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A charge of 23.0 μC is located at (4.40 m, 6.22 m), and a charge of -15.0 μC is located at ( - 4.50m, 6.75m). What charge must be located at (2.23m, - 3.31m) if the electric potential is to be zero at the origin?
Find the resistance in ohms of an aluminum wire that is 15 m long and has diameter 0.0025 m. What is the new resistance of the wire
A rectangular fish tank measures 20 cm by 60 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the pressure at the bottom due to the water
(a) Calculate the R-value of a thermal window made of two single panes of glass each 0.100 in. thick and separated by a 0.200-in. air space. By what factor is the transfer of energy by heat through the window reduced by using the thermal window inst..
A 38.0 kg wheel, essentially a thin hoop with radius 2.40 m, is rotating at 460 rev/min. It must be brought to a stop in 23.0 s. (a) How much work must be done to stop it? (b) What is the required average power? Give absolute values for both parts.
a certain second-order reaction has a rate constant of 1.10times10-3 at 27 and an initial half-life of 226. what is
A motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 m/s2, How much time elapsed from the initial braking to the collision
A car with mass 2000.0kg is moving from rest with acceleration 0.50m/s^2. What is its speed after 4.0s of motion? What is its kinetic energy at that instant of time
An aquarium contains a 5 - cm layer of water ( n = 1.333) floating on top of carbon tetrachloride ( n = 1.461) what is the angle of refraction into the air
The work completed by friction on the rock when it moves from point to point at the bottom of the bowl has magnitude 0.22. Just as the rock reaches point, what is the normal force on it because of the bottom of the bowl .
A particle leaves the origin with an initial velocity v = (1.00 ) m/s and a constant acceleration a = (-1.00 - 0.700 ) m/s^2. What is the position vector of the particle at this time
Particles pass through a single slit of width 2.3 mm, use the Heisenberg uncertainty principle to determine the minimum range of angles
A 0.15 kg ball is placed in a shallow wedge with an opening angle of 150.For each contact point between the wedge and ball, find out the force exerted on the ball. Assume the system is frictionless.
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