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A skydiver jumps out of a plane and reaches her terminal speed of120 mph after falling for 15 s. How fast will the skydiver be going28.4 s later at the moment she pulls the ripcord? (The parachute hasn't deployed yet)
What is horizontal distance from press box to second base
A beam of light is incident from air on the surface of a liquid. find the critical angle for the liquid when surrounded by air
An artificial satellite is in a circular orbit around a planet of radius r = 5.55 x 103 km at a distance d=520km from the planet's surface. What is the average density of the planet
When ultraviolent light with a wavelength of 262nm falls upon a clean metal surface, What is the photoelectic threshold wavelength for this metal
A hot-air balloon consists of a basket, one passenger, and some cargo. Let the total mass be M. Find the upward lift force in terms of the initial total weight Mg
A 4.1kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.3m/s2, find the force exerted by the rope on the bucket.
A ski tow operates on a slope of angle 14.8? of length 250m . The rope moves at a speed of 12.4km/h, Estimate the power required to operate the tow
q. two perpendicular long straight wires both of which lie in the plane of the paper. the current in each of the wires
Three particles of mass m = 2.4 kg are fastened to three rods of length d = 0.69 m and negligible mass. The rigid assembly rotates about point O at angular speed ? = 7.5 rad/s. About O, what are (a) the rotational inertia of the assembly, (b) the mag..
Nerve proagation in your body occurs when large electric fields in the cell membranes on neurons (1.0*10^7 N/C) cause ions to move through cell walls
A satellite has a mass of 5900 kgand is in a circular orbit 3.0105 m above the surface of a planet. What is the true weight of the satellite when it is at rest on theplanet's surface
A thin film of oil (n = 1.29) is located on smooth, wet pavement. What is the minimum thickness of the oil film
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