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In an essay of at least 500 words discuss the following:
Which do you believe is better, the traditional way of dying at home or the modern way of dying in a medical institution? Explain your answer.
An iron tower in is 340 meters tall on a cold day (=-8l4 degrees Celsius). What is the hight of the tower on a hot day whe the tempeture is 32.4 degrees Celsius
A rotating fan completes 1190 revolutions every minute. Consider the tip of a blade, at a radius of 17.0 cm. (a) During what distance does the tip move in one revolution? What are (b) the tip's speed and (c) the magnitude of its acceleration? (d) Wha..
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 2.17 m away. What is the distance between the two second-order maxima
A swing is made from a rope that will tolerate a maximum tension of7.0 102 N without breaking. What is the mass of the heaviest person who can ride the swing
A 50 kg person stands at the edge of a 7.4 m diameter circular platform, which is mounted horizontally on frictionless bearings and has a total mass of 300 kg. What is the magnitude of the speed of the person (in m/s) with respect to the ground
A kangaroo can jump over an object 2.20 m high. What is the total time that it spends in the air
What is the average pressure on the soles of the feet of a standing 80.7-kg person due to the contact force by the floor? Each foot has a surface area of 0.021 m2.
A steel cable with a total length of 27.7 m and total mass of 91 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
The biochemistry that takes place inside cells depends on various elements, such as sodium, potassium, and calcium, that are dissolved in water as ions. What is the resistance of the ion channel
The International Space Station orbits at an average height of 350 km above sea level. Determine the acceleration due to gravity at that height, and find the orbital velocity and period of the space station? The Hubble Space Telescope orbits at 60..
A skater is initially spinning at a rate of 13.1 rad/s with a rotational inertia of 2.54 kg·m2 when her arms are extended. What is her angular velocity after she pulls her arms in and reduces her rotational inertia to 1.64 kg·m2?
An object that has a mass M hangs from a support by a massless string of length L (see figure below). The support is rotated so that the object follows a circular path at an angle θ from the vertical as shown. The object makes N revolutions per se..
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