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A 18.3-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 65.1-N horizontal force. Find the tension in the rope and the rope\'s angle from the vertical. The acceleration due to gravity is 9.81 m/s2.
As a civil engineering intern during one of your summers in college, you are asked to design a curved section of roadway that meets the following conditions: at what angle should the road be banked
A 52% efficient device uses chemical energy to generate 570J J of electric energy. How much chemical energy is used
A crate is dragged 3m across a rough floor at a constant speed by a worker applying 500N at an angle of 30 deg above the horizontal. How many forces act on the crate
n oil film (n = 1.40) of thickness 290 nm floating on water (n=1.33) is illuminated with white light at normal incidence
A stuntman drives a car over the top of a hill, the cross section of which can be approximated by a circle of radius 160 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the hill?
A series RLC circuit is driven by an alternating source at a frequency of 410 Hz and an emf amplitude of 90.0 V. What is the rms potential difference across the resistor
A 0.24-kg block rests on a table, and a 012-kg is placed on top of it. What is the highest angular frequency for which the upper block will not slip with respect to the lower block
You cool a 130.0g slug of red-hot iron (temperature 745 ?C) by dropping it into an insulated cup of negligible mass containing 70.0g of water at 20.0 ?C. What is the final mass of the iron and the remaining water
a 70 kg hockey player sliding freely on his knees on horizontal icy surface with velocity m/s. find the velocity of the player after he catches the puck
q1. a roller-coaster car speeds down a hill past point a where r1 10.0 m and then rolls up a hill past point b where
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
If 200 g of water is contained in a 300g aluminum calorimeter at 20°C and 20g of steam at 100°C is introduced into the calorimeter
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