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A hotel elevator ascends 200 meter with maximum speed of 5 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2. Evaluate how long does it take to make the complete trip from the bottom to the top.
Three filaments with ratings P1 = 60 W, P2 = 80 W, and P3 = 180 W are connected parallel to a 120 V outlet. How much total current is drawn
A football is kicked at an angle ? = 37.0° with a velocity of 20.0 m/s. Calculate a) the maximum height, b) the time of travel before it hits the ground, c) how far away it hits the ground, d) the velocity vector at the maximum height, and e) the ..
A sprinter of mass 71.4 kg runs at a constant speed of 11.1 m/s in a straight line. Find the extra force the sprinter must exert on the ground to round a curve of radius 10.3 m
a simple harmonic oscillator of amplitude a has a total energy e. a determine the kinetic energy when the position is
A straight ladder is leaning against the wall of a house. The ladder has rails 3.20 m long, joined by rungs 0.530 m long. What should be the thickness of the rock
When the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic process, the liquid's temperature must also be reduced to reach a new equilibrium state.
show an example of the use of steam tables and mollier charts. use the following information to show how the answer can
A loop of wire has the shape shown in the drawing. The top partof the wire is bent into a semicircle of radius r = 0.25m. The normal to the plane of the loop is parallel to a constantmagnetic field of magnitude 0.94 T.
Two uniform spheres of mass 75 kg are fixed at 14 cm( along the y-axis) and 20 cm (along the x-axis). What is the initial acceleration of a uniform sphere of mass 5 kg if released from rest at the origin?
Two stationary positive point charges, charge 1 of magnitude3.40 nC and charge 2 of magnitude 2.00 nC, are separated with a distance of 45.0 cm. An electron is released from rest at the point midway among the two charges, and it moves along the line ..
Susan (mass=52 kg) rides upward in an elevator while standing on a bathroom scale. The scale reads 575 N. Calculate the resultant force acting on Susan
A high jumper leaps into the air with an initial speed of 5.8 m/s. Find how high will she be at the top of her flight when v=0
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