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A cylinder weighs 2.3N in the air and has dimensions of d = 2.8 cm, and height= 14cm.
a. What is the density of the object?
b. If it is lowered into a fluid with a density of 1009 kg/m3 will it float or sink? Explains your answer.
c. If it sinks what is the tension in the string attached to the cylinder when it is completely in the fluid? If it floats, how much of the cylinder is above the fluid level?
An Indy car with a speed of 140 goes around a level, circular track with a radius of 1.50 What is the centripetal acceleration of the car
A glass rod that has been charged to + 17.0nC touches a metal sphere. Afterward, the rod's charge is + 9.0nC
there are two identical positively charged conducting spheres fixed in space. the spheres are 39.4 cm apart center to
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of ..
Electric Field Mapping? A) In an experiment you will have carbon paper with silver electrodes painted on them. The paper acts like an insulator and the electrodes act like conductors. What should the field be inside the conductors? What about the pot..
The position vector,r, in meters, of a particle moving in the x-y plane, is giving by the following equation: r=i(2t^2-8t-12)+j(2t^3-18t^2+48t+25), find the direction of the velocity vector at the instant
In a situation similar to one you may have seen before, there is a clinic with two physicians, Dr. X and Dr. Y, and each doctor can be scheduled to see at most 3 patients per hour. The joint probability mass function is given by the following table. ..
Monochromatic light falling on two slits 1.5×10?2mm apart produces the fifth-order fringe at an 8.9?angle.
The femur is a bone in the leg whose minimum cross-sectional area is about 4.5 x 10-4 m2. A compression force in excess of 7.7 x 104 N will fracture this bone. Bone has a compression Young's modulus of 9.4 x 10^9 N/m2
A 40.0 kg ballet dancer stands on her toes during aperformance with four square inches (26.0 cm^2) in contact with thefloor. What is the pressure exerted bt the floor over the area ofcontact in the following cases?
A 1,200 W hair dryer is operated on a 120 V circuit for 15 minutes. If electricity costs $0.10/kW h, what was the cost of using the blow dryer.
A resistance R carries a current I = (5 A) sin 120 ?t + (10 A) sin 240 ?t. What is the rms voltage across the resistor
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