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What is the formula that describes how the acceleration of an object on an inclined plane depends on the angle the incline is elevated (with respect to the horizontal)?
An electron is suspended in a vacuum between two oppo- sitely charged horizontal parallel plates. What is the voltage across the plates
Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min. What is the speed of the water leaving the end of the hose
Two of the same capacitors C are wired in series. When they are connected to a +30V battery, How much energy each capacitor stores
A hospital patient receives a quick 500-cc blood transfusion through a needle with a length of 5.0 cm and an inner diameter of 1.0 mm. if the blood bag is suspended 0.85 m above the height where the blood first starts to flow into the vein, how lo..
A child in danger of drowning in a river is carried downstream by a current that flows uniformly with a velocity of 2.0 meters per second.
Two 3.5 kg bodies, A and B, collide. The velocities before the collision are A = (21 + 30) m/s and B = (-34 + 11) m/s. After the collision, ′A = (-4.5 + 16) m/s.
An astronaut is rotated in a horizontal centrifuge at a radius of 7.5 m. (a) What is the astronaut's speed if the centripetal acceleration has a magnitude of 5.4g? (b) How many revolutions per minute are required to produce this acceleration.
The electric potential at a position located a distance of 18.3 mm from a positive point charge of 8.50×10-9C and 13.3 mm from a second point charge is 1.10 kV
Passengers in an auto traveling at 16.5 m/s toward the east hear a siren frequency of 863 Hz from an emergency vehicle approaching them from behind at a speed of 40.1 m/s
A man of mass 65 kg falls stiff-legged straight down from a height of 2m. He lands on one foot. The femur is a bone in the leg with the length L=.65m, and a cross-sectional area of about 2.0 x 10^-4m^2. The Young's modulus for bone is 9.4x 10^9 N/..
A spring stretches by 0.0157 m when a 3.22-kg object is suspended from its end. How much mass should be attached to this spring
A playground merry-go-round has radius 2.40 m and a moment ofinertia of 2100 kgm^2 about a vertical axle through its center, andturns with negligible friction. What is the avergae power supplied by the child
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