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A physics student comes up with the following scheme to gauge the building height a timing mechanism is set up to gauge the time it takes for a lead weight dropped from the top of the building to fall the last 15m before hitting the ground. Observations for a certain building show that the weight takes 09 seconds to fall this last 1.5 m how high is the building?
A plastic bag is filled with hydrogen at atmospheric pressure and 20.0 oC. Assume that the mass of the bag is negligible, How large a volume of hydrogen (in m3) is required
For the system shown , the block has a mass of 1.5 kg and the spring constant k=8.0 N/m. find the number of oscillations made by the block during the time interval required for the amplitude to fall to one-third of its initial value
question1two cars drive on a straight highway. at time t0 car 1 pass mile marker 0 travelling due east with a speed of
A charge of 3.45 µC is uniformly distributed on a ring of radius 9.5 cm. Find the electric field strength on the axis at the following locations. (a) 1.2 cm from the center of the ring N/C (b) 3.1 cm from the center of the ring N/C (c) 4.0 m from ..
A satellite is in a circular orbit around an unknownplanet. The satellite has a speed of 1.60 x 104m/s, and the radius of the orbit is 5.45 x 106 m. What is the orbital speed of the second satellite
A bolt on an engine is to be tightened with a maximum torque of 75 Nm. If a wrench has a length of 0.30 m, what is the maximum force perpendicular to the length
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 330 Newton for 7.6 second,Calculate what is the work done by friction
A 169× astronomical telescope is adjusted for a relaxed eye when the two lenses are 1.33 m apart. What is the focal length of each lens
A space traveler weighs 535 N on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
a an electron is moving east in a uniform electric field of 1.55nc directed to the west. at point a the velocity of the
A string with a mass m = 6.00 g and a length L = 8.00 m has one end attached to a wall; the other end is draped over a small, what is the fundamental frequency of its vibration
A jet airplane in level flight has a mass of 8.66 × 104kg and the two wings have an estimated total area of 90.0m2. (a) What is the pressure difference among the lower and upper surfaces of the wings?
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