Three uniform spheres are located at the comers of an equilateral triangle. Each side of the triangle has a length of 1. 20 m. Two of the spheres have a mass of 2. 80 kg each. The third sphere (mass unknown) is released from rest. Considering only the gravitational forces that the spheres exert on each other, what is the magnitude of the initial acceleration of the third sphere?.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

If you are charged in a crash with injuries and are driving a motorcycle, you are for any bodily injuries and property damage to others. possibly responsible not responsible probably responsible financially responsible

"what factors influence the absorption of sunlight at earth's surface? "