wheel during this time?
express what would be the frequency of vibrations.
A 53.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.30m. what is the diameter of the football players' piston
It is possible to calculate the maximum possible potential (relative to infinity) in air of a metal sphere of 19 cm radius. First, what is the most charge you can put on this sphere.
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