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Problem: A 1500- kg vehicle travels at a constant speed of 22 m/s around a circular track that has a radius of 85 m. Determine the magnitude of net force that acts on the vehicle.
LASIK eye surgery utilizes pulses of laser light to shave off tissue from the cornea, reshaping it. A typical LASIK laser emits a 1.4-mm-diameter laser beam with a wavelength of 193nm. Each laser pulse lasts 12ns and contains 1.0mJ of light energy
A softball of mass 0.220 kg that is moving with a speed of4.5 m/s (in the positive direction)collides head-on and elastically with another ball initially atrest. Calculate the mass of the target ball
An astronaut weighs 152 N on the surface of the moon. If the same astronaut orbits the moon at an altitude equal to the moons radius, what gravitational force does the moon exert on him at this altitude?
an electron is suspended at a distance of1.35cm above a uniform line of charge. what is the linear charge density of
The position of an object as a function of time is r? =(3.2t+ 0.90 t2)i^+(1.7t? 1.2 t2)j^m, Find the object's magnitude of the acceleration and What is the direction of the acceleration
What is speed of the resulting ball of clay
q1. a 28-rm cm-diameter vertical cylinder is sealed at the top by a frictionless 25 kg piston. the piston is 87 cm
A relaxed biceps muscle requires a force of 25.0 Newton for an elongation of 3.0 centimeter; the same muscle under maximum tension requires a force of 500 N for the same elongation. Determine the Young modulus for the relaxed muscle
Your friend's 1.41 gram graduation tassel hangs on a string from his rear-view mirror. Determine the tension in the string holding the tassel
A water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, is 3.20 cm away from a point charge q = +6.90 ?C, Calculate the magnitude of the net force
A 4kg duck sitting on a pole 20 m tall is struck by a 20 g bullet moving horizontally at 200 m/s. How far from the base of the pole does the duck strike the ground
A projectile is launched vertically with an initial speed of 3 kilometer per second from the surface of a planet (radius = 1.5 x 106 meter). Evaluate what is the mass of the planet
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