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The International Space Station ISS (the mass is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth. Assuming a circular orbit, what is the attractive force that the earth exerts to keep it in orbit? Give your answer in the form "a.bc x 10^(y)" N. What is the magnitude of the earth's gravitational field at the location of the ISS? Give your answer in the form "a.bc x 10^(y)" N/kg.
A 29.5 kg block is connected to an empty 1kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.50 and the coefficient of kinetic friction between the table and the block is..
Billy Dee notes that her favorite record rotates at 34 rev/min. At what speed does the point on the record touching the stylus (needle) move when the stylus (needle) is 5.9 cm from the center?
It has been suggested that rotating cylinders about 12 mi long and 5.1 mi in diameter be placed in space and used as colonies. What angular speed should such a cylinder have so that the centripetal acceleration at its surface equals free-fall acce..
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
You are to build a box whose height is 0.280 times its length. In order for the box to have a given volume while using a minimum amount of cardboard, what should be the ratio of the width of the box to its length.
An air traffic controller has two aircraft on radar. The first is at an altitude of 0.5 km, a horizontal distance of 3 km measured along the ground to the point directly underneath the plane, and a bearing of 115° west of north.
A steel band exerts a horizontal force of 76N on a tooth at point B. What is the torque on the root of the tooth about point A.
What is an angular speed of the small cylinders, which is between two inner and outer cylinders
Compute average magnetic flux through turn of inner solenoid
A very long, straight wire has charge per unit length (lambda) . At what distance from the wire is the electric field magnitude equal to E ? How do you solve this problem?
How to find out the magnitude of the acceleration
A small immersion heater is rated at 329 W. Compute approximately how long it would take to heat a cup of soup (suppose this is 250 mL of water) from 20°C to 50°C.
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