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1. Calculate the force between two objects that have masses of 70 kg and 2,000 kilograms separated by a distance of 1 meter.2. Calculate the force between two touching grapefruits each with a radius of 0.08 meters and a mass of 0.45 kilograms.3. Calculate the force between one grapefruit as described above and EArth. EArth has a mass of 5.9742 x10^24 kg and a radius of 6.3710 x 10^6 meters. Assume the grapefruit is resting on Earth's surface.
Regarding the Earth and a cloud layer 800 m above the Earth as the "plates" of a capacitor, calculate the capacitance of the Earth-cloud layer system. What is the maximum charge the cloud can hold
An alien spacecraft flies from its home planet to earth, a distance of 4.33 light-years, according to the aliens on board. determine the distance between the alien planet and the earth
A net force of 32 N accelerates a 4.7-kg mass over a distance of 15 m. What is the total work done by this net force
assume you are standing on a train, both feet together, facing a window. The front of the train is to your left. The train starts moving forward.
Calculate the peak voltage of a generator that rotates its 210 turn, 0.100 m diameter coil at 3600 rpm in a 0.830 T field
A thin film of oil (n=1.26) is located on smooth, wet pavement. When viewed from a direction perpendicular to the pavement, evaluate the minimum thickness of the oil film
A 2.8 kg rectangular air mattress is 2 m long, 0.5 m wide, and 0.1 m thick. What mass can it support in water before sinking.
A curve of radius 53.8 m is banked so that a car of mass 2.5 Mg traveling with uniform speed 56 km/hr can round the curve without relying on friction to keep it from slipping on the surface
An optometrist prescribes contact lenses that have a focal length of 56.0 cm. Where is the unaided near point of the person located
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A 96-kg man's thighbone has a relaxed length of 0.56 m, a cross-sectional area of 6.7 10-4 m2, By how much does the thighbone compress when the man is standing on both feet
An 8.0cm diameter, well-insulated vertical cylinder containing nitrogen gas is sealed at the top by a 5.8kg frictionless piston, What is the gas pressure inside the cylinder
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