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A group of students practice walking at a constant speed until they feel that they are able to reproduce that particular speed at will. To test this, they make ten trials where they use a motion detector to measure the distance that they walk in 3.83 seconds. They measure the following distances: 1.88, 1.93, 1.92, 1.85, 2.02, 1.96, 2.08, 1.88, 1.79, 2.04 m.
What is the best estimate of the uncertainty in any single one of the distance measurements?
A docking shuttle requires to decelerate at a very specific rate, given by a=bt2. If the shuttle is moving at 800m/s and begins at 30km away, how long will it take to dock?
Two waves are generated on a string of length 3.0 m to produce a three-loop standing wave with an amplitude of 4.6 cm, What are the lowest frequency
Water has a mass per mole of 18g/mol, and each water molecule (H2O) has 10 electrons.
An astronaut on earth can throw a ball straight up to a height of 13m. How high can he throw the ball on Mars
An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. What is the horizontal force acting on the puck
Illustrate what is the minimum centripetal acceleration the truck must have going around the circular curve with radius 0.35 km so that it will clear the gully and land on the other side?
a rotating fan completes 1150 revolutions every minute. consider the tip of a blade at a radius of 18.0 cm. a through
Imagine two Einstein solids in thermal contact. A has 300 atoms and B has 200 atoms, and qtotal = 100, what is the equilibrium macrostate
Nichrome wire of cross-sectional radius 0.754 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
A 10.0 kg crate is pulled up a rough incline with an initialspeed of 1.5 m/s. The pulling force is 100.0 N parallel to theincline, find the change in kinetic energy of the crate
50j of work are done per cycle on a refrigerator with a coefficient of performance of 5.0. Part A: How much heat is extracted from the cold reservoir per cycle
A 54.00 kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find out the force (magnitude and direction) exerted on her by the bungee cord at an instant while her downward acceleratio..
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