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In the x-y plane, a charge of -4.6 microcoulombs is on the x-axis at the point (-30cm,0cm), and a second charge of +7.2 microcoulombs is located on the y-axis at point (0cm,40cm).
A) calculate the magnitude and direction of the resultant electric field E at the origin (0cm,0cm)
B) calculate the magnitude and direction of the Electric Force F (using F=qE) acting on an ion of charge -3e if this particle were placed at the origin.
A 0.22-kg coffee mug is made from a material that has a specific heat capacity of 900 J/(kg · C°) and contains 0.23 kg of water. determine the minimum power rating of this heater
A uniform ladder of mass m and length l leans at an angle θ against a frictionless wall, determine a formula for the minimum angle at which the ladder will not slip
Iterates until convergence is reached (the previous guess for the velocities is not significantly different from the current guess and calculates the friction factor for the current guess of velocities.
A car in a roller coaster moves along a track that consists of a sequence of ups and downs, Derive a general expression for the speed v of the car
You're doing a double-slit experiment with two different colors. What's the wavelength of that color
A jet flying at 107 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, Calculate the magnitude of the necessary lifting force
A 200 g calorimeter contain 500 g of water at 21 degree Celsius. A 100g of ice at -20 degree Celsius is placed into the calorimeter. find the specific heat of the material of the calorimeter
Wool is rubbed against a plastic ruler. If the plastic ruler acquires a charge of -5 µC, how many electrons have been transferred to the ruler
In addition, snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
The amount of internal enrgy needed to raise temperature of .25kg of water by .2 degreesCis 209.3J. How fast must a .25kg baseball travel in order for its kinetic energy to equal this internal energy.
What is the minimum work needed to push a 800 -kg car 860m up along a 9.0 degree incline
A solid ball of radius r=1cm rolls down at an incline of theta =30 deg which is 1 meter high. what is the speed the bottom of the incline
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