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What is the minimum area (in square meters) of the top surface an ice slab 0.251 m thick floating on fresh water that will hold up a 1060 kg automobile? Take the densities of ice and fresh water to be 917 kg/m3 and 998 kg/m3, respectively.
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. Find the angle of elevation of the hose
The combination of an applied force and a friction force produces a constant total torque of 36.8 N · m on a wheel rotating about a fixed axis. Find the magnitude of the torque due to friction
A small flywheel starts from rest and spins up to speed in 10 seconds. During this time it completes a total of 300 revolutions. what is the angular acceleration of the wheel
Find the speed of a satellite in a circular orbit around the earth with a radius 4.01 times the mean radius of the earth; RE 6.37E+3km; ME 5.98E+24kg
A 2.1 ? 103-kg car starts from rest at the top of a 4.5-m-long driveway that is inclined at 15° with the horizontal. find the speed of the car at the bottom of the driveway
A spring-loaded cannon aimed at 47 deg. above the horizontal is on the last car of a long train of flat cars. How far from the cannon on the train does the projectile land
A projectile is shot from the edge of a cliff 115m above ground level with initial speed of 65m/s at an angle of 35 degrees with the horizontal.
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
q1. the flywheel of an engine has a moment of inertia 2.80 rm kg cdot rm m 2 about its rotation axis. what is its
We drop a 26-g ice cube (0C) into 1000 g of water (20C). Find the total change of entropy of the ice and water when a common temperature has been reached
An object experiences a constant acceleration of 2.0 m/s^2 along the -x axis for 2.7s, Find the initial velocity vector of the object
A negatively charged particle remains stationary in an downwardly directed E field between two parallel charged plates separated by 2cm. How many electrons does the charged particle contain
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