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The spring constant of a spring is 1260 N/m. A body is suspended from the spring, causing it to stretch 7.0 cm. What is the mass of the body?
Sam (68.3 kg) and Alice (41.5 kg) stand on an ice rink, providing them with a nearly frictionless surface to slide on. Sam gives Alice a push, Calculate the change in the kinetic energy of the Sam-Alice system
Estimate the electric field at a point 2.40 cm perpendicular to the midpoint of a uniformly charged 2 m-long thin wire carrying a total charge of 4.10 microC.
Chicago is located at 37.5 degrees north of the equator. What is chicagos linear velocity due to the Earth spinning on its axis
Five equal negative point charges -q are placed symmetrically around a circle of radius R as shown. Use a rough approximation to express the magnitude of electric field E at a point on the positive x axis a distance R from the center of the circle..
A sample of an unknown material appears to weigh 285 N in air and 180 N when immersed in alcohol of specific gravity 0.700. What is the density of the material
A bizarre baton is created by taking four identical balls, each with mass 0.252 kg, and fixing them as before except that one of the rods has a length of 1.06 m, Calculate the moment of inertia of this baton
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
Two 2.3-cm-diameter electrodes with a 0.10-mm-thick sheet of Teflon between them are attached to a 9.0 battery. What is the charge before the Teflon is removed
A loop of diameter 15 cm is placed in a uniform electric field of magnitude 6.0 102 N/C. (a) What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop? N·m2/C.
Jone pulls her brother on a sled over a horizontal surface with force of 80N. The force is at an angle of 25 degree, determine the acceleration of the sled
A steel aircraft carrier is 364m long when moving through the icy North Atlantic at a temperature of 2.4°C. By how much does the carrier lengthen as it is traveling in the warm Mediterranean Sea at a temperature of 21° C.
Air that initially occupies 0.144 m3 at a gauge pressure of +70 kPa is expanded isothermally to atmospheric pressure, Compute the work done by the air
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