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A building made of concrete is gauged to be 425 m tall when it is -23°C outside. How much taller will it be when the temperature reaches 41°C? (In cm)
An infinite line of positive charge lies along the y axis, with charge density ? = 1.20 ?C/m. find the magnitude of the net force exerted on the dipole
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.08 km. What is the direction (relative to due east) of the couple's displacement
A constant-volume gas thermometer reads 50.0 torr at the triple point of water. What ideal-gas temperature corresponds to a pressure of 678 torr
A 5.6cm diameter horizontal pipe gradually narrows to 2.9cm. When water flows through this pipe at a certain rate, What is the volume rate of flow
A 54-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. Find the work done by the kinetic frictional force that acts on the skis
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. At what speed must the chamber move so that an astronaut is subjected to 2.48 times the acceleration due to gravity
The drawing shows three particles far away from any other objects and located on a straight line. Find the net gravitational force
You roll a ball along the floor for your dog to chase after and catch it. You roll the ball with an initial speed of 15 m/s, how far does the ball go before your dog catches it
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2. What is theaverage speed over the entire trip
an entertainer juggles balls while doing other activities. in one act she throws a ball vertically upward and while it
A speedboat moves on a lake with initial velocity vector v1,x = 8.35 m/s and v1,y = -2.39 m/s, then accelerates for 6.81 seconds at an average acceleration of aav,x = -0.106 m/s2 and aav,y = 0.102 m/s2. What are the components of the speedboat\'s fin..
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
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