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A bead with mass 1.8 x 10-2 kg is moving along a wire in the positive direction of an x axis. Beginning at time t = 0, when the bead passes through x = 0 with speed 12 m/s, a constant force acts on the bead. Figure indicates the bead's position at times t0 = 0, t1 = 1.0 s, t2 = 2.0 s, and t3 = 3.0 s. The bead momentarily stops at t = 3.0 s. What is the kinetic energy of the bead at t = 10s?
discuss the function of a washing machinedryer in terms of circular motions centripetal force and pseudo centrifugal
An engine does 18600 J of work and rejects 6860 J of heat into a cold reservoir whose temperature is 281 K. The smallest possible temperature of the hot reservoir is
suppose the original experiment is done on the Moon, where g, the acceleration due to gravity, is about one-sixth of g on Earth. If the magnet is dropped from height H, how will the graph compare to the original graph
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar
Two cars collide at an intersection. Car , with a mass of 1900 kg , is going from west to east, while car B , of mass 1300 kg , is going from north to south at 16.0 m/s. How fast were the enmeshed cars moving just after the collision
An electron in a magnetic field has a cyclon frequency of 7.0 x 10^12 Hz. What is the magnetic field strength? the mass of an electron is 9.1 x 10^-31 kg, and the charge of an electron is 1.6 x 10^-19 C.
Two springs of constants 2.0 x 103 N/m and 3.0 x 103 N/m are connected in tandem, and mass of 5.5kg hangs vertically from this spring. By what amount does the mass stretch the combined spring
Ceres, the smallest identified dwarf planet in the Solar System, has a radius R = 480 km and an acceleration due to gravity on its surface of magnitude g = 0.27 m/s2. Use these numbers to calculate the escape speed from the surface of Ceres.
A tennis ball of mass m = 0.070 kg and speed v = 25 m/s strikes a wall at a 45° angle and rebounds with the same speed at 45°
What force does a 55 kg passenger exert on the seat when she is at the top of the Ferris wheel.
The loaded cab of an elevator has a mass of 3.7 x 10^3 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab.
An 800-kHz radio signal is detected at a point 4.5 km distant from a transmitter tower. What is the magnetic field amplitude of the signal at that point
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