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Q. The largest gorilla on earth, with a mass of about 3.1 x 10^2 kg was hanging from two vines; each made an angle of thirty degrees with the vertical. Determine the magnitude of the force of tension of each vine. What would happen to the tensions if the upper ends of the vines where farther apart?
Q. As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concrete barrier and takes 0.2 s to stop.
A string vibrates in five segments to a frequency of 460Hz. (a) what is its fundamental frequency? (b) What frequency will cause it to vibrate in three segments.
What are new charge on spheres - Two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa
A car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down.
Two shoppers walk from the door of mall to their car, that is 250m down a lane of cars and then turn 90 degrees to the right and walk an additional 60m what is the magnitude of the displacement of the shopper's car from mall door.
How long would it take you to cover the 83 length of the walkway if, once you get on the walkway, you at once turns around and start walking in the opposite direction with a speed of 1.7 relative to the walkway.
Find the electric field strength from the wire. How long is each spring when hanging as shown.
Find the boundary layer thickness and drag on a given plate if Water at 15°C flows over a plate 2m long and 25cm wide at a velocity of 5 m/s along its length.
How long will a radar signal take to complete a round trip between earth and mars when the two planets are 0.7 AU apart.
A 32.0 kg hammer strikes a steel spike 2.70 cm in diameter while moving with speed of 24.0 m/s. The hammer rebounds with speed 11.0 m/s after 0.110 s. What is an average strain in the spike all through the impact.
A hotel elevator ascends 110 {rm m} with a maximum speed of 4 {rm m/s}. Its acceleration and deceleration both have a magnitude of 1.20 {rm m/s^2}.
assume a bar 2.5 m long expands 0.5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
An oil drop carries one excess electron and weighs 9.2 10-15 N. What electric field strength is necessary to suspend drop so it is motionless.
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