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A 2.00m -long, 450g rope pulls a 13.0kg block of ice across a horizontal, frictionless surface. The block accelerates at 2.40m/s2 . How much force pulls forward on (a) the ice, (b) the rope
An arrow of mass 20 gram is shot horizontally into a bale of hay, striking the hay with a velocity of 60 m/s. Obtain the average stopping force acting on the arrow
An ideal fluid, of density 0.85 x 103kg/m3, flows at 7.0 m/s through a level pipe with radiusof 0.50 cm. Find the speed of flow in the second pipe
Water flows though a 20mm diameter pipe at 3L/min and static pressure of 100mmHG. What is the wall stress of the pipe. The pipe is 1.5mm thick
On a cool morning, when the temperature is 15deg Celsius, you measure the pressure in your car tires to be 30 psi. After driving 20 mi on the freeway, temperature of your tires is 45 deg Celsius. What pressure will your tire gauge now show.
For each of the three surfaces, determine geometrically (without calculation) whether the flux of the vector field F= -x*i-y*j is positive or negative.
an asteroid has a mass of 3.66 x 1020 kg and a radius of 8.2 x 105 m. if a 25 kg mass is dropped from 10 m above the
A baseball (m = 139 gram) approaches a bat horizontally at a speed of 38.5 m/s (86 miles per hour) and is hit straight back at a speed of 45.4 m/s (102 mi/h). find the average force exerted on the ball by bat
The magnitude of the electrostatic force between two identicalions that are separated by a distance of 5.0x10 ^ -10 m is 3.7x10^-9N , How many electrons aremissing from each ion
The drawing shows two situations in which charges are placed onthe x and y axes. They are all located at the same distance of 3.0 cm from the origin O.For each of the situations in the drawing, determine the magnitudeof the net electric field at the ..
In a volcanic eruption, 2 km3 of mountain with a density of 1600 kg/m3 was lifted an average height of 513 m. How much energy in joules was released in this eruption
A 3.50nC point charge is placed at the centre of a hollow metal sphere that has an inner radius 4.90cm and an outer radius 12.0cm. The metal sphere itself is charged to 7.00nC. How much charge is on the inside surface of the hollow sphere? How much c..
How important are cultural differences in determining levels of tolerance toward disputes, and in what ways can disputes lead to positive or negative outcomes for organisations while they are negotiating internationally?
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