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After landing on an unfamiliar planet, a space explorer constructsa simple pendulum of length 50.0 cm. The explorer finds that the pendulumcompletes 107 full swing cycles in a time of 144 s.
What is the value of the acceleration of gravity on this planet?
A 200-m-wide river flows due east at a uniform speed of 4.5m/s. A boat with a speed of 9.0m/s relative to the water leaves the south bank pointed in a direction 28o west of north. How long does it take for the boat to cross the river
a highway is to be built between two towns one of which lies 87.0 km south and 50.0 km west of the other. a what is the
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.65 105 Pa, Find the volume flow rate through the pipe
Two converging lenses are separated by 27.00 cm. The focallength of each lens is 17.00 cm. An object is placed 32.00 cm tothe left of the lens that is on the left. Determine the final imagedistance relative to the lens on the right.
In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton?
what is the entropy change during the free expansion of 1.70 moles of an ideal gas from an intial volume of 1.60 liters into an evacuated volume of 1.90 additional liters
A 0.25 m segment of wire lies along the x-axis and carries a current of 4.7 A in the negative x direction. What is the force (magnitude and direction) on the segment of wire
a 70 ohms resistor a .1100 h inductor and a 14.0 microfarad capacitor are connected in series to a 60.0 hz source. the
a how far is alpha from their mutual center of mass when alpha and beta are 100km apart?b what is the velocity of their
A worker pushes horizontally on a large crate with a force of 304 N and the crate is moved 4.4 m. How much work was done.
a block of 2.7 kg slides was moving with a speed of 1.0 ms on a frictionless horizontal surface until it encounters a
A stone with a mass of 0.600kg is attached to one end of a string 0.800m long, Find the maximum speed the stone can attain without breaking the string
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